Compilare: main.cpp: In function 'int main()': main.cpp:59:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < v.size() ; i++){ ~~^~~~~~~~~~ main.cpp:63:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = i ; j < v.size() ; j++) ~~^~~~~~~~~~ main.cpp:66:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = i ; j < v2.size() ; j++) ~~^~~~~~~~~~~ main.cpp:72:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < v2.size() ; i++){ ~~^~~~~~~~~~~ main.cpp:76:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = i + 1 ; j < v.size() ; j++) ~~^~~~~~~~~~ main.cpp:79:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = i ; j < v2.size() ; j++) ~~^~~~~~~~~~~