Why is this code getting runtime error at the time of submitting

#include
using namespace std;

void merge(int *arr, int start, int end) {
int mid = (start+end)/2;
int i = start, j = mid+1, k = start;
int temp[10000];

while(i <= mid and j <= end) {
    if(arr[i] < arr[j]) {
        temp[k++] = arr[i++];
    } 
	else {
        temp[k++] = arr[j++];
    }
}
while(i <= mid) {
    temp[k++] = arr[i++];
}
while(j <= end) {
    temp[k++] = arr[j++];
}
for(int i = start; i <= end; i++) {
    arr[i] = temp[i];
}

}

// function for merge sort
void mergeSort(int *arr, int start, int end) {

if(start >= end) {
    return;
}

int mid = (start+end)/2;
mergeSort(arr, start, mid);
mergeSort(arr, mid+1, end);
merge(arr, start, end);

}

int main()
{
int n;
cin>>n;
int arr[10000];
for(int i=0;i<n;i++)
{
cin>>arr[i];
}
mergeSort(arr,0,n-1);
for(int i=0;i<n;i++)
{
cout<<arr[i]<<" ";
}
return 0;
}

@sroy3166
n can be upto 200000, so increase size of your arr[] and temp[] to 200001. Also there is mistake in line 9, “and” doesn’t works in c++ change it to “&&”.

i think “and” works in c++.It’s size problem.Now it’s successfully submitted.thanks.

@sroy3166 mark it as resolved. thankyou