chore: use iwyu on strings/**.cpp

strings/boyer_moore.cpp

@@ -42,12 +42,13 @@
  * @author [Stoycho Kyosev](https://github.com/stoychoX)
  */
 
-#include <cassert>   /// for assert
-#include <climits>   /// for CHAR_MAX macro
-#include <cstring>   /// for strlen
-#include <iostream>  /// for IO operations
-#include <string>    /// for std::string
-#include <vector>    /// for std::vector
+#include <cassert>    // for assert
+#include <climits>    // for CHAR_MAX
+#include <cstring>    // for size_t, strlen
+#include <iostream>   // for operator<<, basic_ostream, cout
+#include <string>     // for basic_string, string
+#include <vector>     // for vector
+#include <algorithm>  // for max
 
 #define APLHABET_SIZE CHAR_MAX  ///< number of symbols in the alphabet we use
 

strings/brute_force_string_searching.cpp

@@ -2,13 +2,14 @@
  * @file
  * @brief          String pattern search - brute force
  */
-#include <iostream>
+#include <iostream>  // for operator<<, basic_ostream, char_traits, cout
+#include <string>    // for basic_string, operator==, string, to_string
 #ifdef _MSC_VER
-#include <string>  // use this for MS Visual C++
+#include <string>    // for basic_string, operator==, string, to_string
 #else
-#include <cstring>
+#include <cstring>   // for size_t
 #endif
-#include <vector>
+#include <vector>    // for vector, allocator
 
 namespace string_search {
 /**

strings/horspool.cpp

@@ -4,9 +4,10 @@
  * @author [Harry Kontakis](https://github.com/ckontakis)
  */
 
-#include <iostream>
-#include <unordered_map>
-#include <cassert>
+#include <unordered_map>  // for unordered_map, _Node_iterator_base, operator!=
+#include <cassert>        // for assert
+#include <string>         // for basic_string, string
+#include <utility>        // for pair, make_pair
 
 /**
  * @namespace strings

strings/knuth_morris_pratt.cpp

@@ -13,10 +13,11 @@
  * @author [Yancey](https://github.com/Yancey2023)
  */
 
-#include <cassert>   /// for assert
-#include <iostream>  /// for IO operations
-#include <string>    /// for std::string
-#include <vector>    /// for std::vector
+#include <cassert>   // for assert
+#include <cstddef>   // for size_t
+#include <iostream>  // for operator<<, basic_ostream, cout
+#include <string>    // for basic_string, string
+#include <vector>    // for vector
 
 /**
  * @namespace string_search

strings/manacher_algorithm.cpp

@@ -10,14 +10,15 @@
  * @author [Riti Kumari](https://github.com/riti2409)
  */
 
-#include <cassert>   /// for assert
-#include <cstdint>   /// for integral typedefs
-#include <iostream>  /// for IO operations
-#include <vector>    /// for std::vector STL
+#include <cassert>    // for assert
+#include <cstdint>    // for uint64_t
+#include <iostream>   // for char_traits, basic_ostream, operator<<, cout, endl
+#include <vector>     // for allocator, vector
+#include <algorithm>  // for min
+#include <string>     // for basic_string, operator==, operator+, string
 #ifdef _MSC_VER
-#include <string>  /// for string (required for MS Visual C++)
+#include <string>     // for basic_string, operator==, operator+, string
 #else
-#include <cstring>  /// for string
 #endif
 
 /**

strings/rabin_karp.cpp

@@ -4,13 +4,13 @@
  * Algorithm](https://en.wikipedia.org/wiki/Rabin–Karp_algorithm) for finding a
  * pattern within a piece of text with complexity O(n + m)
  */
-#include <cassert>
-#include <cmath>
-#include <iostream>
+#include <stdint.h>  // for int64_t
+#include <cassert>   // for assert
+#include <cmath>     // for pow
+#include <string>    // for basic_string, string
 #ifdef _MSC_VER
-#include <string>  // use this for MS Visucal C++
+#include <string>    // for basic_string, string
 #else
-#include <cstring>
 #endif
 
 #define PRIME 5  ///< Prime modulus for hash functions

strings/z_function.cpp

@@ -11,15 +11,15 @@
  * @author [Ritika Gupta](https://github.com/RitikaGupta8734)
  */
 
-#include <cstdint>   /// for integral typedefs
-#include <iostream>  /// for IO operations
+#include <cstdint>    // for uint64_t
+#include <algorithm>  // for min
+#include <string>     // for basic_string, string, operator+, char_traits
 #ifdef _MSC_VER
-#include <string>  /// for string (use this for MS Visual C++)
+#include <string>     // for basic_string, string, operator+, char_traits
 #else
-#include <cstring>  /// for string
 #endif
-#include <cassert>  /// for assert
-#include <vector>   /// for std::vector
+#include <cassert>    // for assert
+#include <vector>     // for vector, allocator, operator==
 
 /**
  * @brief Generate the Z-function for the inputted string.