Compilare: user.cpp: In function ‘int main()’: user.cpp:37:45: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d", &vapor_len, &far_len); ^ user.cpp:41:53: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%f%f", &vapor[i].x, &vapor[i].y); ^ user.cpp:45:50: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%f%f", &far[i].x, &far[i].nr); ^