Subset sum problem: Difference between revisions
Content added Content deleted
(+ second D entry) |
m (→{{header|C}}) |
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#include <stdlib.h> |
#include <stdlib.h> |
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typedef struct { char* data; int weight; } item; |
typedef struct { const char* data; int weight; } item; |
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typedef struct { int sum; unsigned int mask; } sum_t; |
typedef struct { int sum; unsigned int mask; } sum_t; |
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int cmp_sums(const void *a, const void *b) |
int cmp_sums(const void *a, const void *b) |
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{ |
{ |
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return ((sum_t*)a)->sum - ((sum_t*)b)->sum; |
return ((const sum_t*)a)->sum - ((const sum_t*)b)->sum; |
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} |
} |
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sum_t *mksums(item *p, int n, int shift) |
sum_t *mksums(const item *p, int n, int shift) |
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{ |
{ |
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sum_t *r = malloc(sizeof(*r) * (1 << n)); |
sum_t *r = malloc(sizeof(*r) * (1 << n)); |
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