Compilare: user.cpp: In function ‘int main()’: user.cpp:35:8: warning: suggest parentheses around assignment used as truth value [-Wparentheses] flag = i = 0; ^ user.cpp:25:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d", &n, &m); ^ user.cpp:30:51: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d%d", &o[i].x, &o[i].y, &o[i].d); ^