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danielrzhangdanielrzhang
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‎bluebook/BlueBookChange.java

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package bluebook;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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public class BlueBookChange {
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public static void main(String[] args) throws IOException {
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BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
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int n = Integer.parseInt(in.readLine());
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int quarters = n / 25;
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int dimes = (n - (quarters * 25)) / 10;
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int nickels = (n - (quarters * 25) - (dimes * 10)) / 5;
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int pennies = n - (quarters * 25) - (dimes * 10) - (nickels * 5);
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String result = "";
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if (n == 1) {
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result += n + " cent requires ";
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} else {
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result += n + " cents requires ";
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}
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if (quarters == 1) {
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result += quarters + " quarter";
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}
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else if (quarters != 0) {
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result += quarters + " quarters";
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}
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if (dimes == 1) {
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if (quarters != 0) {
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result += ", ";
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}
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result += dimes + " dime";
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}
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else if (dimes != 0) {
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if (quarters != 0) {
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result += ", ";
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}
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result += dimes + " dimes";
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}
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if (nickels == 1) {
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if (dimes != 0 || quarters != 0) {
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result += ", ";
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}
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result += nickels + " nickel";
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}
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else if (nickels != 0) {
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if (dimes != 0 || quarters != 0) {
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result += ", ";
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}
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result += nickels + " nickels";
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}
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if (pennies == 1) {
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if (nickels != 0 || dimes != 0 || quarters != 0) {
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result += ", ";
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}
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result += pennies + " cent";
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}
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else if (pennies != 0) {
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if (nickels != 0 || dimes != 0 || quarters != 0) {
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result += ", ";
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}
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result += pennies + " cents";
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}
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System.out.println(result + ".");
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}
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}

‎bluebook/BlueBookCost.java

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package bluebook;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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public class BlueBookCost {
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public static void main(String[] args) throws IOException {
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BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
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int n = Integer.parseInt(in.readLine());
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int mass;
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int amount;
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double extra;
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for (int i = 0; i < n; i++) {
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mass = Integer.parseInt(in.readLine());
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if (mass <= 30) {
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amount = 38;
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}
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else if (mass <= 50) {
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amount = 55;
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}
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else if (mass <= 100) {
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amount = 73;
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}
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else {
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extra = (mass - 100) / 50.0;
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amount = 73 + (int) (Math.ceil(extra)) * 24;
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}
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System.out.println(amount);
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}
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}
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}

‎bluebook/BlueBookCrossCountry.java

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package bluebook;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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public class BlueBookCrossCountry {
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public static void main(String[] args) throws IOException {
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BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
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String code = in.readLine();
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switch (code) {
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case "MG": {
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System.out.println("midget girls");
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break;
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}
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case "MB": {
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System.out.println("midget boys");
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break;
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}
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case "JG": {
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System.out.println("junior girls");
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break;
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}
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case "JB": {
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System.out.println("junior boys");
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break;
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}
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case "SG": {
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System.out.println("senior girls");
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break;
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}
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case "SB": {
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System.out.println("senior boys");
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break;
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}
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default: {
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System.out.println("invalid code");
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}
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}
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}
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}

‎bluebook/BlueBookDays.java

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package bluebook;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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public class BlueBookDays {
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public static boolean checkLeapYear(int year) {
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if (year % 4 == 0) {
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if (year % 100 == 0) {
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if (year % 400 == 0) {
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return true;
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} else {
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return false;
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}
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} else {
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return true;
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}
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} else {
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return false;
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}
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}
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public static void main(String[] args) throws IOException {
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BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
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int testCases = Integer.parseInt(in.readLine());
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int[] dayArray = new int[] {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
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String[] input;
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int year, month, day;
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boolean isLeapYear;
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int dayCounter;
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for (int i = 0; i < testCases; i++) {
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input = in.readLine().split(" ");
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year = Integer.parseInt(input[0]);
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month = Integer.parseInt(input[1]);
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day = Integer.parseInt(input[2]);
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isLeapYear = checkLeapYear(year);
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dayCounter = 0;
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for (int j = 0; j < month - 1; j++) {
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if (j == 1 && isLeapYear) {
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dayCounter += 29;
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} else {
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dayCounter += dayArray[j];
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}
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}
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dayCounter += day;
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System.out.println(dayCounter);
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}
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}
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}

‎bluebook/BlueBookDigits.java

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package bluebook;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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public class BlueBookDigits {
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public static void main(String[] args) throws IOException {
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BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
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int n = Integer.parseInt(in.readLine());
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String[] number;
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int digits;
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for (int i = 0; i < n; i++) {
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digits = 0;
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number = in.readLine().split("");
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for (int j = 0; j < number.length; j++) {
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if (!number[j].equals("-")) {
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digits++;
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}
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}
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System.out.println(digits);
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}
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}
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}

‎bluebook/BlueBookDigitsAndSums.java

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package bluebook;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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public class BlueBookDigitsAndSums {
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public static void main(String[] args) throws IOException {
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BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
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String[] input = in.readLine().split(" ");
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int n1 = Integer.parseInt(input[0]);
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int n2 = Integer.parseInt(input[1]);
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int currentNum;
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int copyNum;
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int total;
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for (int i = n1; i <= n2; i++) {
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total = 0;
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currentNum = i;
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copyNum = i;
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for (int j = 0; j < 3; j++) {
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total += (int) Math.pow(currentNum % 10, 3);
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currentNum /= 10;
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}
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if (total == copyNum) {
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System.out.println(i);
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}
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}
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}
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}

‎bluebook/BlueBookDirection.java

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package bluebook;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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public class BlueBookDirection {
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public static void main(String[] args) throws IOException {
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BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
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int n = Integer.parseInt(in.readLine());
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int direction;
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String result;
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for (int i = 0; i < n; i++) {
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direction = Integer.parseInt(in.readLine());
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if (direction >= 0 && direction <= 90) {
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if (direction <= 90 - direction) {
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result = "N";
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}
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else {
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result = "E";
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}
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}
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else if (direction >= 90 && direction <= 180) {
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if (direction - 90 <= 180 - direction) {
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result = "E";
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}
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else {
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result = "S";
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}
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}
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else if (direction >= 180 && direction <= 270) {
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if (direction - 180 <= 270 - direction) {
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result = "S";
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}
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else {
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result = "W";
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}
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}
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else {
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if (direction - 270 <= 360 - direction) {
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result = "W";
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}
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else {
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result = "N";
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}
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}
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System.out.println(result);
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}
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}
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}

‎bluebook/BlueBookEquation.java

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package bluebook;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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public class BlueBookEquation {
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public static void main(String[] args) throws IOException {
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BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
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double first = Double.parseDouble(in.readLine());
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double second = Double.parseDouble(in.readLine());
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if (first == 0 && second == 0) {
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System.out.println("indeterminate");
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} else if (first == 0 && second != 0) {
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System.out.println("undefined");
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} else {
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System.out.printf("%.2f%n", -second / first);
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}
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}
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}

‎bluebook/BlueBookExactDivisors.java

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package bluebook;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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public class BlueBookExactDivisors {
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public static void main(String[] args) throws IOException {
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BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
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int n = Integer.parseInt(in.readLine());
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for (int i = 1; i <= (int) Math.sqrt(n); i++) {
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if (n % i == 0) {
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System.out.println(i);
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if (n / i != i) {
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System.out.println(n / i);
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}
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}
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}
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}
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}

‎bluebook/BlueBookFindTheCharacter.java

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package bluebook;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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public class BlueBookFindTheCharacter {
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public static void main(String[] args) throws IOException {
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BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
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char ch = in.readLine().toLowerCase().charAt(0);
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String input = in.readLine();
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int counter = 0;
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for (int i = 0; i < input.length(); i++) {
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if (input.toLowerCase().charAt(i) == ch) {
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counter++;
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}
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}
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System.out.println(input);
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System.out.println(counter);
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}
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}

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