Help me in solving GSCV210 problem

My issue

what is the meaning of while (t–) in this code

My code

// Solution as follows

#include <bits/stdc++.h>
using namespace std;

int main() 
{
 int t;
 //accept the count of test cases given in the the 1st line
 cin>>t;
 //Run a loop to accept 't' inputs
while(t--)
 { 
   int A,B,C,D,E;
 //accept 2 integers on the 1st line of each test case
   cin>>A>>B;
 //accept 3 integers on the 1st line of each test case
   cin>>C>>D>>E;
 //output the 5 integers on a single line for each test case 
   cout<<A<<" "<<B<<" "<<C<<" "<<D<<" "<<E<<endl;
  }
 return 0;
}

Learning course: Learn C++
Problem Link: CodeChef: Practical coding for everyone

@saiswapnil
Its the test case loop which means u have to take inputs for the code t time and also output t time accordingly.