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Hud
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GITA MASALA
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‎out/production/GitaProjects/fori/For23.class

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‎out/production/GitaProjects/fori/For24.class

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‎out/production/GitaProjects/fori/for25.class

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‎out/production/GitaProjects/fori/for26.class

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‎out/production/GitaProjects/fori/for27.class

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‎out/production/GitaProjects/fori/for28.class

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‎out/production/GitaProjects/fori/for29.class

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‎src/fori/For1.java

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package fori;
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public class For1 {
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public static void main(String[] args) {
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solution(5, 10);
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}
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public static void solution(int k, int n) {
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// k sonini n marta chop etilsin
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for (int i = 1; i <= n; i++) {
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System.out.print(String.format("%d: %d\n", i, k));
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}
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}
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}

‎src/fori/For10.java

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package fori;
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public class For10 {
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public static void main(String[] args) {
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solution(4);
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}
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// s = 1 + 1/2 + 1/3 +1/4+...+ 1/n;
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public static void solution(int n) {
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double s = 0;
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for (int i = 1; i <= n; i++) {
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s += 1.0 / i;
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}
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System.out.println(s);
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}
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}

‎src/fori/For13.java

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package fori;
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public class For13 {
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public static void main(String[] args) {
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solution(3);
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}
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/**
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* @param n n>0 bo'lgan butun son
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* 1.1 - 1.2 + 1.3 - 1.4 + 1.5 + ... + n
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*/
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public static void solution(int n) {
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double sum = 0; // summani hisoblash uchun
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int ishora = 1; // 1, -1
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for (double i = 1.1; i <= n; i += 0.1) {
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// i: 1.1, 1.2, 1.3, 1.4, 1.5... n
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sum += ishora * i; // -1 * 1.2
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ishora *= -1; // -1
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}
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System.out.println(sum);
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}
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}

‎src/fori/For20.java

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package fori;
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import java.util.Scanner;
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public class For20 {
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public static void main(String[] args) {
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Scanner scanner = new Scanner(System.in);
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int n = scanner.nextInt();
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long s = solution(n); // 1!+2!+..+
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System.out.println(s);
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}
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// a + b
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// a,b => -10^100 .. 10^100
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// 5! = 1*2*3*4*5
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// 5! = 5*4! = 5*24=120
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// 4! = 4*3! = 4*6 = 24
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// 3! = 3*2! = 3*2=6
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// 2! = 2*1! = 2
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// 1! = 1
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// sum = 1!+2!+3!+4!+...+n!
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public static long solution(long n) {
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long s = 0;
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long factorial = 1;
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for (int i = 1; i <= n; i++) {
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factorial *= i;
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s += factorial;
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}
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return s;
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}
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}

‎src/fori/For22.java

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package fori;
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public class For22 {
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public static void main(String[] args) {
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double result = solution(3,0.5);
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System.out.println(result);
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// 1 + 0.5/1! + 0.5^2/2! + 0.5^3/3!
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}
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public static double solution(int n, double x) {
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double sum = 1; // sum + x^i/i! + x^2/2! + x^3/3! + ...
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int factorial = 1;
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double pow = x;
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for (int i = 1; i <= n; i++) {
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// pow = x^i
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// factorial = i!
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sum += pow / factorial;
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factorial *= i;
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pow *= x; // x * x
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}
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return sum;
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}
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}

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