QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #734025 | #8049. Equal Sums | ucup-team4479 | WA | 1650ms | 990120kb | C++23 | 1.4kb | 2024-11-10 23:09:23 | 2024-11-10 23:09:23 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
constexpr int N=505,M=500;
constexpr int MOD=1000000007;
int n,m;
int la[N],ra[N],lb[N],rb[N];
int poolf[N][N][M+M+1],*f[N][N];
int ans[N][N];
int main()
{
ios::sync_with_stdio(false);
cin.tie(nullptr),cout.tie(nullptr);
cin>>n>>m;
for(int i=1;i<=n;i++)
cin>>la[i]>>ra[i];
for(int i=1;i<=m;i++)
cin>>lb[i]>>rb[i];
for(int i=0;i<=n;i++)
for(int j=0;j<=m;j++)
f[i][j]=&poolf[i][j][M];
f[0][0][0]=1;
for(int i=0;i<=n;i++)
for(int j=0;j<=m;j++)
{
for(int k=-M;k<=M;k++)
{
if(i>=1)
{
int l=max(k-ra[i],-M),r=min(k-la[i],0);
if(l<=r) f[i][j][k]=((long long)f[i][j][k]+f[i-1][j][r]-(l>-M?f[i-1][j][l-1]:0)+MOD)%MOD;
}
if(j>=1)
{
int l=max(k+lb[j],1),r=min(k+rb[j],M);
if(l<=r) f[i][j][k]=((long long)f[i][j][k]+f[i][j-1][r]-f[i][j-1][l-1]+MOD)%MOD;
}
if(k==0) ans[i][j]=f[i][j][k];
if(k>-M) f[i][j][k]=(f[i][j][k]+f[i][j][k-1])%MOD;
}
}
for(int i=1;i<=n;i++)
{
for(int j=1;j<=m;j++)
cout<<ans[i][j]<<" ";
cout<<"\n";
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 7800kb
input:
2 3 1 2 2 3 1 4 2 2 1 3
output:
2 0 0 3 4 4
result:
ok 6 numbers
Test #2:
score: -100
Wrong Answer
time: 1650ms
memory: 990120kb
input:
500 500 19 458 1 480 7 485 50 461 12 476 15 461 48 466 40 453 46 467 9 458 27 478 26 472 46 459 29 490 6 500 17 487 48 484 28 472 28 459 25 480 4 491 29 481 36 460 2 491 44 499 22 473 20 458 4 483 27 471 2 496 11 461 43 450 2 478 37 466 15 459 42 482 7 451 19 455 2 453 47 475 48 450 1 474 46 471 9 4...
output:
411 79401 9145270 673005095 120888829 334105 345764276 421120311 260411339 442237148 376746015 621546890 989741096 990914509 80513204 849630640 611259822 530689761 177100 21 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ...
result:
wrong answer 5th numbers differ - expected: '180581065', found: '120888829'