Compilare: main.cpp: In function 'int minim(std::vector<int>&)': main.cpp:9:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < x.size(); i++ ){ ~~^~~~~~~~~~ main.cpp: In function 'int maxim(std::vector<int>&)': main.cpp:17:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < x.size(); i++ ){ ~~^~~~~~~~~~ main.cpp: In function 'int cautare(std::vector<int>&, int)': main.cpp:24:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < x.size() && ok == -1; i++ ){ ~~^~~~~~~~~~ main.cpp: In function 'void stergere(std::vector<int>&, std::vector<std::vector<int> >&, int)': main.cpp:37:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < hash[nr%666013].size() && j == -1; i++ ){ ~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int diferenta_minima(std::vector<int>&)': main.cpp:48:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < x.size(); i++ ){ ~~^~~~~~~~~~ main.cpp:49:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int j = i+1; j < x.size(); j++ ){ ~~^~~~~~~~~~ main.cpp: In function 'int cautare_in_hash(std::vector<std::vector<int> >, int)': main.cpp:60:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < hash[nr%666013].size() && ok ==0; i++ ){ ~~^~~~~~~~~~~~~~~~~~~~~~~~