#include <bits/stdc++.h>
#define int long long
using namespace std;
const int INF=1e18;
int M, L, A[210], D[1200010];
signed main() {
ios_base::sync_with_stdio(0); cin.tie(0);
cin>>M>>L;
for(int i=0; i<=2*M; i++) cin>>A[i];
for(int j=0; j<=1200000; j++) D[j]=-INF;
D[600000]=0;
for(int i=-M; i<=M; i++) {
int t=0;
for(int k=0; k<=5; k++) if(A[i+M]>=(1<<(k+1))-1) {
t=(1<<(k+1))-1;
if(i>0) for(int j=1200000; j>=(i<<k); j--) D[j]=max(D[j], D[j-(i<<k)]+(1<<k));
else for(int j=0; j<=1200000+(i<<k); j++) D[j]=max(D[j], D[j-(i<<k)]+(1<<k));
}
t=A[i+M]-t;
if(!t) continue;
if(i>0) for(int j=1200000; j>=t; j--) D[j]=max(D[j], D[j-i*t]+t);
else for(int j=0; j<=1200000+i*t; j++) D[j]=max(D[j], D[j-i*t]+t);
}
if(abs(L)<=600000 && D[600000+L]>=0) cout<<D[600000+L]<<"\n";
else cout<<"impossible";
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
10 ms |
9820 KB |
Output is correct |
2 |
Correct |
11 ms |
9820 KB |
Output is correct |
3 |
Correct |
6 ms |
9820 KB |
Output is correct |
4 |
Correct |
25 ms |
9816 KB |
Output is correct |
5 |
Correct |
340 ms |
9820 KB |
Output is correct |
6 |
Correct |
362 ms |
9820 KB |
Output is correct |
7 |
Correct |
146 ms |
9816 KB |
Output is correct |
8 |
Correct |
364 ms |
9816 KB |
Output is correct |
9 |
Correct |
418 ms |
9820 KB |
Output is correct |
10 |
Correct |
16 ms |
9816 KB |
Output is correct |
11 |
Correct |
16 ms |
9848 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
10 ms |
9820 KB |
Output is correct |
2 |
Correct |
11 ms |
9820 KB |
Output is correct |
3 |
Correct |
6 ms |
9820 KB |
Output is correct |
4 |
Correct |
25 ms |
9816 KB |
Output is correct |
5 |
Correct |
340 ms |
9820 KB |
Output is correct |
6 |
Correct |
362 ms |
9820 KB |
Output is correct |
7 |
Correct |
146 ms |
9816 KB |
Output is correct |
8 |
Correct |
364 ms |
9816 KB |
Output is correct |
9 |
Correct |
418 ms |
9820 KB |
Output is correct |
10 |
Correct |
16 ms |
9816 KB |
Output is correct |
11 |
Correct |
16 ms |
9848 KB |
Output is correct |
12 |
Correct |
11 ms |
9820 KB |
Output is correct |
13 |
Correct |
9 ms |
9820 KB |
Output is correct |
14 |
Correct |
7 ms |
9820 KB |
Output is correct |
15 |
Correct |
27 ms |
9848 KB |
Output is correct |
16 |
Correct |
346 ms |
9828 KB |
Output is correct |
17 |
Correct |
361 ms |
9820 KB |
Output is correct |
18 |
Correct |
148 ms |
9816 KB |
Output is correct |
19 |
Correct |
343 ms |
9816 KB |
Output is correct |
20 |
Correct |
419 ms |
9824 KB |
Output is correct |
21 |
Correct |
16 ms |
9816 KB |
Output is correct |
22 |
Correct |
16 ms |
9852 KB |
Output is correct |
23 |
Correct |
771 ms |
9832 KB |
Output is correct |
24 |
Correct |
763 ms |
9832 KB |
Output is correct |
25 |
Correct |
309 ms |
9820 KB |
Output is correct |
26 |
Incorrect |
934 ms |
9824 KB |
Output isn't correct |
27 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
25 ms |
9820 KB |
Output is correct |
2 |
Incorrect |
112 ms |
9816 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
25 ms |
9820 KB |
Output is correct |
2 |
Incorrect |
112 ms |
9816 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
25 ms |
9820 KB |
Output is correct |
2 |
Incorrect |
112 ms |
9816 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
10 ms |
9820 KB |
Output is correct |
2 |
Correct |
11 ms |
9820 KB |
Output is correct |
3 |
Correct |
6 ms |
9820 KB |
Output is correct |
4 |
Correct |
25 ms |
9816 KB |
Output is correct |
5 |
Correct |
340 ms |
9820 KB |
Output is correct |
6 |
Correct |
362 ms |
9820 KB |
Output is correct |
7 |
Correct |
146 ms |
9816 KB |
Output is correct |
8 |
Correct |
364 ms |
9816 KB |
Output is correct |
9 |
Correct |
418 ms |
9820 KB |
Output is correct |
10 |
Correct |
16 ms |
9816 KB |
Output is correct |
11 |
Correct |
16 ms |
9848 KB |
Output is correct |
12 |
Correct |
25 ms |
9820 KB |
Output is correct |
13 |
Incorrect |
112 ms |
9816 KB |
Output isn't correct |
14 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
25 ms |
9820 KB |
Output is correct |
2 |
Incorrect |
112 ms |
9816 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
10 ms |
9820 KB |
Output is correct |
2 |
Correct |
11 ms |
9820 KB |
Output is correct |
3 |
Correct |
6 ms |
9820 KB |
Output is correct |
4 |
Correct |
25 ms |
9816 KB |
Output is correct |
5 |
Correct |
340 ms |
9820 KB |
Output is correct |
6 |
Correct |
362 ms |
9820 KB |
Output is correct |
7 |
Correct |
146 ms |
9816 KB |
Output is correct |
8 |
Correct |
364 ms |
9816 KB |
Output is correct |
9 |
Correct |
418 ms |
9820 KB |
Output is correct |
10 |
Correct |
16 ms |
9816 KB |
Output is correct |
11 |
Correct |
16 ms |
9848 KB |
Output is correct |
12 |
Correct |
11 ms |
9820 KB |
Output is correct |
13 |
Correct |
9 ms |
9820 KB |
Output is correct |
14 |
Correct |
7 ms |
9820 KB |
Output is correct |
15 |
Correct |
27 ms |
9848 KB |
Output is correct |
16 |
Correct |
346 ms |
9828 KB |
Output is correct |
17 |
Correct |
361 ms |
9820 KB |
Output is correct |
18 |
Correct |
148 ms |
9816 KB |
Output is correct |
19 |
Correct |
343 ms |
9816 KB |
Output is correct |
20 |
Correct |
419 ms |
9824 KB |
Output is correct |
21 |
Correct |
16 ms |
9816 KB |
Output is correct |
22 |
Correct |
16 ms |
9852 KB |
Output is correct |
23 |
Correct |
771 ms |
9832 KB |
Output is correct |
24 |
Correct |
763 ms |
9832 KB |
Output is correct |
25 |
Correct |
309 ms |
9820 KB |
Output is correct |
26 |
Incorrect |
934 ms |
9824 KB |
Output isn't correct |
27 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
25 ms |
9820 KB |
Output is correct |
2 |
Incorrect |
112 ms |
9816 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
10 ms |
9820 KB |
Output is correct |
2 |
Correct |
11 ms |
9820 KB |
Output is correct |
3 |
Correct |
6 ms |
9820 KB |
Output is correct |
4 |
Correct |
25 ms |
9816 KB |
Output is correct |
5 |
Correct |
340 ms |
9820 KB |
Output is correct |
6 |
Correct |
362 ms |
9820 KB |
Output is correct |
7 |
Correct |
146 ms |
9816 KB |
Output is correct |
8 |
Correct |
364 ms |
9816 KB |
Output is correct |
9 |
Correct |
418 ms |
9820 KB |
Output is correct |
10 |
Correct |
16 ms |
9816 KB |
Output is correct |
11 |
Correct |
16 ms |
9848 KB |
Output is correct |
12 |
Correct |
11 ms |
9820 KB |
Output is correct |
13 |
Correct |
9 ms |
9820 KB |
Output is correct |
14 |
Correct |
7 ms |
9820 KB |
Output is correct |
15 |
Correct |
27 ms |
9848 KB |
Output is correct |
16 |
Correct |
346 ms |
9828 KB |
Output is correct |
17 |
Correct |
361 ms |
9820 KB |
Output is correct |
18 |
Correct |
148 ms |
9816 KB |
Output is correct |
19 |
Correct |
343 ms |
9816 KB |
Output is correct |
20 |
Correct |
419 ms |
9824 KB |
Output is correct |
21 |
Correct |
16 ms |
9816 KB |
Output is correct |
22 |
Correct |
16 ms |
9852 KB |
Output is correct |
23 |
Correct |
771 ms |
9832 KB |
Output is correct |
24 |
Correct |
763 ms |
9832 KB |
Output is correct |
25 |
Correct |
309 ms |
9820 KB |
Output is correct |
26 |
Incorrect |
934 ms |
9824 KB |
Output isn't correct |
27 |
Halted |
0 ms |
0 KB |
- |