Next permutation.... the question is showing TLE

#include
#include
using namespace std;
int main() {
int t;
cin>>t;
while(t)
{
int n;
cin>>n;
int a[n];
for (int i=0;i<n;i++)
{
cin>>a[i];
}

	if (next_permutation(a,a+n))
	{
		for (int x:a)
		{
			cout<<x<<" ";
		}
	}
	else
	{
		sort(a,a+n);
		for(int i=0;i<n;i++)
		{
			cout<<a[i]<<" ";
		}
	}
	cout<<endl;
}
return 0;

}

HOW CAN I OPTIMIZE THIS SOLUTION??

you forgot to decrease t
so it run infinite loop and hence gives tle

after decreasing t code will pass all testcases

i hope this help
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