Submission #939854

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
939854	2024-03-06T20:28:38 Z	TAhmed33	Let's Win the Election (JOI22_ho_t3)	C++	0 / 100	800 ms	766076 KB

Main

#include <bits/stdc++.h>
using namespace std;
typedef long double ld;
int n, k, a[501], b[501];
ld dp[1 << 20][23];
ld recurse (int mask, int c, int l) {
	if (l == k) return 0;
	ld &ret = dp[mask][c];
	if (ret == ret) return ret;
	ret = 1e18;
	for (int i = 0; i < n; i++) {
		if (mask & (1 << i)) continue;
		ret = min(ret, 1.0 * a[i] / c + recurse(mask ^ (1 << i), c, l + 1));
	}
	int pos = -1, mx = 1e9;
	for (int i = 0; i < n; i++) {
		if (mask & (1 << i)) continue;
		if (b[i] != -1 && b[i] < mx) {
			mx = b[i]; pos = i;
		}
	}
	if (pos != -1) {
		ret = min(ret, 1.0 * b[pos] / c + recurse(mask ^ (1 << pos), c + 1, l + 1));
	}
	return ret;
}
int main () {
	memset(dp, -1, sizeof(dp));
	cin >> n >> k;
	for (int i = 0; i < n; i++) cin >> a[i] >> b[i];
	cout << fixed << setprecision(9) << recurse(0, 1, 0) << '\n';
}

Subtask #1

0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	143 ms	377796 KB	Output is correct
2	Correct	103 ms	377960 KB	Output is correct
3	Correct	102 ms	377912 KB	Output is correct
4	Correct	99 ms	377936 KB	Output is correct
5	Runtime error	800 ms	766076 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	143 ms	377796 KB	Output is correct
2	Correct	103 ms	377960 KB	Output is correct
3	Correct	102 ms	377912 KB	Output is correct
4	Correct	99 ms	377936 KB	Output is correct
5	Runtime error	800 ms	766076 KB	Execution killed with signal 11
6	Halted	0 ms	0 KB	-

Subtask #3

0 / 11.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	115 ms	377936 KB	Output is correct
2	Correct	102 ms	377936 KB	Output is correct
3	Correct	106 ms	377936 KB	Output is correct
4	Correct	94 ms	377948 KB	Output is correct
5	Correct	93 ms	377944 KB	Output is correct
6	Correct	93 ms	378204 KB	Output is correct
7	Correct	94 ms	377940 KB	Output is correct
8	Correct	94 ms	377940 KB	Output is correct
9	Incorrect	101 ms	377760 KB	Output isn't correct
10	Halted	0 ms	0 KB	-

Subtask #4

0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	115 ms	377936 KB	Output is correct
2	Correct	102 ms	377936 KB	Output is correct
3	Correct	106 ms	377936 KB	Output is correct
4	Correct	94 ms	377948 KB	Output is correct
5	Correct	93 ms	377944 KB	Output is correct
6	Correct	93 ms	378204 KB	Output is correct
7	Correct	94 ms	377940 KB	Output is correct
8	Correct	94 ms	377940 KB	Output is correct
9	Incorrect	101 ms	377760 KB	Output isn't correct
10	Halted	0 ms	0 KB	-

Subtask #5

0 / 33.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	115 ms	377936 KB	Output is correct
2	Correct	102 ms	377936 KB	Output is correct
3	Correct	106 ms	377936 KB	Output is correct
4	Correct	94 ms	377948 KB	Output is correct
5	Correct	93 ms	377944 KB	Output is correct
6	Correct	93 ms	378204 KB	Output is correct
7	Correct	94 ms	377940 KB	Output is correct
8	Correct	94 ms	377940 KB	Output is correct
9	Incorrect	101 ms	377760 KB	Output isn't correct
10	Halted	0 ms	0 KB	-

Subtask #6

0 / 11.0

#	Verdict	Execution time	Memory	Grader output
1	Runtime error	436 ms	766036 KB	Execution killed with signal 11
2	Halted	0 ms	0 KB	-

Subtask #7

0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	143 ms	377796 KB	Output is correct
2	Correct	103 ms	377960 KB	Output is correct
3	Correct	102 ms	377912 KB	Output is correct
4	Correct	99 ms	377936 KB	Output is correct
5	Runtime error	800 ms	766076 KB	Execution killed with signal 11
6	Halted	0 ms	0 KB	-