#include <bits/stdc++.h>
using namespace std;
int n, k;
bool vis[505][505][505];
double DP[505][505][505], inf = 1e12, cans = inf;
pair<int, int> dat[505];
int main() {
DP[0][0][0] = 0; vis[0][0][0] = 1;
cin >> n >> k;
int bc = n;
for(int i=0;i<n;i++) {
cin >> dat[i].first >> dat[i].second;
if(dat[i].second == -1) bc--, dat[i].second = INT_MAX;
}
sort(dat, dat+n);
double frfr = 1e12;
do {
for(int i=0;i<=n;i++) {
for(int j=0;j<=k;j++) {
for(int K=0;K<=bc;K++) {
if(i == j && j == K && !i) continue;
if(i == 0 || j<K) {DP[i][j][K] = inf; continue;}
DP[i][j][K] = DP[i-1][j][K];
if(j) DP[i][j][K] = min(DP[i][j][K], DP[i-1][j-1][K] + (1.00*dat[i-1].first/(K+1)));
if(j && K && dat[i-1].second != INT_MAX) DP[i][j][K] = min(DP[i][j][K], DP[i-1][j-1][K-1] + (1.00*dat[i-1].second/K));
}
}
}
for(int i=0;i<=bc;i++) cans = min(cans, DP[n][k][i]);
frfr = min(frfr, cans);
} while (next_permutation(dat, dat+n));
cout << frfr;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Execution timed out |
2593 ms |
102988 KB |
Time limit exceeded |
6 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Execution timed out |
2593 ms |
102988 KB |
Time limit exceeded |
6 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
340 KB |
Output is correct |
2 |
Correct |
2 ms |
340 KB |
Output is correct |
3 |
Correct |
3 ms |
468 KB |
Output is correct |
4 |
Correct |
6 ms |
404 KB |
Output is correct |
5 |
Correct |
5 ms |
468 KB |
Output is correct |
6 |
Correct |
7 ms |
468 KB |
Output is correct |
7 |
Correct |
7 ms |
596 KB |
Output is correct |
8 |
Correct |
5 ms |
468 KB |
Output is correct |
9 |
Correct |
5 ms |
468 KB |
Output is correct |
10 |
Correct |
5 ms |
468 KB |
Output is correct |
11 |
Correct |
5 ms |
468 KB |
Output is correct |
12 |
Correct |
5 ms |
468 KB |
Output is correct |
13 |
Correct |
5 ms |
468 KB |
Output is correct |
14 |
Correct |
1 ms |
468 KB |
Output is correct |
15 |
Correct |
7 ms |
596 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
340 KB |
Output is correct |
2 |
Correct |
2 ms |
340 KB |
Output is correct |
3 |
Correct |
3 ms |
468 KB |
Output is correct |
4 |
Correct |
6 ms |
404 KB |
Output is correct |
5 |
Correct |
5 ms |
468 KB |
Output is correct |
6 |
Correct |
7 ms |
468 KB |
Output is correct |
7 |
Correct |
7 ms |
596 KB |
Output is correct |
8 |
Correct |
5 ms |
468 KB |
Output is correct |
9 |
Correct |
5 ms |
468 KB |
Output is correct |
10 |
Correct |
5 ms |
468 KB |
Output is correct |
11 |
Correct |
5 ms |
468 KB |
Output is correct |
12 |
Correct |
5 ms |
468 KB |
Output is correct |
13 |
Correct |
5 ms |
468 KB |
Output is correct |
14 |
Correct |
1 ms |
468 KB |
Output is correct |
15 |
Correct |
7 ms |
596 KB |
Output is correct |
16 |
Execution timed out |
2573 ms |
724 KB |
Time limit exceeded |
17 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
340 KB |
Output is correct |
2 |
Correct |
2 ms |
340 KB |
Output is correct |
3 |
Correct |
3 ms |
468 KB |
Output is correct |
4 |
Correct |
6 ms |
404 KB |
Output is correct |
5 |
Correct |
5 ms |
468 KB |
Output is correct |
6 |
Correct |
7 ms |
468 KB |
Output is correct |
7 |
Correct |
7 ms |
596 KB |
Output is correct |
8 |
Correct |
5 ms |
468 KB |
Output is correct |
9 |
Correct |
5 ms |
468 KB |
Output is correct |
10 |
Correct |
5 ms |
468 KB |
Output is correct |
11 |
Correct |
5 ms |
468 KB |
Output is correct |
12 |
Correct |
5 ms |
468 KB |
Output is correct |
13 |
Correct |
5 ms |
468 KB |
Output is correct |
14 |
Correct |
1 ms |
468 KB |
Output is correct |
15 |
Correct |
7 ms |
596 KB |
Output is correct |
16 |
Execution timed out |
2573 ms |
724 KB |
Time limit exceeded |
17 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2571 ms |
994508 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Execution timed out |
2593 ms |
102988 KB |
Time limit exceeded |
6 |
Halted |
0 ms |
0 KB |
- |