Compilare: user.cpp: In function ‘void sterge_muchia(int, int)’: user.cpp:58:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[x].size(); ++i) ^ user.cpp: In function ‘int main()’: user.cpp:105:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < ciclu.size(); ++i) ^ user.cpp:109:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i < ciclu.size(); ++i) ^ user.cpp:111:55: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = i; j < ciclu.size(); ++j) ^