Compilare: user.c: In function ‘quicksort’: user.c:23:9: warning: implicit declaration of function ‘partition’ [-Wimplicit-function-declaration] p = partition(s, l, h); ^ user.c: In function ‘main’: user.c:56:14: warning: unused variable ‘x’ [-Wunused-variable] int *s,i,x,a,b,nr=0,j; ^ user.c:60:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.c:61:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&a); ^ user.c:62:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&b); ^ user.c:66:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&s[i]); ^