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