#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(a, b) for(int a = 0; a < (b); ++a)
#define st first
#define nd second
#define pb push_back
#define all(a) a.begin(), a.end()
const ll INF=1e18+7;
const ll LIM=1e6+7;
vector<int>V[LIM];
ll dp[LIM], dp2[LIM], A[LIM], B[LIM], l[LIM], sz[LIM];
int main() {
ios_base::sync_with_stdio(0); cin.tie(0);
ll n, m;
cin >> n >> m;
rep(i, n) cin >> A[n-i];
rep(i, n+1) cin >> B[i];
ll ans=0;
rep(i, n+1) ans+=B[i];
rep(i, n+1) ans+=A[i];
rep(i, n+1) m+=A[i]*(ll)i;
rep(i, n+1) m-=B[i]*(ll)i;
if(m<0) {
m*=-1;
rep(i, n+1) swap(A[i], B[i]);
}
rep(i, LIM) dp[i]=INF;
dp[0]=0;
int ile=1;
for(ll i=n; i; --i) {
if(m>=LIM/2) {
ll p=m-LIM/2;
p=(p+i-1)/i;
p=min(p, max(A[i]-300/ile, 0ll));
A[i]-=p;
if(A[i]) ++ile;
dp[0]+=p;
m-=p*i;
}
}
if(m>=LIM) {
cout << "impossible\n";
return 0;
}
for(int i=1; i<=n; ++i) rep(j, LIM/i+1) V[i-1].pb(0);
rep(xd, 2) {
for(ll i=1; i<=n; ++i) if(A[i]) {
rep(j, i) l[j]=sz[j]=0;
rep(j, LIM-LIM/2*xd) {
ll p=j%i;
while(l[p]<sz[p] && (j-V[p][l[p]])/i>A[i]) ++l[p];
while(sz[p]>0 && dp[j]<=dp[V[p][sz[p]-1]]+(j-V[p][sz[p]-1])/i) {
--sz[p];
l[p]=min(l[p], sz[p]);
}
dp2[j]=dp[j];
if(l[p]<sz[p]) dp2[j]=min(dp2[j], dp[V[p][l[p]]]+(j-V[p][l[p]])/i);
V[p][sz[p]]=j;
++sz[p];
}
rep(j, LIM) dp[j]=dp2[j];
}
rep(i, LIM/2) swap(dp[i], dp[LIM-i-1]);
rep(i, n+1) swap(A[i], B[i]);
}
if(dp[m]==INF) {
cout << "impossible\n";
return 0;
}
cout << ans-dp[m] << '\n';
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
45 ms |
53960 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
45 ms |
53960 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
117 ms |
58060 KB |
Output is correct |
2 |
Correct |
420 ms |
62200 KB |
Output is correct |
3 |
Correct |
132 ms |
62156 KB |
Output is correct |
4 |
Correct |
430 ms |
62396 KB |
Output is correct |
5 |
Correct |
434 ms |
62200 KB |
Output is correct |
6 |
Correct |
479 ms |
62136 KB |
Output is correct |
7 |
Correct |
46 ms |
62040 KB |
Output is correct |
8 |
Correct |
71 ms |
61960 KB |
Output is correct |
9 |
Correct |
278 ms |
62404 KB |
Output is correct |
10 |
Correct |
311 ms |
62156 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
117 ms |
58060 KB |
Output is correct |
2 |
Correct |
420 ms |
62200 KB |
Output is correct |
3 |
Correct |
132 ms |
62156 KB |
Output is correct |
4 |
Correct |
430 ms |
62396 KB |
Output is correct |
5 |
Correct |
434 ms |
62200 KB |
Output is correct |
6 |
Correct |
479 ms |
62136 KB |
Output is correct |
7 |
Correct |
46 ms |
62040 KB |
Output is correct |
8 |
Correct |
71 ms |
61960 KB |
Output is correct |
9 |
Correct |
278 ms |
62404 KB |
Output is correct |
10 |
Correct |
311 ms |
62156 KB |
Output is correct |
11 |
Incorrect |
41 ms |
53968 KB |
Output isn't correct |
12 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
117 ms |
58060 KB |
Output is correct |
2 |
Correct |
420 ms |
62200 KB |
Output is correct |
3 |
Correct |
132 ms |
62156 KB |
Output is correct |
4 |
Correct |
430 ms |
62396 KB |
Output is correct |
5 |
Correct |
434 ms |
62200 KB |
Output is correct |
6 |
Correct |
479 ms |
62136 KB |
Output is correct |
7 |
Correct |
46 ms |
62040 KB |
Output is correct |
8 |
Correct |
71 ms |
61960 KB |
Output is correct |
9 |
Correct |
278 ms |
62404 KB |
Output is correct |
10 |
Correct |
311 ms |
62156 KB |
Output is correct |
11 |
Correct |
115 ms |
58176 KB |
Output is correct |
12 |
Correct |
425 ms |
62200 KB |
Output is correct |
13 |
Correct |
132 ms |
62400 KB |
Output is correct |
14 |
Correct |
432 ms |
62200 KB |
Output is correct |
15 |
Correct |
427 ms |
62396 KB |
Output is correct |
16 |
Correct |
454 ms |
62204 KB |
Output is correct |
17 |
Correct |
45 ms |
62152 KB |
Output is correct |
18 |
Correct |
74 ms |
62200 KB |
Output is correct |
19 |
Correct |
271 ms |
62160 KB |
Output is correct |
20 |
Correct |
307 ms |
62924 KB |
Output is correct |
21 |
Correct |
42 ms |
63936 KB |
Output is correct |
22 |
Correct |
71 ms |
64140 KB |
Output is correct |
23 |
Correct |
726 ms |
64144 KB |
Output is correct |
24 |
Correct |
318 ms |
63952 KB |
Output is correct |
25 |
Correct |
728 ms |
64080 KB |
Output is correct |
26 |
Correct |
722 ms |
63952 KB |
Output is correct |
27 |
Correct |
766 ms |
63944 KB |
Output is correct |
28 |
Correct |
546 ms |
63952 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
45 ms |
53960 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
117 ms |
58060 KB |
Output is correct |
2 |
Correct |
420 ms |
62200 KB |
Output is correct |
3 |
Correct |
132 ms |
62156 KB |
Output is correct |
4 |
Correct |
430 ms |
62396 KB |
Output is correct |
5 |
Correct |
434 ms |
62200 KB |
Output is correct |
6 |
Correct |
479 ms |
62136 KB |
Output is correct |
7 |
Correct |
46 ms |
62040 KB |
Output is correct |
8 |
Correct |
71 ms |
61960 KB |
Output is correct |
9 |
Correct |
278 ms |
62404 KB |
Output is correct |
10 |
Correct |
311 ms |
62156 KB |
Output is correct |
11 |
Correct |
115 ms |
58176 KB |
Output is correct |
12 |
Correct |
425 ms |
62200 KB |
Output is correct |
13 |
Correct |
132 ms |
62400 KB |
Output is correct |
14 |
Correct |
432 ms |
62200 KB |
Output is correct |
15 |
Correct |
427 ms |
62396 KB |
Output is correct |
16 |
Correct |
454 ms |
62204 KB |
Output is correct |
17 |
Correct |
45 ms |
62152 KB |
Output is correct |
18 |
Correct |
74 ms |
62200 KB |
Output is correct |
19 |
Correct |
271 ms |
62160 KB |
Output is correct |
20 |
Correct |
307 ms |
62924 KB |
Output is correct |
21 |
Correct |
42 ms |
63936 KB |
Output is correct |
22 |
Correct |
71 ms |
64140 KB |
Output is correct |
23 |
Correct |
726 ms |
64144 KB |
Output is correct |
24 |
Correct |
318 ms |
63952 KB |
Output is correct |
25 |
Correct |
728 ms |
64080 KB |
Output is correct |
26 |
Correct |
722 ms |
63952 KB |
Output is correct |
27 |
Correct |
766 ms |
63944 KB |
Output is correct |
28 |
Correct |
546 ms |
63952 KB |
Output is correct |
29 |
Correct |
110 ms |
58064 KB |
Output is correct |
30 |
Correct |
423 ms |
62152 KB |
Output is correct |
31 |
Correct |
133 ms |
62200 KB |
Output is correct |
32 |
Correct |
416 ms |
62916 KB |
Output is correct |
33 |
Correct |
420 ms |
61956 KB |
Output is correct |
34 |
Correct |
443 ms |
62160 KB |
Output is correct |
35 |
Correct |
42 ms |
63032 KB |
Output is correct |
36 |
Correct |
71 ms |
62928 KB |
Output is correct |
37 |
Correct |
280 ms |
62144 KB |
Output is correct |
38 |
Correct |
296 ms |
62160 KB |
Output is correct |
39 |
Correct |
53 ms |
64140 KB |
Output is correct |
40 |
Correct |
67 ms |
65036 KB |
Output is correct |
41 |
Correct |
696 ms |
64136 KB |
Output is correct |
42 |
Correct |
315 ms |
63940 KB |
Output is correct |
43 |
Correct |
769 ms |
64136 KB |
Output is correct |
44 |
Correct |
702 ms |
64140 KB |
Output is correct |
45 |
Correct |
739 ms |
63900 KB |
Output is correct |
46 |
Correct |
537 ms |
63952 KB |
Output is correct |
47 |
Correct |
47 ms |
67012 KB |
Output is correct |
48 |
Correct |
78 ms |
67008 KB |
Output is correct |
49 |
Correct |
1477 ms |
67020 KB |
Output is correct |
50 |
Correct |
629 ms |
67012 KB |
Output is correct |
51 |
Correct |
1446 ms |
67860 KB |
Output is correct |
52 |
Correct |
1476 ms |
67012 KB |
Output is correct |
53 |
Correct |
1453 ms |
67024 KB |
Output is correct |
54 |
Correct |
1254 ms |
67012 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
45 ms |
53960 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
117 ms |
58060 KB |
Output is correct |
2 |
Correct |
420 ms |
62200 KB |
Output is correct |
3 |
Correct |
132 ms |
62156 KB |
Output is correct |
4 |
Correct |
430 ms |
62396 KB |
Output is correct |
5 |
Correct |
434 ms |
62200 KB |
Output is correct |
6 |
Correct |
479 ms |
62136 KB |
Output is correct |
7 |
Correct |
46 ms |
62040 KB |
Output is correct |
8 |
Correct |
71 ms |
61960 KB |
Output is correct |
9 |
Correct |
278 ms |
62404 KB |
Output is correct |
10 |
Correct |
311 ms |
62156 KB |
Output is correct |
11 |
Correct |
115 ms |
58176 KB |
Output is correct |
12 |
Correct |
425 ms |
62200 KB |
Output is correct |
13 |
Correct |
132 ms |
62400 KB |
Output is correct |
14 |
Correct |
432 ms |
62200 KB |
Output is correct |
15 |
Correct |
427 ms |
62396 KB |
Output is correct |
16 |
Correct |
454 ms |
62204 KB |
Output is correct |
17 |
Correct |
45 ms |
62152 KB |
Output is correct |
18 |
Correct |
74 ms |
62200 KB |
Output is correct |
19 |
Correct |
271 ms |
62160 KB |
Output is correct |
20 |
Correct |
307 ms |
62924 KB |
Output is correct |
21 |
Correct |
42 ms |
63936 KB |
Output is correct |
22 |
Correct |
71 ms |
64140 KB |
Output is correct |
23 |
Correct |
726 ms |
64144 KB |
Output is correct |
24 |
Correct |
318 ms |
63952 KB |
Output is correct |
25 |
Correct |
728 ms |
64080 KB |
Output is correct |
26 |
Correct |
722 ms |
63952 KB |
Output is correct |
27 |
Correct |
766 ms |
63944 KB |
Output is correct |
28 |
Correct |
546 ms |
63952 KB |
Output is correct |
29 |
Correct |
110 ms |
58064 KB |
Output is correct |
30 |
Correct |
423 ms |
62152 KB |
Output is correct |
31 |
Correct |
133 ms |
62200 KB |
Output is correct |
32 |
Correct |
416 ms |
62916 KB |
Output is correct |
33 |
Correct |
420 ms |
61956 KB |
Output is correct |
34 |
Correct |
443 ms |
62160 KB |
Output is correct |
35 |
Correct |
42 ms |
63032 KB |
Output is correct |
36 |
Correct |
71 ms |
62928 KB |
Output is correct |
37 |
Correct |
280 ms |
62144 KB |
Output is correct |
38 |
Correct |
296 ms |
62160 KB |
Output is correct |
39 |
Correct |
53 ms |
64140 KB |
Output is correct |
40 |
Correct |
67 ms |
65036 KB |
Output is correct |
41 |
Correct |
696 ms |
64136 KB |
Output is correct |
42 |
Correct |
315 ms |
63940 KB |
Output is correct |
43 |
Correct |
769 ms |
64136 KB |
Output is correct |
44 |
Correct |
702 ms |
64140 KB |
Output is correct |
45 |
Correct |
739 ms |
63900 KB |
Output is correct |
46 |
Correct |
537 ms |
63952 KB |
Output is correct |
47 |
Correct |
47 ms |
67012 KB |
Output is correct |
48 |
Correct |
78 ms |
67008 KB |
Output is correct |
49 |
Correct |
1477 ms |
67020 KB |
Output is correct |
50 |
Correct |
629 ms |
67012 KB |
Output is correct |
51 |
Correct |
1446 ms |
67860 KB |
Output is correct |
52 |
Correct |
1476 ms |
67012 KB |
Output is correct |
53 |
Correct |
1453 ms |
67024 KB |
Output is correct |
54 |
Correct |
1254 ms |
67012 KB |
Output is correct |
55 |
Correct |
105 ms |
58172 KB |
Output is correct |
56 |
Correct |
410 ms |
62156 KB |
Output is correct |
57 |
Correct |
131 ms |
62356 KB |
Output is correct |
58 |
Correct |
425 ms |
62160 KB |
Output is correct |
59 |
Correct |
422 ms |
62400 KB |
Output is correct |
60 |
Correct |
455 ms |
62148 KB |
Output is correct |
61 |
Correct |
42 ms |
62160 KB |
Output is correct |
62 |
Correct |
67 ms |
62156 KB |
Output is correct |
63 |
Correct |
269 ms |
61972 KB |
Output is correct |
64 |
Correct |
299 ms |
62200 KB |
Output is correct |
65 |
Correct |
44 ms |
63948 KB |
Output is correct |
66 |
Correct |
67 ms |
63940 KB |
Output is correct |
67 |
Correct |
702 ms |
63940 KB |
Output is correct |
68 |
Correct |
314 ms |
63940 KB |
Output is correct |
69 |
Correct |
703 ms |
64136 KB |
Output is correct |
70 |
Correct |
707 ms |
64144 KB |
Output is correct |
71 |
Correct |
737 ms |
63940 KB |
Output is correct |
72 |
Correct |
541 ms |
63948 KB |
Output is correct |
73 |
Correct |
45 ms |
66824 KB |
Output is correct |
74 |
Correct |
76 ms |
67860 KB |
Output is correct |
75 |
Correct |
1436 ms |
67028 KB |
Output is correct |
76 |
Correct |
621 ms |
67024 KB |
Output is correct |
77 |
Correct |
1495 ms |
67008 KB |
Output is correct |
78 |
Correct |
1504 ms |
67024 KB |
Output is correct |
79 |
Correct |
1451 ms |
67068 KB |
Output is correct |
80 |
Correct |
1239 ms |
67016 KB |
Output is correct |
81 |
Correct |
4336 ms |
71820 KB |
Output is correct |
82 |
Correct |
2019 ms |
71616 KB |
Output is correct |
83 |
Correct |
4477 ms |
71820 KB |
Output is correct |
84 |
Correct |
4348 ms |
71828 KB |
Output is correct |
85 |
Correct |
52 ms |
72656 KB |
Output is correct |
86 |
Correct |
74 ms |
71624 KB |
Output is correct |
87 |
Correct |
3946 ms |
71816 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
45 ms |
53960 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |