김명환 / 5주차 / 6문제

수요일/MyungHwan/Week05/1.js

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+function solution(s) {
+    if (s.length !== 4 && s.length !== 6) 
+        return false;
+    for (let i = 0; i < s.length; i++) {
+      if (isNaN(Number(s[i]))) return false;
+    }
+    return true;
+  }

수요일/MyungHwan/Week05/2.js

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+function solution(left, right) {
+    let answer = 0;
+
+    for(let i = left; i <= right; i++){
+        Math.sqrt(i) % 1 === 0 ? answer += i : answer -= i;
+    } return -answer
+}

수요일/MyungHwan/Week05/3.js

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+function solution(price, money, count) {
+    let total = 0;
+
+    for(let i = 0; i <= count; i++){
+        total += price * i
+    }
+    return total > money ? total - money : 0;
+}

수요일/MyungHwan/Week05/4.js

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+function solution(arr1, arr2) {
+    let answer = [];
+    for(let i = 0; i < arr1.length; i++){
+        answer[i] = [];
+        for(let j = 0; j < arr1[i].length; j++){
+            answer[i].push(arr1[i][j] + arr2[i][j])
+        }
+    }
+    return answer;
+}

수요일/MyungHwan/Week05/5.js

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+process.stdin.setEncoding('utf8');
+process.stdin.on('data', data => {
+    const n = data.split(" ");
+    const a = Number(n[0]), b = Number(n[1]);
+    // console.log(a);
+    // console.log(b);
+    const answer = ('*'.repeat(a)+`\n`).repeat(b)
+    console.log(answer)
+});

수요일/MyungHwan/Week05/6.js

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+function solution(n, m) {
+    let answer = [];
+
+    const gcd = (n, m) => {
+        if( m === 0) return n
+        return gcd(m, n % m)
+    }
+    const lcm = (n, m) => n * m / gcd(n,m)
+    return [gcd(n,m), lcm(n,m)]
+}