PRACLIST - Editorial

editorial
, , ,
1

PROBLEM LINK:

Contest Division 1
Contest Division 2
Contest Division 3
Contest Division 4

Setter: Hrishikesh
Tester: Harris Leung
Editorialist: Trung Dang

DIFFICULTY:

264

PREREQUISITES:

None

PROBLEM:

Our Chef is currently practicing on CodeChef and is a beginner. The count of ‘All Problems’ in the Beginner section is X. Our Chef has already ‘Attempted’ Y problems among them. How many problems are yet ‘Un-attempted’?

EXPLANATION:

Answer is X - Y.

TIME COMPLEXITY:

Time complexity is O(1).

SOLUTION:

Setter's Solution 
//tt89 ;)
#include <iostream>
using namespace std;

int x,y;

int main() {
    // your code goes here
    cin>>x>>y;
    cout<<x-y<<"\n";
    return 0;
}
Tester's Solution 
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define fi first
#define se second
ll n;
void solve(int rr){
    cin >> n;
    int ans=0;
    for(int i=1; i<=n ;i++){
        int x;cin >> x;ans+=(x>=1000);
    }
    cout << ans << '\n';
}
int main(){
    ios::sync_with_stdio(false);cin.tie(0);
    ll x,y;cin >> x >> y;
    cout << x-y << '\n';
}
Editorialist's Solution 
#include <bits/stdc++.h>
using namespace std;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int a, b; cin >> a >> b; cout << a - b;
}