Compilare: main.cpp: In function 'int lev_distance(std::__cxx11::string, std::__cxx11::string)': main.cpp:26:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i <= a.size(); i++) cost[i][0] = i; ~~^~~~~~~~~~~ main.cpp:27:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i <= b.size(); i++) cost[0][i] = i; ~~^~~~~~~~~~~ main.cpp:28:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 1; i <= a.size(); i++) { ~~^~~~~~~~~~~ main.cpp:29:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 1; j <= b.size(); j++) { ~~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:41:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("cuvinte5.in","r",stdin); ^ main.cpp:42:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("cuvinte5.out","w",stdout); ^