Compilare: user.cpp: In function ‘int main()’: user.cpp:39:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<unghi.size()-1; ++i){ ^ user.cpp:41:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=i+1; j<unghi.size(); ++j) ^ user.cpp:51:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<unghi.size(); ++i){ ^ user.cpp:19:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &n); ^ user.cpp:21:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &dist); ^