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int *rowcnt (cs *A, int *parent, int *post) /* return rowcount [0..n-1] */
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int i, j, k, len, s, p, jprev, q, n, sparent, jleaf, *Ap, *Ai, *maxfirst,
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int i, j, k, p, q, n, jleaf, *Ap, *Ai, *maxfirst,
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*ancestor, *prevleaf, *w, *first, *level, *rowcount ;
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n = A->n ; Ap = A->p ; Ai = A->i ; /* get A */
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w = cs_malloc (5*n, sizeof (int)) ; /* get workspace */