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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. int main(){
  4.     int n , s, m ;
  5.     cin >> n >> s >> m ;
  6.     int song  = s*m ;
  7.     int soNgayDiCho = s - s/7 ;
  8.     int tongDiCho = soNgayDiCho*n;
  9.     if(tongDiCho < song) cout << "-1";
  10.     else{
  11.         cout << (song + n - 1)/n ;
  12.     }
  13. }
  14.  
Success #stdin #stdout 0.01s 5304KB
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stdin
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7 5 7
stdout
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5
https://ideone.com/CK0jR8
[Tham Lam]. Bài 14. Mua lương thực SPOJ
language:
C++ (gcc 8.3)
created:
231 days ago
visibility:
public

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