• Define the function IsNumeric which returns 1 if the character is numeric, 0 otherwise
• Define the function IsVowel which returns 1 if the character is a vowel, 0 otherwise

(Vowels = {‘a’, ‘e’, ‘i’, ‘o’, ‘u’}).

Then, write a program that asks the user to enter a paragraph, it displays it such that the numbers appear in Blue color and the vowels appear in Red color.

#include<stdio.h>
#include<conio.h>
#include <stdlib.h>
#include <windows.h>
#include <dos.h>

#define SIZE 20
 
void SetColor(int ForgC)
{
	WORD wColor;

	HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
	CONSOLE_SCREEN_BUFFER_INFO csbi;

	//We use csbi for the wAttributes word.
	if (GetConsoleScreenBufferInfo(hStdOut, &csbi))
	{
		//Mask out all but the background attribute, and add in the forgournd     color
		wColor = (csbi.wAttributes & 0xF0) + (ForgC & 0x0F);
		SetConsoleTextAttribute(hStdOut, wColor);
	}
	return;
}

int IsNumeric(char c)
{
	return (c >= '0' && c <= '9');
}

int IsVowel(char c)
{
	return (c== 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u');
}

void print(char paragraph[SIZE])
{
	int i;
	for (i = 0; paragraph[i]; i++)
	{
		if (IsNumeric(paragraph[i]))
			SetColor(4); // for red
		else if (IsVowel(paragraph[i]))
			SetColor(1); // for blue
		else
			SetColor(0); // for black

		printf("%c", paragraph[i]);
	}
}

void main()
{
	char paragraph[SIZE];

	printf("enter a paragraph: ");
	gets(paragraph);
	print(paragraph);

	getch();
}