Question

How to round up the result of integer division in C++

Answer 1

#include <iostream>
#include <cmath>

int main() {
    int a = 247, b = 9;
    
    double result = static_cast<double>(a) / b;
    int result_round_up = static_cast<int>(std::ceil(static_cast<double>(a) / b));
    
    std::cout << result << std::endl;
    std::cout << result_round_up << std::endl;
}

  
  
/*
run:
     
27.4444
28
              
*/

 

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