💯Solve: basic-training/day21

laetipark · laetipark · commit 875b09455c12 · 2024-03-22T01:08:57.000+09:00
diff --git a/programmers/javascript/basic-training/day21/beyond-last-five-ranks.js b/programmers/javascript/basic-training/day21/beyond-last-five-ranks.js
@@ -0,0 +1,21 @@
+// https://school.programmers.co.kr/learn/courses/30/lessons/181852
+
+const readline = require('readline');
+const rl = readline.createInterface({
+  input: process.stdin,
+  output: process.stdout,
+});
+
+let numList = [];
+
+rl.on('line', (line) => {
+  numList = line.split(' ');
+  rl.close();
+}).on('close', () => {
+  const answer = solution(numList);
+  console.log(answer);
+});
+
+const solution = (numList) => {
+  return numList.sort((a, b) => a - b).slice(5);
+};
diff --git a/programmers/javascript/basic-training/day21/convert-string-to-integer.js b/programmers/javascript/basic-training/day21/convert-string-to-integer.js
@@ -0,0 +1,19 @@
+// https://school.programmers.co.kr/learn/courses/30/lessons/181849
+
+const readline = require('readline');
+const rl = readline.createInterface({
+  input: process.stdin,
+  output: process.stdout,
+});
+
+let numStr = [];
+
+rl.on('line', (line) => {
+  numStr = line;
+  rl.close();
+}).on('close', () => {
+  const answer = solution(numStr);
+  console.log(answer);
+});
+
+const solution = nStr => Number(nStr);
diff --git a/programmers/javascript/basic-training/day21/integer-part.js b/programmers/javascript/basic-training/day21/integer-part.js
@@ -0,0 +1,21 @@
+// https://school.programmers.co.kr/learn/courses/30/lessons/181850
+
+const readline = require('readline');
+const rl = readline.createInterface({
+  input: process.stdin,
+  output: process.stdout,
+});
+
+let flo = [];
+
+rl.on('line', (line) => {
+  flo = Number(line);
+  rl.close();
+}).on('close', () => {
+  const answer = solution(flo);
+  console.log(answer);
+});
+
+const solution = (flo) => {
+  return Math.floor(flo);
+};
diff --git a/programmers/javascript/basic-training/day21/shorten-expression.js b/programmers/javascript/basic-training/day21/shorten-expression.js
@@ -0,0 +1,44 @@
+// https://school.programmers.co.kr/learn/courses/30/lessons/181851
+
+const readline = require('readline');
+const rl = readline.createInterface({
+  input: process.stdin,
+  output: process.stdout,
+});
+
+let rank = [];
+let attendance = [];
+let count = 0;
+
+rl.on('line', (line) => {
+  if (count === 0) {
+    rank = line.split(' ').map(Number);
+  } else {
+    attendance = line.split(' ').map(Number).map(item => item === 1);
+  }
+  count++;
+  if (count > 1) {
+    rl.close();
+  }
+}).on('close', () => {
+  const answer = solution(rank, attendance);
+  console.log(answer);
+});
+
+const solution = (rank, attendance) => {
+  const filterArray = rank
+    .filter((item, index) => attendance[index])
+    .sort((a, b) => a - b)
+    .filter((item, index) => index < 3);
+
+  const filterStudents = rank
+    .filter(item => filterArray.includes(item))
+    .sort((a, b) => a - b);
+
+  let arr = [];
+  for (let i = 0; i < filterStudents.length; i++) {
+    arr.push(rank.indexOf(filterStudents[i]));
+  }
+
+  return (10000 * arr[0]) + (100 * arr[1]) + arr[2];
+};
diff --git a/programmers/javascript/basic-training/day21/sum-of-string-integers.js b/programmers/javascript/basic-training/day21/sum-of-string-integers.js
@@ -0,0 +1,21 @@
+// https://school.programmers.co.kr/learn/courses/30/lessons/181849
+
+const readline = require('readline');
+const rl = readline.createInterface({
+  input: process.stdin,
+  output: process.stdout,
+});
+
+let numStr = [];
+
+rl.on('line', (line) => {
+  numStr = line;
+  rl.close();
+}).on('close', () => {
+  const answer = solution(numStr);
+  console.log(answer);
+});
+
+const solution = (numStr) => {
+  return numStr.split('').reduce((acc, cur) => Number(acc) + Number(cur));
+};
