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这个题能不能不把等式变为不等式？？d[a]-d[b]==x必须转化为：d[b]<=d[a]-x和d[a]<=d[b]+x吗？？ 形式：if(d[v]>d[u]+dis) d[v]=d[u]+dis;在读入字符为P时能否改为d[v]!=d[u]+dis.... Followed by: Post your reply here: |
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