Write a program that reads two strings CH1 and CH2, compares them lexicographically and displays the result without using strcmp:

Example:
    Enter the first string : ABC
    Enter the second string: abc
    "ABC" precedes "abc"

//Solution 1
#include<stdio.h>
#include<string.h>
#include<conio.h>
#define SIZE 50
void main()
{
	char CH1[SIZE], CH2[SIZE];
	int i, j;

	printf("Enter the first string : ");
	scanf("%s", CH1);

	printf("Enter the second string : ");
	scanf("%s", CH2);

	for (i = 0; CH1[i] != '\0'; i++)
	{
		if (CH1[i] < CH2[i])
			break;
		if (CH2[i] < CH1[i])
			break;
	}

	// CH1[i]=='\0' and CH2[i]=='\0' or CH2[i]==!!!!
	// break
	if (CH1[i] == '\0' && CH2[i] == '\0')
		printf("\"%s\" is equal to \"%s\"\n", CH1, CH2);
	else
		if (CH1[i] == '\0' && CH2[i] != '\0')
			printf("\"%s\" precedes \"%s\"\n", CH1, CH2);
		else
			if (CH1[i] < CH2[i])
				printf("\"%s\" precedes \"%s\"\n", CH1, CH2);
			else
				if (CH2[i] < CH1[i])
					printf("\"%s\" precedes \"%s\"\n", CH2, CH1);

	getch();
}

//Solution 2
#include<stdio.h>
#include<string.h>
#include<conio.h>
#define SIZE 50
void main()
{
	char CH1[SIZE], CH2[SIZE];
	int i, j;

	printf("Enter the first string : ");
	scanf("%s", CH1);

	printf("Enter the second string : ");
	scanf("%s", CH2);

	for (i = 0; CH1[i] == CH2[i] && CH1[i] != '\0' && CH1[2] != '\0'; i++)
		;

	if (CH1[i] == CH2[i])
		printf("\"%s\" is equal to \"%s\"\n", CH1, CH2);
	else
		if (CH1[i] < CH2[i])
			printf("\"%s\" precedes \"%s\"\n", CH1, CH2);
		else
			printf("\"%s\" precedes \"%s\"\n", CH2, CH1);

	getch();
}