Question

A C program that will perform the following:

Input the string: Abc_3_deF

Expected Output:

The string you entered is: aBC_Three_DEf

An output for just this specific input will be fine. If you want to provide a program for all outputs, it would help with my understanding of how the program works overall as well but it is not needed. Thanks!

Answer 1

#include <stdio.h>

#include <stdlib.h>

int main() {

char *arr[10] = {"", "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine"};

char str[20] = "Abc_3_deF";

int i = 0;

while(str[i]){

if(str[i] >= 'a' && str[i] <= 'z')

printf("%c", str[i] - 32);

else if(str[i] >= 'A' && str[i] <= 'Z')

printf("%c", str[i] + 32);

else if(str[i] >= '0' && str[i] <= '9'){

printf("%s", arr[str[i] - '0']);

}

else

printf("%c", str[i]);

i++;

}

printf("\n");

return 0;

}

========================================

SEE OUTPUT

Thanks, PLEASE COMMENT if there is any concern.