Question

How to print the 3 smallest values from vector in C++

Answer 1

#include <iostream>
#include <vector>
#include <algorithm>

void sortVector(std::vector<int> &v) {
    sort(v.begin(), v.end());
}

void printSmallest3(std::vector<int> &v) {
    if (v.size() < 3) {
        return;
    }
    
    sortVector(v);

    for (auto i = v.begin(); i != v.begin() + 3; i++)
        std::cout << *i << ' ';
}

int main()
{
    std::vector<int> v = {12, 98, 80, 50, 88, 35, 70, 60, 97, 85, 89};

    printSmallest3(v);
      
    return 0;
}
  
  
  
  
/*
run:
  
12 35 50 
  
*/

 

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