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求教高手 cmp函数int cmp(const void *a, const void *b) { return (*(edge *)a).len > (*(edge *)b).len; } int cmp(const void *a, const void *b) { return (*(edge *)a).len > (*(edge *)b).len ? 1 : -1; } 这两种有区别吗,为什么我第一种是WA,第二种是AC呢?其它部分都一样啊。 Followed by:
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