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12 lines
183 B
C
12 lines
183 B
C
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void combinations(unsigned int n, unsigned *A) {
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unsigned int i, t = 1;
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A[0] = A[n] = 1;
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for (i = 1; i <= n/2; i++) {
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t = (t * (n+1-i)) / i;
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A[i] = A[n-i] = t;
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}
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}
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