routine

25/12/944.cpp

@@ -0,0 +1,18 @@
+#include <string>
+#include <vector>
+
+class Solution {
+public:
+    int minDeletionSize(std::vector<std::string>& strs) {
+        int ans = 0;
+        for(int i = 0;i<strs[0].size();i++){
+            for (int j = 1; j < strs.size(); j++) {
+                if (strs[j][i] < strs[j-1][i]) {
+                    ans++;
+                    break;
+                }
+            }
+        }
+        return ans;
+    }
+};