Saturday, December 13, 2014

String Ignoring Whitespaces in c pgm



Sort String Ignoring Whitespaces and Repeating Characters Only Once

#include 
#include 
#include 
 
#define size 50
 
void main()
{
    char string[size], string1[size], string2[size];
    int i, j = 0, a = 0, temp, len = 0, len1 = 0, k = 0;
    clrscr();
    printf("\nEnter a string:");
    scanf("%[^\n]s", string1);
 
    
    for (i = 0;string1[i] != '\0';i++)
    {    
        if (string1[i] == ' ')
        {
            continue;
        }
        string[j++] = string1[i];
    }
 
   
    for (i = 0;string[i] != '\0';i++)
    {
        for (j = i + 1;string[j] != '\0';j++)
        {
            if (string[i] > string[j])
            {
                temp = string[i];
                string[i] = string[j];
                string[j] = temp;
            }
        }
    }
    string[i] = '\0';
    len = strlen(string);
    for (i = 0;string[i] != '\0';i++)
    {
        if (string[i] == string[i + 1] && string[i + 1] != '\0')
        {
            k++;
            continue;
        }
        string2[a++] = string[i];
        string[a] = '\0';
    }
    len1 = len - k;
    printf("The sorted string is:");
    for (temp = 0;temp < len1;temp++)
    {
        printf("%c", string2[temp]);
    }
 getch();
}

Output
 
 
Enter a string:abcdel bcdl abcdefg
The sorted string is:abcdefgl

Reverse the String using Both Recursion and Iteration

#include 
#include 
#include 
 
void disp_str1_rec(char *);
 
void main()
{
    char str1[100], *ptr;
    int len1 = 0, i;
    char ch;
    clrscr();
    printf("Enter the string:\n");
    scanf("%[^\n]s", str1);
    ptr = str1;
    len1 = strlen(str1);
    printf("Using iteration:\n");
    for (i = len1 - 1; i >= 0;i--)        
    {
 
        ch = str1[i];
        printf("%c", ch);
    }
    printf("Using recurssion:\n");
    disp_str1_rec(ptr);
}
 
void disp_str1_rec(char *stng)
{
    char ch;
    if (*stng != '\0')
    {
        ch = *stng;
        stng++;
        disp_str1_rec(stng);
        printf("%c", ch);
    }
    else
    return;
getch();
}

Output
 
Enter the string:
welcome to sanfoundry's c programming class
 
Using iteration:
ssalc gnimmargorp c s'yrdnuofnas ot emoclew
Using recurssion:
ssalc gnimmargorp c s'yrdnuofnas ot emoclewi


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