Submission #570764

#	Time	Username	Problem	Language	Result	Execution time	Memory
570764		choigameautohackrb	Sure Bet (CEOI17_sure)	C++17	60 / 100	6 ms	468 KiB

sure

#include <bits/stdc++.h>
#define fi first
#define se second
using namespace std;
typedef long long ll;
typedef long double ld;
const ll N=1e3+7;
ld tmpA, tmpB, ans, a[N], b[N], PreA[N], PreB[N];
ll tmp, n;
bool maximize(ld &a, ld b){
    if (a<b){
        a=b;
        return 1;
    } else return 0;
}
int main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin>>n;
    for (int i=1;i<=n;i++) cin>>a[i]>>b[i];
    sort(a+1, a+1+n, greater<ld>());
    sort(b+1, b+1+n, greater<ld>());
    for (int i=1;i<=n;i++){
        PreA[i]=PreA[i-1]+a[i];
        PreB[i]=PreB[i-1]+b[i];
    }
    for (int i=1;i<=n;i++)
    for (int j=1;j<=n;j++){
        tmp=i+j; tmpA=PreA[i]-tmp;   tmpB=PreB[j]-tmp;
        maximize(ans, min(tmpA, tmpB));
    }
    cout<<fixed<<setprecision(4)<<ans;
    return 0;
}

• Subtask 1: 20 / 20
• Subtask 2: 40 / 40
• Subtask 3: 0 / 40