Solve of UVA 12602: Nice Licence Plates

Solve of UVA 12602: Nice Licence Plates

#include<bits/stdc++.h>

using namespace std;

int main()

{

    long long int a,b,c,d,e,f;

    char x[3]={'\0'},z;

    cin>>a;

    while(a--)

    {

        scanf("%3s-%lld",x,&b);

        c=(x[0]-65)*676 + (x[1]-65)*26 + (x[2]-65)*1;

        d=c-b;

        if(d<0) d*=-1;

        if(d<=100) cout<<"nice"<<endl;

        else cout<<"not nice"<<endl;

    }

    return 0;

}