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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. bool Check(int num){
  6.     return (num >= 7777) ? true : false;
  7. }
  8.  
  9. int main(){
  10.  
  11.     // 探索範囲は[lo, hi]
  12.     int lo = 1;
  13.     int hi = 100000;
  14.  
  15.     while(lo < hi) {
  16.         // printf("lo, hi = %d, %d\n", lo, hi);
  17.         int k = (lo + hi) / 2;
  18.         if (Check(k))
  19.             hi = k;
  20.         else
  21.             lo = k + 1;
  22.     }
  23.  
  24.     cout << lo << endl;    
  25.     return 0;
  26. }
Success #stdin #stdout 0s 2896KB
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Standard input is empty
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7777
https://ideone.com/469aA4
language:
C++ (gcc 8.3)
created:
10 years ago
visibility:
secret

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