Compilare: user.cpp: In function ‘int main()’: user.cpp:13:9: warning: unused variable ‘cost’ [-Wunused-variable] int n, cost; ^ user.cpp:16:21: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &n); ^ user.cpp:22:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%ld", &c); ^ user.cpp:45:31: warning: ‘ordonatfin1’ may be used uninitialized in this function [-Wmaybe-uninitialized] auxdeq->left = ordonatfin1; ^