'commit'

TangDou/JiShuanKe/2023-03-10/T3706.cpp

@@ -0,0 +1,19 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+int n;
+string s;
+int res;
+
+int main() {
+    cin >> n >> s;
+    for (int i = 0; i < (int)s.size(); i++)
+        for (int j = i + 1; j < (int)s.size(); j++) {
+            if (s[i] == s[j]) {
+                res = max(res, j - i);
+                break;
+            }
+        }
+    cout << res << endl;
+    return 0;
+}