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#include <cstdio> #include <cstring> #include <algorithm> #include <cstdlib> #include <string> #include <vector> using namespace std;
typedef long long LL; const int maxn = 210; const int maxk = 110; const int mod = 9901; int dp[maxn][maxk];
int main() { freopen("nocows.in", "r", stdin); freopen("nocows.out", "w", stdout); int n, k; scanf("%d%d", &n, &k); for (int i = 1; i <= k; ++i) { dp[1][i] = 1; } for (int i = 2; i <= n; ++i) { for (int j = 1; j <= k; ++j) { for (int l = 1; l <= i - 2; ++l) { dp[i][j] = (dp[i][j] + dp[l][j - 1] * dp[i - l - 1][j - 1]) % mod; } } } printf("%d\n", ((dp[n][k] - dp[n][k - 1]) % mod + mod) % mod); return 0; }
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