Function main

CodeChef_problems/UNITGCD/solution.cpp:25–50

using namespace std;

int main()
{
    int t; // no of test cases
    cin>>t; 
    while(t--){ 
        int n; // no of pages
        cin>>n;
        
        if(n==1){
            cout<<1<<"\n"; /* no of days required to read the book */
            cout<<1<<" "<<1<<"\n";
        }
        else if(!(n & 1)){  /* n is even */
            cout<<n/2<<"\n"; /* no of days required to read the book */
            for(int i=1;i<=n/2;i++) 
            cout<<2<<" "<<2*i-1<<" "<<2*i<<"\n";
        }
        else{
            cout<<n/2<<"\n"; /* no of days required to read the book */
            cout<<3<<" "<<1<<" "<<2<<" "<<3<<"\n"; 
            for(int i=2;i<=n/2;i++) 
            cout<<2<<" "<<2*i<<" "<<2*i+1<<"\n";
        }
    }
    return 0;
}