oj.uz

답안 #158888

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
158888 2019-10-19T10:41:00 Z brcode Sure Bet (CEOI17_sure) C++14
100 / 100
 234 ms 5240 KB 
#include <iostream>
#include <algorithm>
#include <iomanip>
using namespace std;
const int MAXN = 3e5+5;
double a[MAXN];
double b[MAXN];
double prefa[MAXN];
double prefb[MAXN];
int pntr;
double ans=0.0;
int main(){
    int n;
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>a[i]>>b[i];
    }
    sort(a+1,a+n+1,greater<double>());
    sort(b+1,b+n+1,greater<double>());
    
    for(int i=1;i<=n;i++){
        prefa[i] = prefa[i-1]+a[i];
        prefb[i] = prefb[i-1]+b[i];
        
    }
    double prev = 0.0;
    for(int i=1;i<=n;i++){
        //cout<<pntr<<endl;
        prev = min(prefa[i]-pntr-i,prefb[pntr]-pntr-i);
        ans = max(ans,prev);
        
        while(pntr<n && min(prefa[i]-pntr-(double)1-(double)i,prefb[pntr+1]-pntr-(double)1-(double)i)>=(double)prev){
         //   cout<<min(prefa[i]-pntr-1-i,prefb[pntr+1]-pntr-1-i)<<" "<<prev<<endl;
            
            prev = min(prefa[i]-pntr-(double)1.0-(double)i,prefb[pntr+1]-pntr-(double)1.0-(double)i);
            pntr++;
        }
        ans = max(ans,prev);
        
    }
    cout << fixed << showpoint;

    cout<<std::setprecision(4)<<ans<<endl;
}

Subtask #1
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 380 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct

Subtask #2
40.0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 380 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 4 ms 376 KB Output is correct
13 Correct 4 ms 376 KB Output is correct
14 Correct 4 ms 376 KB Output is correct
15 Correct 4 ms 504 KB Output is correct
16 Correct 4 ms 376 KB Output is correct

Subtask #3
40.0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 380 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 4 ms 376 KB Output is correct
13 Correct 4 ms 376 KB Output is correct
14 Correct 4 ms 376 KB Output is correct
15 Correct 4 ms 504 KB Output is correct
16 Correct 4 ms 376 KB Output is correct
17 Correct 192 ms 4828 KB Output is correct
18 Correct 192 ms 4868 KB Output is correct
19 Correct 192 ms 4828 KB Output is correct
20 Correct 194 ms 4852 KB Output is correct
21 Correct 224 ms 5240 KB Output is correct
22 Correct 192 ms 4924 KB Output is correct
23 Correct 199 ms 4976 KB Output is correct
24 Correct 192 ms 4828 KB Output is correct
25 Correct 200 ms 4984 KB Output is correct
26 Correct 234 ms 5240 KB Output is correct