oj.uz

답안 #860325

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
860325 2023-10-12T15:20:46 Z vjudge1 Sure Bet (CEOI17_sure) C++17
100 / 100
 79 ms 3168 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#define float double
#define endl "\n"
using namespace std;
bool f(float a, float b){
    return a>b;
}
int binarySearch(vector<float>&arr, int l, int r, float x){
    if(arr[l]>=x)
        return l;
    if(arr[l+1]>=x)
        return l;
    if(arr[r]<=x)
        return r-1;
    while (l < r) {
        if(l+1==r)
            return l;
        int m = (l+r) / 2;
        if(arr[m]<=x && arr[m+1]>=x)
            return m;
        if (arr[m+1] < x)
            l = m;
        else
            r = m;
    }
    return -1;
}
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    float n;
    cin>>n;
    vector<float>a(n);
    vector<float>b(n);
    for(float i=0;i<n;i++){
        cin>>a[i]>>b[i];
    }
    sort(a.begin(),a.end(),f);
    sort(b.begin(),b.end(),f);
    vector<float>b_pref;
    float s=0;
    b_pref.push_back(0);
    for(float i=0;i<n;i++){
        s+=b[i];
        b_pref.push_back(s);
    }
    s=0;
    float score=0;
    for(float i=0;i<n;i++){
        s+=a[i];
        float j=binarySearch(b_pref,0,n,s);
        float s1=min(s,b_pref[j])-i-j-1;
        float s2=min(s,b_pref[j+1])-i-j-2;
        score=max(score,s2);
        score=max(score,s1);
    }
    printf("%.4lf",(float)score);
}

Subtask #1
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct

Subtask #2
40.0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 2 ms 348 KB Output is correct

Subtask #3
40.0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 2 ms 348 KB Output is correct
17 Correct 76 ms 3028 KB Output is correct
18 Correct 73 ms 3024 KB Output is correct
19 Correct 73 ms 3024 KB Output is correct
20 Correct 73 ms 3032 KB Output is correct
21 Correct 79 ms 3168 KB Output is correct
22 Correct 74 ms 3024 KB Output is correct
23 Correct 73 ms 3028 KB Output is correct
24 Correct 73 ms 3164 KB Output is correct
25 Correct 73 ms 3024 KB Output is correct
26 Correct 75 ms 3168 KB Output is correct