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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#93259 | #6132. Repair the Artwork | lam | RE | 3ms | 9604kb | C++14 | 1.5kb | 2023-03-31 15:56:03 | 2023-03-31 15:56:06 |
Judging History
answer
#include <bits/stdc++.h>
#define int long long
using namespace std;
const int maxn = 110LL;
const int mod = 1e9 + 7;
int n,m;
int a[maxn];
int lim[maxn];
int dp[maxn][maxn*maxn][2];
int ppow(int x, int y)
{
int temp=1LL;
while (y)
{
if (y&1) temp=temp*x%mod;
x=x*x%mod;
y/=2;
}
return temp;
}
void xuly()
{
cin>>n>>m;
for (int i=1; i<=n; i++) cin>>a[i];
a[0]=a[n+1]=1;
dp[0][0][1] = 1LL;
int mmax = 0;
lim[0] = 0;
for (int i=1,last=0; i<=n+1; i++)
{
lim[i] = lim[i-1]+(i-last)*(i-last-1)/2;
for (int j=0; j<=lim[i]; j++) dp[i][j][0] = dp[i][j][1] = 0LL;
for (int j=last; j<i; j++)
{
if (a[j]==0) continue;
int val = (i-j)*(i-j-1)/2;
for (int k=0; k<=lim[j]; k++)
for (int type=0; type<2; type++)
if (dp[j][k][type])
dp[i][k+val][type^1] = (dp[i][k+val][type^1] + dp[j][k][type])%mod;
}
if (a[i]==1) last=i;
}
int ans = 0;
int sum = 0;
for (int i=0; i<=n+1; i++) if (a[i]==1) sum++;
for (int j=0; j<=lim[n+1]; j++)
{
ans = (ans + (dp[n+1][j][0] - dp[n+1][j][1] + mod)%mod*ppow(j,m)%mod)%mod;
}
if (sum%2==1) ans = (mod-ans)%mod;
ans=(ans+mod)%mod;
cout<<ans<<'\n';
}
signed main()
{
ios_base::sync_with_stdio(false);
cin.tie(nullptr); cout.tie(nullptr);
int tt; cin>>tt;
while (tt--) xuly();
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 1ms
memory: 5356kb
input:
3 2 2 2 0 3 2 2 1 0 3 1 2 1 0
output:
8 3 1
result:
ok 3 number(s): "8 3 1"
Test #2:
score: 0
Accepted
time: 3ms
memory: 9604kb
input:
100 2 1 0 1 2 1 2 1 2 1 1 1 1 6 2 1 14 2 3 12 2 2 2 6 13 2 2 0 2 0 2 7 14 0 0 0 0 2 2 0 5 8 2 2 0 0 0 5 5 2 2 0 0 0 12 3 0 2 0 2 2 0 1 2 2 2 2 0 7 11 2 2 0 1 0 1 0 4 4 2 1 2 2 7 5 1 1 0 0 1 0 0 2 14 2 1 15 17 2 2 1 2 0 0 0 0 2 0 1 0 0 0 0 15 11 1 1 2 0 1 2 0 0 1 0 2 1 1 1 1 15 18 1 0 1 0 2 2 1 2 0 1...
output:
1 1 0 1 1 175715347 833406719 467966815 458805426 650344 2208 537089254 146 7776 1 703335050 123067364 355668256 487954758 53774922 544070885 436748805 369291507 760487845 513270785 501075264 487417783 464534262 979007529 137956839 143317512 648268264 851188473 702545117 946416372 595191705 35054850...
result:
ok 100 numbers
Test #3:
score: -100
Runtime Error
input:
1000 20 673037423 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 774964932 2 2 2 17 730319736 2 2 1 1 2 2 2 2 2 2 2 2 2 1 2 2 1 11 893285699 2 2 2 1 2 1 2 2 2 1 2 16 98149251 1 2 1 2 1 2 1 1 2 1 2 2 2 2 1 2 7 556953277 1 2 2 1 2 2 2 3 228111342 1 1 1 11 640995044 2 2 1 1 2 2 1 1 1 1 1 19 741419324 1 1 2 ...
output:
447486147 204414804 452414918 684654914 763978130 805973365 0 922180033 214948715 401017738 0 201368027 752718484 611006275 848004989 391560729 950934074 202096866 443534870 24665646 482580424 321199514 922369975 152629767 5546104 1 194145234 1 1 1 562381239 648246425 497517379 217016206 961507095 4...