D. Cycle Free Flow SOLUTIONS

Cycle Free Flow SOLUTION Codeforces

You are given an undirected associated weighted chart of n hubs which contains no cycles. For q various sets of hubs, we might want you to locate the most extreme stream from the principal hub in the pair to the second hub in the pair. See the definition for max stream beneath in the event that you don’t have the foggiest idea what it implies. 
 
Likewise, if you don’t mind answer these questions on the web. Initially, I was going to drive you to do this by scrambling stuff, however that would make this issue harder to peruse and additionally irritating. Along these lines, honestly, kindly answer the main question before perusing the subsequent inquiry, and whatnot. All things considered, this is simply practice for you to show signs of improvement, isn’t that so? 
 
The most extreme stream in a diagram between two hubs an and b can be characterized as follows: You may pick any way from a to b with the end goal that each edge on that way has a positive weight. At that point you may deduct 1 from the heaviness of each edge on that way, and add 1 to your answer. Continue doing this the same number of times as you might want. The “most extreme stream” between the two hubs is the best that your answer might be, in the event that you pick your ways ideally at each progression. 
 
Information 
 
The principal line will contain a two whole numbers: n and m, the quantity of hubs and the quantity of edges in the diagram. The following m lines will each contain three whole numbers: the endpoints u and v of an undirected edge, and the underlying load of that edge w. 
 
The following line will contain a solitary number q: the quantity of inquiries you should reply. 
 
Every one of the following q lines will contain two numbers: an and b, the two hubs you should discover the maximum stream between. 
 
2≤n,m,≤3∗105 
 
1≤a,b,≤n a≠b 
 
1≤w≤109 
 
u≠v 
 
Extra requirement on input: the given chart is associated and has no cycles, self-circles, or multi-edges. 
 
Yield 
 
For each inquiry, kindly print a solitary whole number: the maximum stream between hubs an and hubs b for that question. 
 
Models 
 
inputCopy 
 
2 1 
 
1 2 2768 
 
 
1 2 
 
2 1 
 
outputCopy 
 
2768 
 
2768 
 
inputCopy 
 
3 2 
 
3 2 4814 
 
2 1 1832 
 
 
2 1 
 
1 2 
 
3 1 
 
outputCopy 
 
1832 
 
1832 
 
1832 
 
inputCopy 
 
5 4 
 
4 2 10348 
 
1 4 2690 
 
5 4 9807 
 
3 4 8008 
 
 
5 4 
 
1 5 
 
5 4 
 
5 4 
 
1 5 
 
outputCopy 
 
9807 
 
2690 
 
9807 
 
9807 
 
2690 
 
inputCopy 
 
5 4 
 
1 3 2653 
 
4 1 322 
 
5 1 8657 
 
2 4 4896 
 
 
4 2 
 
2 5 
 
2 5 
 
1 3 
 
4 5 
 
outputCopy 
 
4896 
 
322 
 
322 
 
2653 
 
322
 

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