Submission #1225778

#	Time	Username	Problem	Language	Result	Execution time	Memory
1225778		lukasuliashvili	Sure Bet (CEOI17_sure)	C++20	100 / 100	98 ms	1980 KiB

sure

#include<bits/stdc++.h>
#define int long long
#define rep(i,a,b) for(int i=a;i<=b;i++)
using namespace std;
const int N=100005;
double a[N],b[N];
int n,c1,c2;
double s1,s2,res;
signed main(){
    cin>>n;
    rep(i,1,n) cin>>a[i]>>b[i];
    sort(a+1,a+n+1);reverse(a+1,a+n+1);
    sort(b+1,b+n+1);reverse(b+1,b+n+1);
    while(true){
        if(c1>=n and c2>=n){
             break;
        }
        if(c1>=n){
            c2++;
            s2+=b[c2];
        }else if(c2>=n){
            c1++;
            s1+=a[c1];
        }else if(s1<=s2){
            c1++;
            s1+=a[c1];
        }else{
            c2++;
            s2+=b[c2];
        }
        res=max(res,min(s1,s2)-c1-c2);
    }
    cout<<fixed<<setprecision(4)<<res<<endl;
}

• Subtask 1: 20 / 20
• Subtask 2: 40 / 40
• Subtask 3: 40 / 40