add source (#216)

lrvideckis · web-flow · commit 71d747262147 · 2026-04-26T13:35:09.000-06:00
diff --git a/library/trees/centroid_decomp.hpp b/library/trees/centroid_decomp.hpp
@@ -1,4 +1,5 @@
 #pragma once
+//! https://codeforces.com/blog/entry/125866?#comment-1117826
 //! @code
 //!   vector<basic_string<int>> g(n);
 //!   vi par = cd(g, [&](int cent) {});

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,5 @@`
`1`	`1`	`#pragma once`
	`2`	`+//! https://codeforces.com/blog/entry/125866?#comment-1117826`
`2`	`3`	`//! @code`
`3`	`4`	`//! vector<basic_string<int>> g(n);`
`4`	`5`	`//! vi par = cd(g, [&](int cent) {});`