Maximum Subarray Sum - Error

#1

#include
#include
using namespace std;

int main() {
int t;
cin>>t;

int n;
long int arr[10000];


for(int i=0;i<t;++i){
	cin>>n;
    int csum=0,maxsum=0;
	if(n<1||n>100000)
    return 0;

	for(int j=0;j<n;++j)
	cin>>arr[j];

    for(int k=0;k<n;++k)
	{
		csum+=arr[k];
		if(csum<0)
		csum=0;

		maxsum=max(csum,maxsum);
	}

	cout<<maxsum<<"\n";
}
return 0;

}

PROBLEM: The code is working fine on my machine and during compiling and testing. But when I submit, I am getting a ‘run error’ in all the test cases.

#2

@poojagera value of ‘n’ can be upto 100000 so define
long int arr[100001] and maxsum and csum also as ‘long long int’

#3

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