#include <bits/stdc++.h>
using namespace std;
long long dp[2][505000*2+1],arr[301],br = 505000,n,m;
signed main(){
ios_base::sync_with_stdio(false);cin.tie(0);
cin>>m>>n;
for(int i = 0;i<2*m+1;i++){
cin>>arr[i];
}
for(int i = 2*m+1;i>=0;i--){
for(int j = 0;j<=505000*2;j++){
if(i==2*m+1){
if(j==n+br){
dp[i&1][j] = 0;
}else{
dp[i&1][j] = -1e18;
}
continue;
}
long long ans = -1e18;
for(int e = 0;e<=arr[i];e++){
if(j+e*(i-m)<0||j+e*(i-m)>505000*2)continue;
ans = max(ans,dp[!(i&1)][j+e*(i-m)]+e);
}
dp[i&1][j] = ans;
}
}
long long vl = dp[0][505000];
if(vl<0)cout<<"impossible\n";
else cout<<vl<<endl;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
24 ms |
16220 KB |
Output is correct |
2 |
Correct |
20 ms |
16268 KB |
Output is correct |
3 |
Correct |
12 ms |
16220 KB |
Output is correct |
4 |
Correct |
79 ms |
16220 KB |
Output is correct |
5 |
Correct |
2185 ms |
16260 KB |
Output is correct |
6 |
Correct |
2315 ms |
16240 KB |
Output is correct |
7 |
Correct |
1010 ms |
16244 KB |
Output is correct |
8 |
Correct |
2222 ms |
16464 KB |
Output is correct |
9 |
Correct |
4162 ms |
16244 KB |
Output is correct |
10 |
Correct |
262 ms |
16240 KB |
Output is correct |
11 |
Correct |
227 ms |
16216 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
24 ms |
16220 KB |
Output is correct |
2 |
Correct |
20 ms |
16268 KB |
Output is correct |
3 |
Correct |
12 ms |
16220 KB |
Output is correct |
4 |
Correct |
79 ms |
16220 KB |
Output is correct |
5 |
Correct |
2185 ms |
16260 KB |
Output is correct |
6 |
Correct |
2315 ms |
16240 KB |
Output is correct |
7 |
Correct |
1010 ms |
16244 KB |
Output is correct |
8 |
Correct |
2222 ms |
16464 KB |
Output is correct |
9 |
Correct |
4162 ms |
16244 KB |
Output is correct |
10 |
Correct |
262 ms |
16240 KB |
Output is correct |
11 |
Correct |
227 ms |
16216 KB |
Output is correct |
12 |
Correct |
20 ms |
16220 KB |
Output is correct |
13 |
Correct |
20 ms |
16272 KB |
Output is correct |
14 |
Correct |
16 ms |
16272 KB |
Output is correct |
15 |
Correct |
82 ms |
16496 KB |
Output is correct |
16 |
Correct |
2178 ms |
16244 KB |
Output is correct |
17 |
Correct |
2368 ms |
16472 KB |
Output is correct |
18 |
Correct |
999 ms |
16260 KB |
Output is correct |
19 |
Correct |
2187 ms |
16468 KB |
Output is correct |
20 |
Correct |
4160 ms |
16248 KB |
Output is correct |
21 |
Correct |
254 ms |
16240 KB |
Output is correct |
22 |
Correct |
218 ms |
16220 KB |
Output is correct |
23 |
Execution timed out |
5054 ms |
16220 KB |
Time limit exceeded |
24 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
84 ms |
16220 KB |
Output is correct |
2 |
Execution timed out |
5042 ms |
16216 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
84 ms |
16220 KB |
Output is correct |
2 |
Execution timed out |
5042 ms |
16216 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
84 ms |
16220 KB |
Output is correct |
2 |
Execution timed out |
5042 ms |
16216 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
24 ms |
16220 KB |
Output is correct |
2 |
Correct |
20 ms |
16268 KB |
Output is correct |
3 |
Correct |
12 ms |
16220 KB |
Output is correct |
4 |
Correct |
79 ms |
16220 KB |
Output is correct |
5 |
Correct |
2185 ms |
16260 KB |
Output is correct |
6 |
Correct |
2315 ms |
16240 KB |
Output is correct |
7 |
Correct |
1010 ms |
16244 KB |
Output is correct |
8 |
Correct |
2222 ms |
16464 KB |
Output is correct |
9 |
Correct |
4162 ms |
16244 KB |
Output is correct |
10 |
Correct |
262 ms |
16240 KB |
Output is correct |
11 |
Correct |
227 ms |
16216 KB |
Output is correct |
12 |
Correct |
84 ms |
16220 KB |
Output is correct |
13 |
Execution timed out |
5042 ms |
16216 KB |
Time limit exceeded |
14 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
84 ms |
16220 KB |
Output is correct |
2 |
Execution timed out |
5042 ms |
16216 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
24 ms |
16220 KB |
Output is correct |
2 |
Correct |
20 ms |
16268 KB |
Output is correct |
3 |
Correct |
12 ms |
16220 KB |
Output is correct |
4 |
Correct |
79 ms |
16220 KB |
Output is correct |
5 |
Correct |
2185 ms |
16260 KB |
Output is correct |
6 |
Correct |
2315 ms |
16240 KB |
Output is correct |
7 |
Correct |
1010 ms |
16244 KB |
Output is correct |
8 |
Correct |
2222 ms |
16464 KB |
Output is correct |
9 |
Correct |
4162 ms |
16244 KB |
Output is correct |
10 |
Correct |
262 ms |
16240 KB |
Output is correct |
11 |
Correct |
227 ms |
16216 KB |
Output is correct |
12 |
Correct |
20 ms |
16220 KB |
Output is correct |
13 |
Correct |
20 ms |
16272 KB |
Output is correct |
14 |
Correct |
16 ms |
16272 KB |
Output is correct |
15 |
Correct |
82 ms |
16496 KB |
Output is correct |
16 |
Correct |
2178 ms |
16244 KB |
Output is correct |
17 |
Correct |
2368 ms |
16472 KB |
Output is correct |
18 |
Correct |
999 ms |
16260 KB |
Output is correct |
19 |
Correct |
2187 ms |
16468 KB |
Output is correct |
20 |
Correct |
4160 ms |
16248 KB |
Output is correct |
21 |
Correct |
254 ms |
16240 KB |
Output is correct |
22 |
Correct |
218 ms |
16220 KB |
Output is correct |
23 |
Execution timed out |
5054 ms |
16220 KB |
Time limit exceeded |
24 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
84 ms |
16220 KB |
Output is correct |
2 |
Execution timed out |
5042 ms |
16216 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
24 ms |
16220 KB |
Output is correct |
2 |
Correct |
20 ms |
16268 KB |
Output is correct |
3 |
Correct |
12 ms |
16220 KB |
Output is correct |
4 |
Correct |
79 ms |
16220 KB |
Output is correct |
5 |
Correct |
2185 ms |
16260 KB |
Output is correct |
6 |
Correct |
2315 ms |
16240 KB |
Output is correct |
7 |
Correct |
1010 ms |
16244 KB |
Output is correct |
8 |
Correct |
2222 ms |
16464 KB |
Output is correct |
9 |
Correct |
4162 ms |
16244 KB |
Output is correct |
10 |
Correct |
262 ms |
16240 KB |
Output is correct |
11 |
Correct |
227 ms |
16216 KB |
Output is correct |
12 |
Correct |
20 ms |
16220 KB |
Output is correct |
13 |
Correct |
20 ms |
16272 KB |
Output is correct |
14 |
Correct |
16 ms |
16272 KB |
Output is correct |
15 |
Correct |
82 ms |
16496 KB |
Output is correct |
16 |
Correct |
2178 ms |
16244 KB |
Output is correct |
17 |
Correct |
2368 ms |
16472 KB |
Output is correct |
18 |
Correct |
999 ms |
16260 KB |
Output is correct |
19 |
Correct |
2187 ms |
16468 KB |
Output is correct |
20 |
Correct |
4160 ms |
16248 KB |
Output is correct |
21 |
Correct |
254 ms |
16240 KB |
Output is correct |
22 |
Correct |
218 ms |
16220 KB |
Output is correct |
23 |
Execution timed out |
5054 ms |
16220 KB |
Time limit exceeded |
24 |
Halted |
0 ms |
0 KB |
- |