#include <bits/stdc++.h>
using namespace std;
typedef pair<int, int> pii;
typedef long long ll;
const int MAXN = 100;
const int MXVAL = 505000;
int n;
ll target;
int cnt[2*MAXN+1];
int mx_use[MXVAL+1];
int main() {
ios_base::sync_with_stdio(false); cin.tie(NULL);
cin >> n >> target;
if (target > MXVAL) {
cout << "impossible\n";
return 0;
}
fill(mx_use, mx_use+MXVAL+1, -1);
mx_use[0] = 0;
for (int i = 0; i <= 2*n; i++) cin >> cnt[i];
for (int j = 1; j <= n; j++) {
for (int i = MXVAL; i >= j; i--) {
for (int p = 1; p <= cnt[n+j] && i-p*j >= 0; p++)
if (mx_use[i-p*j] >= 0) mx_use[i] = max(mx_use[i], mx_use[i-p*j]+p);
}
}
for (int j = 1; j <= n; j++) {
for (int i = target; i <= MXVAL-j; i++) {
for (int p = 1; p <= cnt[n-j] && i+p*j <= MXVAL; p++)
if (mx_use[i+p*j] >= 0) mx_use[i] = max(mx_use[i], mx_use[i+p*j]+p);
}
}
if (mx_use[target] == -1) {
cout << "impossible\n";
return 0;
}
cout << (mx_use[target]+cnt[n]) << "\n";
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
7 ms |
2260 KB |
Output is correct |
2 |
Correct |
6 ms |
2260 KB |
Output is correct |
3 |
Correct |
7 ms |
2260 KB |
Output is correct |
4 |
Correct |
30 ms |
2260 KB |
Output is correct |
5 |
Runtime error |
585 ms |
4452 KB |
Execution killed with signal 11 |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
7 ms |
2260 KB |
Output is correct |
2 |
Correct |
6 ms |
2260 KB |
Output is correct |
3 |
Correct |
7 ms |
2260 KB |
Output is correct |
4 |
Correct |
30 ms |
2260 KB |
Output is correct |
5 |
Runtime error |
585 ms |
4452 KB |
Execution killed with signal 11 |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
31 ms |
2260 KB |
Output is correct |
2 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
31 ms |
2260 KB |
Output is correct |
2 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
31 ms |
2260 KB |
Output is correct |
2 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
7 ms |
2260 KB |
Output is correct |
2 |
Correct |
6 ms |
2260 KB |
Output is correct |
3 |
Correct |
7 ms |
2260 KB |
Output is correct |
4 |
Correct |
30 ms |
2260 KB |
Output is correct |
5 |
Runtime error |
585 ms |
4452 KB |
Execution killed with signal 11 |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
31 ms |
2260 KB |
Output is correct |
2 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
7 ms |
2260 KB |
Output is correct |
2 |
Correct |
6 ms |
2260 KB |
Output is correct |
3 |
Correct |
7 ms |
2260 KB |
Output is correct |
4 |
Correct |
30 ms |
2260 KB |
Output is correct |
5 |
Runtime error |
585 ms |
4452 KB |
Execution killed with signal 11 |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
31 ms |
2260 KB |
Output is correct |
2 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
7 ms |
2260 KB |
Output is correct |
2 |
Correct |
6 ms |
2260 KB |
Output is correct |
3 |
Correct |
7 ms |
2260 KB |
Output is correct |
4 |
Correct |
30 ms |
2260 KB |
Output is correct |
5 |
Runtime error |
585 ms |
4452 KB |
Execution killed with signal 11 |
6 |
Halted |
0 ms |
0 KB |
- |