Simple about the problem! Sos

Source: Internet
Author: User
Simple question! Urgent sos!


One side has no weight, can you ask "the earliest possible start time of each activity"?
Now I'm using the "Critical path" Method!
This is chief's "algorithm and data structure C language description"
After-school application questions.
It's time to get stuck here!
Just do not know that there is an edge do not know the right value, can ask me to ask!


------Solution--------------------
The weight of the unknown edge is between 2 and 4.
------Solution--------------------
I found this a bit of an egg ache.
------Solution--------------------
At first blush, I think it's 1-3. 1-2 Chance Max ...
Lost the light.
------Solution--------------------
No, please help me with the top one.

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