Two Strings & Compare them in c pgm

Check if the Substring is present in the given String

#include

#include

void main()

{

    char str[80], search[10];

    int count1 = 0, count2 = 0, i, j, flag;

    clrscr();

    printf("Enter a string:");

    gets(str);

    printf("Enter search substring:");

    gets(search);

    while (str[count1] != '?')

        count1++;

    while (search[count2] != '?')

        count2++;

    for (i = 0; i <= count1 - count2; i++)

    {

        for (j = i; j < i + count2; j++)

        {

            flag = 1;

            if (str[j] != search[j - i])

            {

                flag = 0;

                break;

            }

        }

        if (flag == 1)

            break;

    }

    if (flag == 1)

        printf("Search successful!");

    else

        printf("Search unsuccessful!");

 getch();

}

Output

Enter a string: hello

Enter search substring: world

Search unsuccessful!

Enter a string: helloworld

Enter search substring:ld

Search successful!

Accepts two Strings & Compare them

#include 

#include 

void main()

{

    int count1 = 0, count2 = 0, flag = 0, i;

    char string1[10], string2[10];

    printf("Enter a string:");

    gets(string1);

    printf("Enter another string:");

    gets(string2);

        while (string1[count1] != '\0')

        count1++;

        while (string2[count2] != '\0')

        count2++;

    i = 0;

    while ((i < count1) && (i < count2))

    {

        if (string1[i] == string2[i])

        {

            i++;

            continue;

        }

        if (string1[i] < string2[i])

        {

            flag = -1;

            break;

        }

        if (string1[i] > string2[i])

        {

            flag = 1;

            break;

        }

    }

    if (flag == 0)

        printf("Both strings are equal \n");

    if (flag == 1)

        printf("String1 is greater than string2 \n", string1, string2);

    if (flag == -1)

        printf("String1 is less than string2 \n", string1, string2);

getch();

}

Output

Enter a string: hello

Enter another string: world

String1 is less than string2

Enter a string:object

Enter another string:class

String1 is greater than string2

Enter a string:object

Enter another string:object

Both strings are equal