Compilare: main.cpp: In function 'int main()': main.cpp:24:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < numar.size() ; i++) ~~^~~~~~~~~~~~~~ main.cpp:31:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < numar.size() ; i++) ~~^~~~~~~~~~~~~~ main.cpp:34:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = i + 1 ; j < numar.size() ; j++) ~~^~~~~~~~~~~~~~