Compilare: user.c: In function ‘main’: user.c:44:17: warning: too many arguments for format [-Wformat-extra-args] fprintf(out,"%c",s[i],n,s); ^ user.c:45:9: warning: passing argument 4 of ‘stergere’ makes pointer from integer without a cast [enabled by default] stergere(i+1,c,n,s[9999]); ^ user.c:11:6: note: expected ‘char *’ but argument is of type ‘char’ void stergere(int j,char c,int n,char s[9999]) ^ user.c:37:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&n); ^ user.c:38:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%s",s); ^ user.c:45:27: warning: array subscript is above array bounds [-Warray-bounds] stergere(i+1,c,n,s[9999]); ^