답안 #863840

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
863840	2023-10-21T08:53:59 Z	prairie2022	Let's Win the Election (JOI22_ho_t3)	C++17	23 / 100	378 ms	548 KB

Main

#include<bits/stdc++.h>
typedef long double ld;
#define fastio cin.tie(0), cout.tie(0), ios::sync_with_stdio(0);
using namespace std;

#define F first 
#define S second

int main(){
    //fastio
    const int big = 1e6;
    int n, k;
    ld ans = big;
    cin >> n >> k;
    vector<pair<int, int>> ba(n);
    for(int i=0; i<n; i++){
        cin >> ba[i].S >> ba[i].F;
        if(ba[i].F==-1) ba[i].F = big;
    }
    sort(ba.begin(), ba.end());
    if(n>20) return 0;
    for(int mask = 0; mask<(1<<n); mask++){
        bool flag = 0;
        vector<int> b, a;
        for(int i=0; i<n; i++){
            if(mask&(1<<i)){
                if(ba[i].F==big){
                    flag = 1;
                    break;
                }
                b.push_back(ba[i].F);
            }
            else a.push_back(ba[i].S);
        }
        if(flag || b.size()>=k) break;
        sort(a.begin(), a.end());
        ld tmp = 0;
        for(int i=0; i<b.size(); i++)
            tmp += ((ld)b[i])/(1+i);
        for(int i=0; i<k-b.size(); i++){
            tmp += ((ld)a[i])/(1+b.size());
        }
        ans = min(tmp, ans);
    }
    cout << fixed << setprecision(6) << ans << '\n';
    return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:35:28: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   35 |         if(flag || b.size()>=k) break;
      |                    ~~~~~~~~^~~
Main.cpp:38:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |         for(int i=0; i<b.size(); i++)
      |                      ~^~~~~~~~~
Main.cpp:40:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |         for(int i=0; i<k-b.size(); i++){
      |                      ~^~~~~~~~~~~

Subtask #1
0 / 5.0

#	결과	메모리	Grader output
1	Correct	344 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	348 KB	Output is correct
4	Correct	348 KB	Output is correct
5	Incorrect	348 KB	Output isn't correct
6	Halted	0 KB	-

Subtask #2
0 / 5.0

#	결과	메모리	Grader output
1	Correct	344 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	348 KB	Output is correct
4	Correct	348 KB	Output is correct
5	Incorrect	348 KB	Output isn't correct
6	Halted	0 KB	-

Subtask #3
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	0 ms	344 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	436 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	1 ms	348 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	1 ms	344 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct

Subtask #4
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	0 ms	344 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	436 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	1 ms	348 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	1 ms	344 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	4 ms	348 KB	Output is correct
20	Correct	3 ms	348 KB	Output is correct
21	Correct	3 ms	432 KB	Output is correct
22	Correct	7 ms	348 KB	Output is correct
23	Correct	6 ms	432 KB	Output is correct
24	Correct	2 ms	344 KB	Output is correct
25	Correct	378 ms	428 KB	Output is correct
26	Correct	98 ms	348 KB	Output is correct
27	Correct	4 ms	548 KB	Output is correct
28	Correct	6 ms	348 KB	Output is correct
29	Correct	4 ms	348 KB	Output is correct
30	Correct	7 ms	348 KB	Output is correct
31	Correct	3 ms	344 KB	Output is correct
32	Correct	6 ms	348 KB	Output is correct
33	Correct	4 ms	348 KB	Output is correct
34	Correct	4 ms	348 KB	Output is correct
35	Correct	6 ms	348 KB	Output is correct
36	Correct	3 ms	348 KB	Output is correct
37	Correct	6 ms	432 KB	Output is correct
38	Correct	3 ms	348 KB	Output is correct
39	Correct	5 ms	348 KB	Output is correct
40	Correct	3 ms	348 KB	Output is correct

Subtask #5
0 / 33.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	0 ms	344 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	436 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	1 ms	348 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	1 ms	344 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	4 ms	348 KB	Output is correct
20	Correct	3 ms	348 KB	Output is correct
21	Correct	3 ms	432 KB	Output is correct
22	Correct	7 ms	348 KB	Output is correct
23	Correct	6 ms	432 KB	Output is correct
24	Correct	2 ms	344 KB	Output is correct
25	Correct	378 ms	428 KB	Output is correct
26	Correct	98 ms	348 KB	Output is correct
27	Correct	4 ms	548 KB	Output is correct
28	Correct	6 ms	348 KB	Output is correct
29	Correct	4 ms	348 KB	Output is correct
30	Correct	7 ms	348 KB	Output is correct
31	Correct	3 ms	344 KB	Output is correct
32	Correct	6 ms	348 KB	Output is correct
33	Correct	4 ms	348 KB	Output is correct
34	Correct	4 ms	348 KB	Output is correct
35	Correct	6 ms	348 KB	Output is correct
36	Correct	3 ms	348 KB	Output is correct
37	Correct	6 ms	432 KB	Output is correct
38	Correct	3 ms	348 KB	Output is correct
39	Correct	5 ms	348 KB	Output is correct
40	Correct	3 ms	348 KB	Output is correct
41	Incorrect	1 ms	348 KB	Output isn't correct
42	Halted	0 ms	0 KB	-

Subtask #6
0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	0 ms	348 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #7
0 / 23.0

#	결과	메모리	Grader output
1	Correct	344 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	348 KB	Output is correct
4	Correct	348 KB	Output is correct
5	Incorrect	348 KB	Output isn't correct
6	Halted	0 KB	-

답안 #863840

Compilation message

Subtask #1 0 / 5.0

Subtask #2 0 / 5.0

Subtask #3 11.0 / 11.0

Subtask #4 12.0 / 12.0

Subtask #5 0 / 33.0

Subtask #6 0 / 11.0

Subtask #7 0 / 23.0

Subtask #1
0 / 5.0

Subtask #2
0 / 5.0

Subtask #3
11.0 / 11.0

Subtask #4
12.0 / 12.0

Subtask #5
0 / 33.0

Subtask #6
0 / 11.0

Subtask #7
0 / 23.0