Number Steps
Given below code is for nsteps spoj or number steps spoj.
#include <bits/stdc++.h> using namespace std; int main(){ int t; cin>>t; while(t--){ int x , y; cin>>x>>y; if(y > x or y < (x - 2) or y == x - 1){ cout<<"No Number\n"; continue; } if( (x&1) && (y&1)){ // ((x&1) is true when x is odd cout<<x+y-1<<endl; continue; } cout<<x+y<<endl; } return 0; }