Merge branch 'master' into cmake

Author: realstealthninja

backtracking/subarray_sum.cpp

@@ -14,6 +14,7 @@
  */
 
 #include <cassert>        /// for assert
+#include <cstdint>
 #include <iostream>       /// for IO operations
 #include <unordered_map>  /// for unordered_map
 #include <vector>         /// for std::vector

backtracking/subset_sum.cpp

@@ -10,6 +10,7 @@
  */
 
 #include <cassert>   /// for assert
+#include <cstdint>
 #include <iostream>  /// for IO operations
 #include <vector>    /// for std::vector
 

backtracking/wildcard_matching.cpp

@@ -12,6 +12,7 @@
  */
 
 #include <cassert>   /// for assert
+#include <cstdint>
 #include <iostream>  /// for IO operations
 #include <vector>    /// for std::vector
 

bit_manipulation/count_bits_flip.cpp

@@ -20,6 +20,7 @@
  * @author [Yash Raj Singh](https://github.com/yashrajyash)
  */
 #include <cassert>   /// for assert
+#include <cstdint>
 #include <iostream>  /// for IO operations
 /**
  * @namespace bit_manipulation

bit_manipulation/count_of_set_bits.cpp

@@ -16,6 +16,7 @@
  * @author [Prashant Thakur](https://github.com/prashant-th18)
  */
 #include <cassert>   /// for assert
+#include <cstdint>
 #include <iostream>  /// for IO operations
 /**
  * @namespace bit_manipulation

bit_manipulation/count_of_trailing_ciphers_in_factorial_n.cpp

@@ -18,6 +18,7 @@
  */
 
 #include <cassert>   /// for assert
+#include <cstdint>
 #include <iostream>  /// for IO operations
 
 /**

bit_manipulation/hamming_distance.cpp

@@ -13,6 +13,7 @@
  */
 
 #include <cassert>   /// for assert
+#include <cstdint>
 #include <iostream>  /// for io operations
 
 /**

bit_manipulation/next_higher_number_with_same_number_of_set_bits.cpp

@@ -16,6 +16,7 @@
  */
 
 #include <cassert>   /// for assert
+#include <cstdint>
 #include <iostream>  /// for IO operations
 
 /**

bit_manipulation/power_of_2.cpp

@@ -16,6 +16,7 @@
  */
 
 #include <cassert>   /// for assert
+#include <cstdint>
 #include <iostream>  /// for IO operations
 
 /**

bit_manipulation/set_kth_bit.cpp

@@ -19,6 +19,7 @@
  */
 
 #include <cassert>   /// for assert
+#include <cstdint>
 #include <iostream>  /// for IO operations
 
 /**