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delete pics to save space

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happyZYM
2023-08-03 09:22:52 +08:00
commit de60cd6ed4
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1.1373.cpp Normal file
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#include<cstdio>
#include<cstring>
#include<algorithm>
using namespace std;
const int maxn=805;
const int mod=1e9+7;
int n,m,p,a[maxn][maxn],f[maxn][maxn][20][2];
int main()
{
#ifdef local
freopen("pro.in","r",stdin);
#endif
scanf("%d%d%d",&n,&m,&p); p++;
for(int i=1;i<=n;i++) for(int j=1;j<=m;j++) scanf("%d",&a[i][j]);
for(int i=1;i<=n;i++) for(int j=1;j<=m;j++) f[i][j][a[i][j]%p][0]=1;
for(int i=1;i<=n;i++) for(int j=1;j<=m;j++) for(int k=0;k<p;k++)
{
int v=f[i][j][k][0];
(f[i+1][j][((k-a[i+1][j])%p+p)%p][1]+=v)%=mod;
(f[i][j+1][((k-a[i][j+1])%p+p)%p][1]+=v)%=mod;
v=f[i][j][k][1];
(f[i+1][j][(k+a[i+1][j])%p][0]+=v)%=mod;
(f[i][j+1][(k+a[i][j+1])%p][0]+=v)%=mod;
}
int res=0;
for(int i=1;i<=n;i++) for(int j=1;j<=m;j++) (res+=f[i][j][0][1])%=mod;
printf("%d\n",res);
return 0;
}