Compilare: user.cpp: In function ‘int F(int)’: user.cpp:42:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(Comp[ind].size() >= limit) return Comp[ind].size() * (Comp[ind].size() - 1); ^ user.cpp:46:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Comp[ind].size(); i++){ ^ user.cpp:56:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(cont == Comp[ind].size()) con += 2; ^ user.cpp: In function ‘int main()’: user.cpp:85:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Comp.size(); i++) ^ user.cpp:67:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d", &t); ^ user.cpp:70:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d", &n, &m); ^ user.cpp:72:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d", &x, &y); ^ user.cpp: In function ‘int F(int)’: user.cpp:55:26: warning: ‘two’ may be used uninitialized in this function [-Wmaybe-uninitialized] dfs(Comp[ind][two]); ^