Daleks' Invasion (hard)

题意翻译

给一张图，对于每条边，询问可以将其边权修改的最大值 $x$，使得修改后这条边可以在最小生成树上。 如果可以修改为任意大的值，输出 ${10}^9$。

题目描述

With your help, Heidi has prepared a plan of trap placement and defence. Yet suddenly, the Doctor popped out of the TARDIS and told her that he had spied on the Daleks' preparations, and there is more of them than ever. Desperate times require desperate measures, so Heidi is going to risk meeting with the Daleks and she will consider placing a trap along any Corridor. This means she needs your help again in calculating $ E_{max}(c) $ – the largest $ e \le 10^9 $ such that if we changed the energy requirement of $ c $ to $ e $ , then the Daleks might use $ c $ in their invasion – but this time for all Time Corridors.

输入输出格式

输入格式

First line: number $ n $ of destinations, number $ m $ of corridors ( $ 2 \leq n \leq 10^5 $ , $ n - 1 \leq m \leq 10^6 $ ). The next $ m $ lines: destinations $ a $ , $ b $ and energy $ e $ ( $ 1 \leq a, b \leq n $ , $ a \neq b $ , $ 0 \leq e \leq 10^9 $ ). No pair $ \{a, b\} $ will repeat. The graph is guaranteed to be connected. It is not guaranteed that all energy requirements $ e $ are distinct, or that the minimum spanning tree is unique.

输出格式

Output $ m $ lines, each containing one integer: $ E_{max}(c_i) $ for the $ i $ -th Corridor $ c_i $ from the input.

输入输出样例

输入样例 #1

3 3
1 2 8
2 3 3
3 1 4

输出样例 #1

4
8
8