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답안 #220141

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
220141 2020-04-07T06:19:22 Z MKopchev Sure Bet (CEOI17_sure) C++14
100 / 100
 196 ms 3576 KB 
#include<bits/stdc++.h>
using namespace std;
const int nmax=1e5+42;
int n;
double a[nmax],b[nmax];
int main()
{
    cin>>n;
    for(int i=1;i<=n;i++)cin>>a[i]>>b[i];

    sort(a+1,a+n+1);
    sort(b+1,b+n+1);

    int i=n,j=n;

    double sum_a=0,sum_b=0,ret=0;

    while(i>=1||j>=1)
    {
        if(i==0){sum_b+=b[j];j--;}
        else if(j==0){sum_a+=a[i];i--;}
        else
        {
            if(sum_a<sum_b){sum_a+=a[i];i--;}
            else {sum_b+=b[j];j--;}
        }
        ret=max(ret,min(sum_a,sum_b)-(n-i)-(n-j));

        //cout<<sum_a<<" "<<sum_b<<" "<<i<<" "<<j<<" "<<min(sum_a,sum_b)-(n-i)-(n-j)<<endl;
    }

    printf("%.4f",ret);
    return 0;
}

Subtask #1
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 256 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 256 KB Output is correct

Subtask #2
40.0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 256 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 6 ms 384 KB Output is correct
13 Correct 6 ms 384 KB Output is correct
14 Correct 6 ms 384 KB Output is correct
15 Correct 6 ms 384 KB Output is correct
16 Correct 6 ms 384 KB Output is correct

Subtask #3
40.0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 256 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 6 ms 384 KB Output is correct
13 Correct 6 ms 384 KB Output is correct
14 Correct 6 ms 384 KB Output is correct
15 Correct 6 ms 384 KB Output is correct
16 Correct 6 ms 384 KB Output is correct
17 Correct 180 ms 3264 KB Output is correct
18 Correct 173 ms 3192 KB Output is correct
19 Correct 185 ms 3192 KB Output is correct
20 Correct 189 ms 3320 KB Output is correct
21 Correct 195 ms 3576 KB Output is correct
22 Correct 174 ms 3192 KB Output is correct
23 Correct 180 ms 3448 KB Output is correct
24 Correct 175 ms 3192 KB Output is correct
25 Correct 173 ms 3192 KB Output is correct
26 Correct 196 ms 3576 KB Output is correct