mirror of
https://git.sb/baoshuo/OI-codes.git
synced 2024-12-25 17:12:02 +00:00
58 lines
1.3 KiB
C++
58 lines
1.3 KiB
C++
#include <iostream>
|
|
|
|
using std::cin;
|
|
using std::cout;
|
|
const char endl = '\n';
|
|
|
|
const int N = 15,
|
|
M = 0xfff + 5; // = (11111111111)2 + 5
|
|
const int mod = 1e8;
|
|
|
|
int m, n, a[N], f[N][M], ans;
|
|
bool s[M];
|
|
|
|
int main() {
|
|
std::ios::sync_with_stdio(false);
|
|
|
|
cin >> m >> n;
|
|
|
|
for (int i = 1; i <= m; i++) {
|
|
for (int j = 1, x; j <= n; j++) {
|
|
cin >> x;
|
|
a[i] <<= 1;
|
|
a[i] += x;
|
|
}
|
|
}
|
|
|
|
for (int i = 0; i < 0xfff; i++) {
|
|
// 行内不存在相邻的草地
|
|
if (!((i << 1) & i) && !((i >> 1) & i)) {
|
|
s[i] = true;
|
|
}
|
|
}
|
|
|
|
f[0][0] = 1;
|
|
for (int i = 1; i <= m; i++) {
|
|
// 当前行的状态
|
|
for (int j = 0; j < 0xfff; j++) {
|
|
// j 是合法的状态,且没有草被种在贫瘠的土地上
|
|
if (s[j] && (a[i] & j) == j) {
|
|
// 枚举上一行的状态
|
|
for (int k = 0; k < 0xfff; k++) {
|
|
if (!(k & j)) { // k 和 j 间不存在相邻的土地
|
|
f[i][j] = (f[i][j] + f[i - 1][k]) % mod;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
for (int i = 0; i < 0xfff; i++) {
|
|
ans = (ans + f[m][i]) % mod;
|
|
}
|
|
|
|
cout << ans << endl;
|
|
|
|
return 0;
|
|
}
|