From 93a700c7e947c8704df387564ea4780e6c031967 Mon Sep 17 00:00:00 2001
From: Piotr Idzik <65706193+vil02@users.noreply.github.com>
Date: Sun, 25 May 2025 16:23:06 +0200
Subject: [PATCH] style: remove unused `vector` includes (#2945)

---
 backtracking/graph_coloring.cpp                                  | 1 -
 data_structures/trie_tree.cpp                                    | 1 -
 .../karatsuba_algorithm_for_fast_multiplication.cpp              | 1 -
 graph/breadth_first_search.cpp                                   | 1 -
 4 files changed, 4 deletions(-)

diff --git a/backtracking/graph_coloring.cpp b/backtracking/graph_coloring.cpp
index 8fb328a1a80..e5fada991bb 100644
--- a/backtracking/graph_coloring.cpp
+++ b/backtracking/graph_coloring.cpp
@@ -20,7 +20,6 @@
 
 #include <array>     /// for std::array
 #include <iostream>  /// for IO operations
-#include <vector>    /// for std::vector
 
 /**
  * @namespace backtracking
diff --git a/data_structures/trie_tree.cpp b/data_structures/trie_tree.cpp
index e966b2dfde2..c0b6e4fad43 100644
--- a/data_structures/trie_tree.cpp
+++ b/data_structures/trie_tree.cpp
@@ -12,7 +12,6 @@
 #include <iostream>
 #include <memory>
 #include <string>
-#include <vector>
 
 /** \namespace data_structures
  * \brief Data-structure algorithms
diff --git a/divide_and_conquer/karatsuba_algorithm_for_fast_multiplication.cpp b/divide_and_conquer/karatsuba_algorithm_for_fast_multiplication.cpp
index 1d9bd86cdda..a4b5be22e31 100644
--- a/divide_and_conquer/karatsuba_algorithm_for_fast_multiplication.cpp
+++ b/divide_and_conquer/karatsuba_algorithm_for_fast_multiplication.cpp
@@ -15,7 +15,6 @@
 #include <cassert>   /// for assert
 #include <cstring>   /// for string
 #include <iostream>  /// for IO operations
-#include <vector>    /// for std::vector
 
 /**
  * @namespace divide_and_conquer
diff --git a/graph/breadth_first_search.cpp b/graph/breadth_first_search.cpp
index 4bc58f34212..edee8779c10 100644
--- a/graph/breadth_first_search.cpp
+++ b/graph/breadth_first_search.cpp
@@ -52,7 +52,6 @@
 #include <map>
 #include <queue>
 #include <string>
-#include <vector>
 
 /**
  * \namespace graph