#include int main(void) { int ch, test; char c; ch = 'a'; printf(" character a has ASCII code = %d\n", ch); ch = 'z'; printf(" character z has ASCII code = %d\n", ch); printf("Enter any lower case character\n"); scanf("%c", &c); test = (c >= 'a') && (c <= 'z'); printf("You entered a character with ASCII code %d and test=%d\n",c,test); printf("Enter any letter (lower case or upper case)\n"); scanf(" %c", &c); test = ((c >= 'a') && (c <= 'z')) || ((c >= 'A') && (c <= 'Z')); printf("You entered a character with ASCII code %d and test=%d\n",c,test); return(0); }