답안 #886982

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
886982	2023-12-13T11:30:15 Z	dubabuba	Let's Win the Election (JOI22_ho_t3)	C++14	23 / 100	2500 ms	760 KB

Main

#include <bits/stdc++.h>
using namespace std;

const int inf = 1e9 + 10;
const int mxn = 20;
int a[mxn], n;
int b[mxn], k;

vector<int> good;
vector<int> badd;

double ans = 1e9;
void solve(int map) {
	vector<int> vote = badd;
	vector<int> help;
	double ret = 0.0;

	for(int i = 0; i < good.size(); i++)
	if(map & (1 << i))
		help.push_back(good[i]);
	else
		vote.push_back(good[i]);

	if(help.size() > k) return;

	sort(help.begin(), help.end(), [&](int i, int j) { return b[i] < b[j]; });
	sort(vote.begin(), vote.end(), [&](int i, int j) { return a[i] < a[j]; });

	int helpers = 0;
	for(int i : help) {
		ret += 1.0 * b[i] / (1.0 + helpers);
		helpers++;
	}

	for(int j = 0; j < (k - help.size()); j++) {
		int i = vote[j];
		ret += 1.0 * a[i] / (1.0 + helpers);
	}

	ans = min(ans, ret);
}

int main() {
	cin >> n >> k;
	for(int i = 0; i < n; i++) {
		cin >> a[i] >> b[i];
		if(b[i] == -1) {
			b[i] = inf;
			badd.push_back(i);
		}
		else
			good.push_back(i);
	}

	for(int bit = 0; bit < (1 << good.size()); bit++)
		solve(bit);

	cout << setprecision(5) << fixed << ans << '\n';
	return 0;
}

Compilation message

Main.cpp: In function 'void solve(int)':
Main.cpp:18:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |  for(int i = 0; i < good.size(); i++)
      |                 ~~^~~~~~~~~~~~~
Main.cpp:24:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   24 |  if(help.size() > k) return;
      |     ~~~~~~~~~~~~^~~
Main.cpp:35:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |  for(int j = 0; j < (k - help.size()); j++) {
      |                 ~~^~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	440 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Runtime error	1 ms	604 KB	Execution killed with signal 11
6	Halted	0 ms	0 KB	-

Subtask #2
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	440 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Runtime error	1 ms	604 KB	Execution killed with signal 11
6	Halted	0 ms	0 KB	-

Subtask #3
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	0 ms	436 KB	Output is correct
6	Correct	1 ms	344 KB	Output is correct
7	Correct	0 ms	348 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	604 KB	Output is correct
12	Correct	0 ms	436 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 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	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	0 ms	436 KB	Output is correct
6	Correct	1 ms	344 KB	Output is correct
7	Correct	0 ms	348 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	604 KB	Output is correct
12	Correct	0 ms	436 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	287 ms	348 KB	Output is correct
17	Correct	355 ms	412 KB	Output is correct
18	Correct	43 ms	348 KB	Output is correct
19	Correct	442 ms	348 KB	Output is correct
20	Correct	31 ms	756 KB	Output is correct
21	Correct	6 ms	760 KB	Output is correct
22	Correct	450 ms	416 KB	Output is correct
23	Correct	28 ms	348 KB	Output is correct
24	Correct	2 ms	348 KB	Output is correct
25	Correct	476 ms	412 KB	Output is correct
26	Correct	115 ms	348 KB	Output is correct
27	Correct	450 ms	412 KB	Output is correct
28	Correct	440 ms	348 KB	Output is correct
29	Correct	454 ms	416 KB	Output is correct
30	Correct	452 ms	348 KB	Output is correct
31	Correct	446 ms	408 KB	Output is correct
32	Correct	452 ms	596 KB	Output is correct
33	Correct	445 ms	344 KB	Output is correct
34	Correct	442 ms	596 KB	Output is correct
35	Correct	439 ms	408 KB	Output is correct
36	Correct	449 ms	344 KB	Output is correct
37	Correct	447 ms	416 KB	Output is correct
38	Correct	435 ms	348 KB	Output is correct
39	Correct	475 ms	408 KB	Output is correct
40	Correct	448 ms	408 KB	Output is correct

Subtask #5
0 / 33.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	0 ms	436 KB	Output is correct
6	Correct	1 ms	344 KB	Output is correct
7	Correct	0 ms	348 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	604 KB	Output is correct
12	Correct	0 ms	436 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	287 ms	348 KB	Output is correct
17	Correct	355 ms	412 KB	Output is correct
18	Correct	43 ms	348 KB	Output is correct
19	Correct	442 ms	348 KB	Output is correct
20	Correct	31 ms	756 KB	Output is correct
21	Correct	6 ms	760 KB	Output is correct
22	Correct	450 ms	416 KB	Output is correct
23	Correct	28 ms	348 KB	Output is correct
24	Correct	2 ms	348 KB	Output is correct
25	Correct	476 ms	412 KB	Output is correct
26	Correct	115 ms	348 KB	Output is correct
27	Correct	450 ms	412 KB	Output is correct
28	Correct	440 ms	348 KB	Output is correct
29	Correct	454 ms	416 KB	Output is correct
30	Correct	452 ms	348 KB	Output is correct
31	Correct	446 ms	408 KB	Output is correct
32	Correct	452 ms	596 KB	Output is correct
33	Correct	445 ms	344 KB	Output is correct
34	Correct	442 ms	596 KB	Output is correct
35	Correct	439 ms	408 KB	Output is correct
36	Correct	449 ms	344 KB	Output is correct
37	Correct	447 ms	416 KB	Output is correct
38	Correct	435 ms	348 KB	Output is correct
39	Correct	475 ms	408 KB	Output is correct
40	Correct	448 ms	408 KB	Output is correct
41	Incorrect	7 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	Execution timed out	2567 ms	348 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #7
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	440 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Runtime error	1 ms	604 KB	Execution killed with signal 11
6	Halted	0 ms	0 KB	-

답안 #886982

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