Question

How to clear part of array element in C++

Answer 1

#include <iostream>
#include <array>

int main() {
    std::array<int, 7> arr {1, 2, 3, 4, 5, 6, 7};

    for (const auto &item : arr) {
        std::cout << item << " ";
    }
    std::cout << "\n";

    std::fill(arr.begin(), arr.begin() + 3, 0);

    for (const auto &item : arr) {
        std::cout << item << " ";
    }
 
    return 0;
}
     
     
    
     
     
/*
run:
   
1 2 3 4 5 6 7 
0 0 0 4 5 6 7 
      
*/

 

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