Next permutation

#1

Its showing run error.

#include
#include

using namespace std;

int main(){

int arr[100];

int t;
cin>>t;



while(t>0){
    int n;
	cin>>n;
	for(int i = 0; i<n; i++){
		cin>>arr[i];
	}

	next_permutation(arr, arr + n);
	for(int i = 0; i<n; i++){
		cout<<arr[i]<<" ";
	}
	cout<<endl;
	t--;
}
return 0;

}

#2

hey @arjun.12narang
increase array size to 1000

#3

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