Educational Codeforces Round 124 (Rated for Div. 2) 1651A. Playoff Solution

 

Problem Link:https://codeforces.com/contest/1651/problem/A

Solution in C++:

///La ilaha illellahu muhammadur rasulullah

///******Bismillahir-Rahmanir-Rahim******///

///Abul Hasnat  Tonmoy

///Department of CSE,23rd batch

///Islamic University,Bangladesh

#include<iostream>

#include<math.h>

using namespace std;

int main()

{

    int test,num,ans,i;

    cin>> test;

    for(i=0; i<test; i++)

    {

        cin>>num;

        ans=pow(2,num);

        cout<<ans-1<<endl;

    }

}