[CF1311A] Add Odd or Subtract Even

Solution

a<b, delta=odd, ans=1

a<b, delta=even, ans=2

a=b ans=0

a>b, delta=odd, ans=2

a>b, delta=even, ans=1

#include <bits/stdc++.h>

using namespace std;

signed main() {

    int t,a,b;

    ios::sync_with_stdio(false);

    cin>>t;

    while(t--) {

        cin>>a>>b;

        if(a<b) {

            if((b-a)%2) cout<<1<<endl;

            else cout<<2<<endl;

        }

        else if(a==b) cout<<0<<endl;

        else {

            if((b-a)%2) cout<<2<<endl;

            else cout<<1<<endl;

        }

    }

}

巴特西

[CF1311A] Add Odd or Subtract Even

Solution

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