testcase is not given

general
1

if test case is not given in any program then when it will stop taking input???

2

If the number of test cases is not given, you will need to take input till the end of file, if you code in C/CPP, you can use this piece of code:

long lont int n;

while(scanf("%lld", &n)!=EOF)

    {

       //Your code here

    }

The number from the stdin will be stored in the long long integer variable n, Hope that helps :slight_smile: