Sir what is wrong in this code?

#1

#include
#include
using namespace std;
int main()
{
int arr[100];
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]<<" ";

}

#2

hey @Harshit-Kumar-2577121455897279 in questions you are being provided test cases as well you are not taking them into consideration, moreover the size of array could be upto 1000 but you have taken it as 100 only.
Here is your corrected code for reference purpose:

#3

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