Question

How to check if all numbers of a vector are even in C++

Answer 1

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

int main() {
    std::vector<int> vec(10, 4);
    
    for (auto val : vec) {
        std::cout << val << " ";
    }

    if (std::all_of(vec.cbegin(), vec.cend(), [](int i) { return i % 2 == 0; }))
        std::cout << "\nAll numbers are even";
}
   
   
     
    
/*
run:
    
4 4 4 4 4 4 4 4 4 4 
All numbers are even
    
*/

 

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