[LEET] 1758 Minimum Changes To Make Alternating Binary String (Easy)

Author: 2YH02

이용훈/10주차/260305.js

@@ -0,0 +1,18 @@
+/**
+ * @param {string} s
+ * @return {number}
+ */
+var minOperations = function(s) {
+    let mismatchStartWith0 = 0;
+    let mismatchStartWith1 = 0;
+
+    for (let i = 0; i < s.length; i++) {
+        const expected0 = (i % 2 === 0) ? '0' : '1';
+        const expected1 = (i % 2 === 0) ? '1' : '0';
+
+        if (s[i] !== expected0) mismatchStartWith0++;
+        if (s[i] !== expected1) mismatchStartWith1++;
+    }
+
+    return Math.min(mismatchStartWith0, mismatchStartWith1);
+};