oj.uz

Submission #886982

# Submission time Handle Problem Language Result Execution time Memory
886982 2023-12-13T11:30:15 Z dubabuba Let's Win the Election (JOI22_ho_t3) C++14
23 / 100
 2500 ms 760 KB 
#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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory Grader output
1 Execution timed out 2567 ms 348 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory 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 -