August 2017
Intermediate to advanced
360 pages
8h 35m
Chinese
Content preview from 算法技术手册（原书第2 版）
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EdgeInfo ei = it.next();
int v = ei.end;
//
如果还没有访问并且有剩余容量，那么就准备增加流。
if (vertices[v] == null && ei.capacity > ei.flow) {
vertices[v] = new VertexInfo (u, FORWARD);
if (v == sinkIndex) { return true; } //
找到增广路径。
path.insert (v); //
否则追加到队列尾。
}
}
it = struct[u].backward(); //
指向
u
的后向边。
while (it.hasNext()) {
//
尝试找到一条指向
u
的能够减少流的边。
EdgeInfo rei = it.next();
int v = rei.start;
//
是否还没有访问（不能是汇点！）并且能够减少流？
if(vertices[v] == null && rei.flow > 0) {
vertices[v] = new VertexInfo (u, BACKWARD);
path.insert (v); //
追加到队列尾。
}
}
}
return false; //
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.