#include <stdio.h>
#define LLI long long int
#define SZ 2000
LLI n, k, C[SZ][SZ],i, j;
int main(int argc, char const *argv[]) {
n = 7;
k = 4;
C[0][0] = 1;
for(i = 1; i <= n; ++i) {
for(j = 0; j <= i; ++j) {
if(0 == j || i == j) C[i][j] = 1;
else
C[i][j] = C[i-1][j-1] + C[i-1][j];
}
}
for(i = 0; i <= n; ++i) {
for(j = 0; j <= i; ++j) {
}
}
return 0;
}
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