Compilare: user.cpp: In function ‘void DFS(int)’: user.cpp:63:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < adjT[node].size(); i++) { ^ user.cpp: In function ‘int getD(int)’: user.cpp:74:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < adjT[node].size(); i++) ^ user.cpp:79:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < adjG[node].size(); i++) { ^ user.cpp: In function ‘int main()’: user.cpp:113:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0, U[0] = true; i < adjT[0].size(); i++) { ^ user.cpp:119:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j < allE.size(); j++) { ^ user.cpp:91:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d", &n, &m); ^ user.cpp:93:43: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d %d", &a, &b, &c); ^ user.cpp:104:43: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d %d", &a, &b, &c); ^