'commit'

TangDou/CSP-J/AcWingTraining/T3/433.cpp

@@ -0,0 +1,25 @@
+#include <bits/stdc++.h>
+using namespace std;
+
+int main() {
+    string str;
+    cin >> str;
+    int sum = 0;
+    for (int i = 0, j = 1; i < str.size() - 1; i++) // 最后一位是识别码，需要单独处理
+        if (str[i] != '-') {
+            sum += (str[i] - '0') * j;
+            j++;
+        }
+    sum %= 11;
+
+    char c = 'X';
+    if (sum < 10) c = '0' + sum;
+    if (c == str.back()) // str.back()是指最后一位的识别码
+        puts("Right");
+    else {
+        str.back() = c;
+        cout << str << endl; // 替换正确的识别码
+    }
+
+    return 0;
+}