Compilare: user.cpp: In function ‘void getComponentSize(int, int)’: user.cpp:20:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < adjList[u].size(); i++) { ^ user.cpp: In function ‘void gRemEdge(int, int)’: user.cpp:44:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < adjList[u].size(); i++) { ^ user.cpp: In function ‘void setComponent(int, int)’: user.cpp:55:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < adjList[u].size(); i++) { ^ user.cpp: In function ‘int main()’: user.cpp:76:32: 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:78:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d", &u, &v); ^ user.cpp:85:43: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d %d", &t, &x, &y); ^