Added Minimum Changes To Make Alternating Binary String.java

varunu28 · web-flow · commit 7b018d0ee577 · 2021-02-18T18:22:40.000-08:00
diff --git a/Easy/Minimum Changes To Make Alternating Binary String.java b/Easy/Minimum Changes To Make Alternating Binary String.java
@@ -0,0 +1,11 @@
+class Solution {
+  public int minOperations(String s) {
+    int numOfChanges = 0;
+    for (int i = 0; i < s.length(); i++) {
+      if (s.charAt(i) - '0' != i % 2) {
+        numOfChanges++;
+      }
+    }
+    return Math.min(numOfChanges, s.length() - numOfChanges);
+  }
+}
