Sumowanie elementów tablicy.

tak jak pisał @alixir

to read the value as an ascii code, you can write

char a = 'a';
int ia = (int)a;
/* note that the int cast is not necessary -- int ia = a would suffice */
to convert the character '0' -> 0, '1' -> 1, etc, you can write

char a = '4';
int ia = a - '0';
/* check here if ia is bounded by 0 and 9 */

z http://stackoverflow.com​/questions/5029840​/convert-char-to-int-in-c-and-c

Dobra, dzięki za pomoc :)