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  1. #include <iostream>
  2. using namespace std;
  3.  
  4.  
  5. int main() {
  6.     long long A, B, C;
  7.  
  8.     cin >> A >> B >> C;
  9.  
  10.     long long result = B / C - (A - 1) / C;
  11.  
  12.     cout << result << endl;
  13.  
  14.     return 0;
  15. }
  16.  
Success #stdin #stdout 0.01s 5284KB
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https://ideone.com/Yrv61f
language:
C++ (gcc 8.3)
created:
73 days ago
visibility:
secret

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