Compilare: main.c: In function 'main': main.c:34:6: warning: assignment from incompatible pointer type [-Wincompatible-pointer-types] p=(int*)malloc(np*sizeof(int)); ^ main.c:6:11: warning: unused variable 's' [-Wunused-variable] int n,s,i,j,np=0,aux,prod,fi=0; ^ main.c:11:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^~~~~~~~~~~~~~~~~