C++ array out-of-bounds crash

Question

Hey, I’m trying to make an array sum in C++ but my program crashes:

#include 
using namespace std;

int main() {
    int arr[5];
    for (int i = 0; i 

Why does it crash when I print “Done”? Any fix?

Answer 1

Please, share the entire code.

You're probably indexing out of array. Your loop should look like

for (int i = 0; i < 5; i++)

i.e., stop before reaching index 5. You have 5 elements: 0, 1, 2, 3, 4; there's no element indexed with 5 (as it would be the 6th element).

Answer 2

#include<iostream>
using namespace std;

int main() {
    int arr[5];
    for (int i = 0; i<5;i++){
int sum=int sum + arr[i];}
cout<<"sum of the arry is"<<sum<<endl;
return 0;
}