Create 2211. Count Collisions on a Road (#949)

Author: Chayandas07

2211. Count Collisions on a Road

@@ -0,0 +1,23 @@
+class Solution {
+public:
+    int countCollisions(string directions) {
+        int n = directions.size();
+        int left = 0, right = n - 1;
+        int cnt = 0;
+        while (left < n && directions[left] == 'L'){
+            left++;
+        }
+        while (right >= 0 && directions[right] == 'R'){
+            right--;
+        }
+        if (left > right){
+            return 0;
+        }
+        for (int i = left; i <= right; i++){
+            if (directions[i] != 'S'){
+                cnt++;
+            }
+        }
+        return cnt;
+    }
+};