mirror of
https://github.com/Kiritow/OJ-Problems-Source.git
synced 2024-03-22 13:11:29 +08:00
51 lines
1.4 KiB
C++
51 lines
1.4 KiB
C++
#include<iostream>
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#include<cstdio>
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#include<math.h>
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#include<cstring>
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#define MP make_pair
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#define SQ(x) ((x)*(x))
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typedef long long int64;
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const double PI = acos(-1.0);
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const int MAXN = 110;
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const int INF = 0x3f3f3f3f;
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using namespace std;
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const int MOD = 1000000007;
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int n, m;
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int f[2][480][22][2];
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int mat[480][480];
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char str[1000];
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int main(){
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int nCase, cas=1;
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scanf("%d", &nCase);
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while(nCase--){
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scanf("%d%d%*c", &n, &m);
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for(int i=1; i<=n; ++i){
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gets(str);
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for(int j=1; j<=m; ++j)
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mat[i][j] = str[j-1]-'0';
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}
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memset(f, 0, sizeof(f));
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int ans = 0;
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bool p = 0;
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for(int i=1; i<=n; ++i){
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p = !p;
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memset(f[p], 0, sizeof(f[p]));
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for(int j=1; j<=m; ++j){
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for(int k=0; k<=10; ++k){
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int x1 = (k+mat[i][j])%11;
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int x2 = (k-mat[i][j]+11)%11;
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f[p][j][k][0] += ((f[!p][j][x1][1]+f[p][j-1][x1][1])%MOD)%MOD;
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f[p][j][k][1] += ((f[!p][j][x2][0]+f[p][j-1][x2][0])%MOD)%MOD;
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}
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++f[p][j][11-mat[i][j]][0];
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}
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for(int j=1; j<=m; ++j){
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ans += (f[p][j][0][0] + f[p][j][0][1])%MOD;
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ans %= MOD;
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}
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}
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printf("Case %d: %d\n",cas++, ans);
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}
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return 0;
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}
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