Compilare: main.cpp: In function 'int validare(std::vector<int>, std::vector<int>)': main.cpp:12:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < x.size() && ok == 1; i++ ){ ~~^~~~~~~~~~ main.cpp:13:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int j = 0; j < y.size() && ok == 1; j++ ){ ~~^~~~~~~~~~ main.cpp: In function 'std::vector<int> concatenare(std::vector<int>, std::vector<int>)': main.cpp:21:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < y.size(); i ++ ){ ~~^~~~~~~~~~ main.cpp: In function 'int suma(std::vector<int>, std::vector<int>)': main.cpp:29:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < pozitii.size(); i++ ){ ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int validare1(std::vector<int>, int)': main.cpp:36:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < v.size() && ok == 1; i++){ ~~^~~~~~~~~~ main.cpp: In function 'int validare2(std::vector<int>, std::vector<int>)': main.cpp:43:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < v1.size() && ok1 == 1; i++ ){ ~~^~~~~~~~~~~ main.cpp:45:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int j = 0; j < v2.size() && ok2 == 0; j++ ){ ~~^~~~~~~~~~~ main.cpp: In function 'void afisare(std::vector<int>)': main.cpp:54:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < v.size(); i++ ){ ~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:83:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < pozitii_2.size(); i++ ){ ~~^~~~~~~~~~~~~~~~~~ main.cpp:84:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int j = i + 1; j < pozitii_2.size(); j++){ ~~^~~~~~~~~~~~~~~~~~ main.cpp:88:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < pozitii_4.size(); i++ ){ ~~^~~~~~~~~~~~~~~~~~ main.cpp:89:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int j = 0 ; j < v.size(); j++ ){ ~~^~~~~~~~~~ main.cpp:92:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int jj = 0; jj < pozitii_4[i].size(); jj++ ){ ~~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:97:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int k = 0; k < pozitii_5.size(); k++ ){ ~~^~~~~~~~~~~~~~~~~~