这个被置换而来的孩子，日后人生轨迹被更大的历史力量再次扭转。越南统一前，杜耀豪的外祖母在越南已建立起中产之家，生活优渥。她惦念着留在家乡刚成年的弟弟，计划将他接到越南，帮他改善生活。然而，1949年的政局剧变，隔断了姐弟团聚的迁移计划。
For example, a 500km route might be broken down into ~100 such shortcuts. If each A* shortcut calculation explores 100-1000 detailed road segments, the total detailed segments visited by A* might be around 10,000-50,000. Compare this to the 1,000,000+ segments the old A* might have needed for the entire route!
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characters each, onto the middle of the card. The machines didn't actually punch
automatically together with the stack frame itself. Stack allocations