SAVWATER- Editorial

editorial
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1

PROBLEM LINK:

Practice
Div-3 Contest
Div-2 Contest
Div-1 Contest

Setter: Daanish Mahajan
Tester: Ashish Vishal

DIFFICULTY:

Cake-Walk

PREREQUISITES:

Math

PROBLEM:

Given H,X,Y,C. H-Total Numbers of Households. X,Y:- (X+floor(Y/2)) liters of water is consumed per week per Household. C:- Available water for a week. Find whether all the households can now have sufficient water to meet their requirements.

EXPLANATION:

If (X+floor(Y/2))\times H is less than or equal to C then print “YES” otherwise Print “NO”.

SOLUTIONS:

Tester's Solution 
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define is insert
#define rep1(i,a,b) for(long long i=a;i<=b;i++)
#define F first
#define S second
#define file ifstream fin("input.txt");ofstream fout("output.txt");
#define fast ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define fr(n) for(long long i=0;i<n;i++)
#define rep(i,a,b) for(long long i=a;i<b;i++)
#define ALL(x) (x).begin(), (x).end()
typedef long long int ll;
typedef long double ld;
typedef vector<ll> vi;
 
bool compare(pair<ll,ll>&a,pair<ll,ll>&b)
{
    if (a.first != b.first) {
      return a.first < b.first;
    }
    return a.second > b.second;
}
 
void solve()
{
    ll h,x,y,c;
 
    cin>>h>>x>>y>>c;
    assert(h>=1&&h<=10&&y>=1&&y<=10&&x>=1&&x<=10);
 
    y/=2;
    ll use=h*(x+y);
    (use<=c)?cout<<"YES\n":cout<<"NO\n";
 
}
 
int32_t main()
{
    #ifndef ONLINE_JUDGE
    freopen("inputf.in", "r", stdin);
    freopen("outputf.in", "w", stdout);
    #endif
    fast;
 
 
    ll t=1;
    assert(t>=1&&t<=300);
 
    cin>>t; 
    while(t--)                        
    solve();
    return 0;
}
2 
int main()
{
    int T;
    cin >> T; 
    for(int i=1; i<=T; i++){
        int H,x,y,C;
        
        cin>> H >> x >> y >> C;
        
         int check; 
        check = ((x/2)+y)*H;
        
        if(check <= C){
            cout<< "YES";
        }
        
        else{
            cout<< "NO";
        }
    }
}

i m getting the wrong answer what could be the issue the out put matches

3

Sir, can i get its explanation? Please!