fork download
copy 
  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.     int n, ans, a, b;
  6.     cin >> n >> ans >> a >> b;
  7.  
  8.     int queryCount = 0;
  9.     int guessCount = 0;
  10.     bool lastGuessCorrect = false;
  11.  
  12.     for (int i = 0; i < n; i++) {
  13.         char op;
  14.         int x;
  15.         cin >> op >> x;
  16.  
  17.         if (op == '?') {
  18.             queryCount++;
  19.         } else if (op == '!') {
  20.             guessCount++;
  21.             if (i == n - 1) { // 最后一次猜测
  22.                 if (x == ans) {
  23.                     lastGuessCorrect = true;
  24.                 }
  25.             }
  26.         }
  27.     }
  28.  
  29.     if (lastGuessCorrect && queryCount <= a && guessCount <= b) {
  30.         cout << "yes" << endl;
  31.     } else {
  32.         cout << "no" << endl;
  33.     }
  34.  
  35.     return 0;
  36. }
Success #stdin #stdout 0.01s 5288KB
comments (?)
stdin
copy 
4 10 2 2
? 5
? 8
! 7
! 10
stdout
copy 
yes
https://ideone.com/ewZb2a
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!