'commit'

TangDou/XiTi/1217.cpp

@@ -0,0 +1,14 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    int score;
+    cin >> score;
+
+    if (score >= 90) cout << "A" << endl;
+    else if (score < 90 && score >= 70) cout << "B" << endl;
+    else if (score >= 60 && score < 70) cout << "C" << endl;
+    else if (score < 60) cout << "D" << endl;
+    return 0;
+}