diff --git a/data-structures/hashmaps/pairs_with_difference_K.cpp b/data-structures/hashmaps/pairs_with_difference_k.cpp
similarity index 100%
rename from data-structures/hashmaps/pairs_with_difference_K.cpp
rename to data-structures/hashmaps/pairs_with_difference_k.cpp
diff --git a/math/Pascals_triangle.cpp b/math/pascals_triangle.cpp
similarity index 100%
rename from math/Pascals_triangle.cpp
rename to math/pascals_triangle.cpp
diff --git a/math/Slicker_Algorithm.cpp b/math/slicker_algorithm.cpp
similarity index 100%
rename from math/Slicker_Algorithm.cpp
rename to math/slicker_algorithm.cpp