'commit'

GESP/Level4/GESP202309/4_1.cpp

@@ -0,0 +1,27 @@
+#include <bits/stdc++.h>
+using namespace std;
+/*
+2
+8 1362
+16 3F0
+*/
+int main() {
+  int T;
+  cin >> T;
+  while (T--) {
+    int k;
+    string s;
+    int res = 0;
+    cin >> k >> s; // k进制，s是k进制的一个数
+    for (int i = 0; i < s.size(); i++) {
+      int x = 0;
+      if (s[i] >= 'A')
+        x = s[i] - 'A' + 10;
+      else
+        x = s[i] - '0';
+      res = res * k + x;
+    }
+    cout << res << endl;
+  }
+  return 0;
+}