C String Pro

Find Highest Frequency Character in a String

#include

#include

#include

char string1[100], visited[100];

int count[100] = {0}, flag = 0;

void main()

{

    int i, j = 0, k = 0, l, max, index;

    clrscr();

    printf("Enter a string : ");

    scanf("%[^\n]s", string1);

    l = strlen(string1);

    for (i = 0; i < l; i++)

    {

        if (i == 0)

        {

            visited[j++] = string1[i];

            count[j - 1]++;

        }

        else

        {

            for (k = 0; k  < j; k++)

            {

                if (string1[i] == visited[k])

                {

                    count[k]++;

                    flag = 1;

                }

            }

            if (flag == 0)

            {

                visited[j++] = string1[i];

                count[j - 1]++;

            }

            flag = 0;

        }

    }   

    for (i = 0; i < j; i++)

    {

        if ((i == 0) && (visited[i] != ' '))

        {

            max = count[i];

            continue;

        }

        if ((max < count[i]) && (visited[i] != ' '))

        {

            max = count[i];

            index = i;

        }

    }

    printf("\nMax repeated character in the string = %c ", visited[index]);

    printf("\nIt occurs %d times", count[index]);

    getch();

}

Output

Enter a string : Welcome to Sanfoundry's C Programming Class !

Max repeated character in the string = o

It occurs 4 times

Display every possible Combination of two Words or Strings from the input Strings without Repeated Combinations

#include 

#include 

#include 

void main()

{

    int i, j = 0, k, k1 = 0, k2 = 0, row = 0;

    char temp[50];

    char str[100], str2[100], str1[5][20], str3[6][20], str4[60][40];

    clrscr();

    printf("enter the string :");

    scanf(" %[^\n]s", &str);

    printf("enter string:");

    scanf(" %[^\n]s", &str2);

              for (i = 0;str[i] != '\0'; i++)

    {

        if (str[i] == ' ')

        {

            str1[k1][j] = '\0';

            k1++;

            j = 0;

        }

        else

        {

            str1[k1][j] = str[i];

            j++;

        }

    }

    str1[k1][j] = '\0';

    j = 0;

    for (i = 0;str2[i] != '\0';i++)

    {

        if (str2[i] == ' ')

        {

            str3[k2][j] = '\0';

            k2++;

            j = 0;

        }

        else

        {

            str3[k2][j] = str2[i];

            j++;

        }

    }

    str3[k2][j] = '\0';

    row = 0;

    for (i = 0;i <= k1;i++)

    {

        for (j = 0;j <= k2;j++)

        {

            strcpy(temp, str1[i]);

            strcat(temp, str3[j]);

            strcpy(str4[row], temp);

            row++;

        }

    }

    for (i = 0;i <= k2;i++)

    {

        for (j = 0;j <= k1;j++)

        {

            strcpy(temp, str3[i]);

            strcat(temp, str1[j]);

            strcpy(str4[row], temp);

            row++;

        }

    }

    for (i = 0;i < row;i++)

    {

        for (j = i + 1;j < row;j++)

        {

            if (strcmp(str4[i], str4[j]) == 0)

            {

                for (k = j;k <= row;k++)

                {

                    strcpy(str4[k], str4[k + 1]);

                }

                row--;

            }

        }

    }

    for (i = 0;i < row;i++)

    {

        printf("\n%s", str4[i]);

    }

    getch();

}

Output

enter the string :welcome to sanfoundry's class

enter string:welcome to c programming class

welcomewelcome

welcometo

welcomec

welcomeprogramming

welcomeclass

towelcome

toto

toc

toprogramming

toclass

sanfoundry'swelcome

sanfoundry'sto

sanfoundry'sc

sanfoundry'sprogramming

sanfoundry'sclass

classwelcome

classto

classc

classprogramming

classclass

welcomesanfoundry's

tosanfoundry's

cwelcome

cto

csanfoundry's

cclass

programmingwelcome

programmingto

programmingsanfoundry's

programmingclass

classsanfoundry's