C - Rotation

https://atcoder.jp/contests/abc258/submissions/32905877

AtCoder/ABC258/C/C.cpp

@@ -0,0 +1,31 @@
+#include <iostream>
+#include <string>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+int n, q, cnt;
+std::string s;
+
+int main() {
+    std::ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    cin >> n >> q >> s;
+
+    while (q--) {
+        int op, x;
+
+        cin >> op >> x;
+
+        if (op == 1) {
+            cnt = (cnt + x) % n;
+        } else {
+            x = (x - cnt + n) % n;
+            cout << s.at(x ? x - 1 : n - 1) << endl;
+        }
+    }
+
+    return 0;
+}