diff --git a/others/easter.cpp b/others/easter.cpp
index 36ac48028..44b103353 100644
--- a/others/easter.cpp
+++ b/others/easter.cpp
@@ -18,6 +18,7 @@
  */
 
 #include <cassert>   /// for assert
+#include <cstdint>   /// for integral typedefs
 #include <iostream>  /// for IO operations
 
 /*
diff --git a/others/kadanes3.cpp b/others/kadanes3.cpp
index 9cc6604e9..22c1119c8 100644
--- a/others/kadanes3.cpp
+++ b/others/kadanes3.cpp
@@ -17,8 +17,8 @@
 #include <array>     /// for std::array
 #include <cassert>   /// for assert
 #include <climits>   /// for INT_MIN value
+#include <cstdint>   /// for integral typedefs
 #include <iostream>  /// for IO operations
-
 /**
  * @brief Utility function to check the current maximum number
  * \param arr input array
diff --git a/others/lru_cache.cpp b/others/lru_cache.cpp
index f9cd3caec..5a07c3e4f 100644
--- a/others/lru_cache.cpp
+++ b/others/lru_cache.cpp
@@ -46,6 +46,7 @@
  * */
 
 #include <cassert>        /// for assert
+#include <cstdint>        /// for integral typedefs
 #include <iostream>       /// for IO Operations
 #include <list>           /// for std::list
 #include <unordered_map>  /// for std::unordered_map
diff --git a/others/recursive_tree_traversal.cpp b/others/recursive_tree_traversal.cpp
index ef2720101..6595d5ff5 100644
--- a/others/recursive_tree_traversal.cpp
+++ b/others/recursive_tree_traversal.cpp
@@ -52,6 +52,7 @@
  */
 
 #include <cassert>   /// for assert
+#include <cstdint>   /// for integral typedefs
 #include <iostream>  /// for I/O operations
 #include <vector>    /// for vector