Compilare: user.cpp: In function ‘int main()’: user.cpp:48:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<dreapta[i].size();j++) ^ user.cpp:22:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&N); ^ user.cpp:25:62: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d",&cerc[i].x,&cerc[i].y,&cerc[i].r); ^