Compilare: user.c:6:14: warning: built-in function ‘log’ declared as non-function [enabled by default] usi v[NMAX], log=1, n; ^ user.c: In function ‘main’: user.c:44:13: warning: unused variable ‘l’ [-Wunused-variable] usi i, j, l, u, c=0; ^ user.c:45:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%hu", &n); ^ user.c:47:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%hu", &v[i]); ^