Compilare: user.c: In function ‘main’: user.c:58:3: warning: pointer targets in passing argument 1 of ‘Ciur’ differ in signedness [-Wpointer-sign] Ciur(v,b); ^ user.c:5:6: note: expected ‘char *’ but argument is of type ‘unsigned char *’ void Ciur(char v[],int b) { ^ user.c:59:3: warning: pointer targets in passing argument 1 of ‘difprim’ differ in signedness [-Wpointer-sign] ok =difprim(v,a,b,&imax,&jmax); ^ user.c:22:5: note: expected ‘char *’ but argument is of type ‘unsigned char *’ int difprim(char v[],int a,int b,int *imax,int *jmax) { ^ user.c:55:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&a,&b); ^