Merge pull request #60 from yuj2n/yujin

`Week 10` [전유진] 문제풀이

Author: yuj2n

yujin-level0/Week10/문자열 안에 문자열.js

@@ -0,0 +1,18 @@
+function solution(str1, str2) {
+    for(let i=0; i<= str1.length - str2.length; i++) {
+        let contain = true;
+        for(let j=0; j<str2.length; j++) {
+            if (str1[i+j] !== str2[j]) {
+                contain = false;
+                break;
+            }
+        }  
+        if (contain) return 1;
+    }
+    return 2;
+}
+
+// 다른 풀이
+// function solution(str1, str2) {
+//     return str1.includes(str2) ? 1 : 2;
+// }

yujin-level0/Week10/짝수의 합.js

@@ -0,0 +1,15 @@
+function solution(n) {
+    let sum = 0;
+    for(let i=1; i<=n; i++) {
+        if (i%2===0) {
+            sum += i;
+        }
+    }
+    return sum;
+}
+
+// 다른 풀이
+// function solution(n) {
+//     var half = Math.floor(n/2);
+//     return half*(half+1);
+// }

yujin-level0/Week9/각도기.js

@@ -8,4 +8,9 @@ function solution(angle) {
     } else if (angle === 180) {
         return 4;
     }
-}
+}
+
+// 다른 풀이
+// function solution(angle) {
+//     return [0, 90, 91, 180].filter(x => angle>=x).length;
+// }