Compilare: main.cpp: In function 'int main()': main.cpp:26:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < a.size(); ++i){ ~~^~~~~~~~~~ main.cpp:39:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < numar.size(); ++i){ ~~^~~~~~~~~~~~~~ main.cpp:69:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = ind + 1; i < a.size(); ++i){ ~~^~~~~~~~~~ main.cpp:77:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < numar.size(); ++i){ ~~^~~~~~~~~~~~~~ main.cpp:69:27: warning: 'ind' may be used uninitialized in this function [-Wmaybe-uninitialized] for(int i = ind + 1; i < a.size(); ++i){ ^