clang-tidy fixes

Author: phlptp

examples/close_match.cpp

@@ -11,16 +11,17 @@
 #include <limits>
 #include <string>
 #include <vector>
+#include <utility>
 
 // Levenshtein distance function code generated by chatgpt
 int levenshteinDistance(const std::string &s1, const std::string &s2) {
     size_t len1 = s1.size(), len2 = s2.size();
     std::vector<std::vector<int>> dp(len1 + 1, std::vector<int>(len2 + 1));
 
     for(size_t i = 0; i <= len1; ++i)
-        dp[i][0] = i;
+        dp[i][0] = static_cast<int>(i);
     for(size_t j = 0; j <= len2; ++j)
-        dp[0][j] = j;
+        dp[0][j] = static_cast<int>(j);
 
     for(size_t i = 1; i <= len1; ++i) {
         for(size_t j = 1; j <= len2; ++j) {