Create minimum-deletions-to-make-string-balanced.cpp

Author: kamyu104

C++/minimum-deletions-to-make-string-balanced.cpp

@@ -0,0 +1,18 @@
+// Time:  O(n)
+// Space: O(1)
+
+class Solution {
+public:
+    int minimumDeletions(string s) {
+        int result = 0, b_cnt = 0;
+        for (const auto& c : s) {
+            if (c == 'b') {
+                ++b_cnt;
+            } else if (b_cnt) {
+                --b_cnt;
+                ++result;
+            }
+        }
+        return result;
+    }
+};