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[11051] 이항 계수 2

Jcoder 2018. 7. 23. 20:52


#include <iostream>
using namespace std;
#define MAX 1001
int bin_coef_DP(int n, int k);
int C[MAX][MAX];
int main()
{
int n, k;
cin >> n >> k;
cout << bin_coef_DP(n, k) << endl;
return 0;
}
int bin_coef_DP(int n, int k)
{
int i, j;
C[0][0] = C[0][1] = C[1][0] = 1;
for (i = 1; i <= n; i++)
{
for (j = 0; j <= i; j++)
if (j == i || j == 0)
C[i][j] = 1;
else
C[i][j] = (C[i - 1][j - 1] + C[i - 1][j]) % 10007;
}
return C[n][k];
}