Question

How to calculate the next multiple of 10 in C++

Answer 1

#include <iostream>

int next_multiple_of_10(int n) {
    return (n % 10 == 0) ? n + 10 : n + (10 - n % 10);
}
 
int main() {
    int nums[] = {23, 10, 0, 1841};
    int length = sizeof(nums) / sizeof(nums[0]);
 
    for (int i = 0; i < length; i++) {
        std::cout << next_multiple_of_10(nums[i]) << "\n";
    }
}
  
  
 
/*
run:
 
30
20
10
1850

*/

 

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