Statement C Tutorial

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  4. Use compound conditions to check for upper and lowercase letters
#include 
main(){
    char cResponse = '\0';
    printf("Enter the letter A: ");
    scanf("%c", &cResponse);
    if ( cResponse== 'A' || cResponse == 'a' )
       printf("\nCorrect response\n");
    else
       printf("\nIncorrect response\n");
}
Enter the letter A: 1

Incorrect response