$dp_{i,j,k,1}$ 还没转移捏
by liangbowen @ 2023-04-04 22:45:29
@[liangbowen](/user/367488) 改成这样了，还是不行：
```cpp
#include <bits/stdc++.h>
using namespace std;
#define MOD 1000000007
#define MAXN 801
int n, m, k, tmpa, tmpb, ans;
int a[MAXN][MAXN], f[MAXN][MAXN][16][2];
int main(){
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
cin >> n >> m >> k;
k++;
for (int i=1; i<=n; i++){
for (int j=1; j<=m; j++){
cin >> a[i][j];
a[i][j] %= k;
f[i][j][a[i][j]][0] = 1;
}
}
for (int i=1; i<=n; i++){
for (int j=1; j<=m; j++){
for (int l=0; l<k; l++){
tmpa = (l-a[i][j]+k)%k;
tmpb = (l+a[i][j]+k)%k;
f[i][j][l][0] += (f[i-1][j][tmpa][1] + f[i][j-1][tmpa][1]) % MOD;
f[i][j][l][1] += (f[i-1][j][tmpb][1] + f[i][j-1][tmpb][1]) % MOD;
if (!l) ans = (ans + f[i][j][l][1]) % MOD;
}
}
}
cout << ans;
return 0;
}
```
by rainygame @ 2023-04-05 07:48:32