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StringOperation.c
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StringOperation.c
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/*
============================================================================
Name : string.c
Author :
Version :
Copyright : Your copyright notice
Description : Hello World in C, Ansi-style
============================================================================
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int length(char str[20])
{
int i = 0;
while (str[i] != '\0')
i++;
return i;
}
void copy(char str[20])
{
int k;
char tar[20];
printf("\nEnter the string to be copied: ");
gets(tar);
k = length(tar);
for (int i = 0; i < k; i++)
str[i] = tar[i];
printf("%s", str);
}
void compare(char str[20])
{
int l = length(str);
int i = 0;
char tar[20];
printf("Enter the string to be compared: ");
scanf("%s", &tar);
int k = length(tar);
if (l == k)
{
for (i = 0; i < l; i++)
if (str[i] != tar[i])
{
printf("\nTwo strings are not equal!!\n");
return;
}
if (i == l)
printf("\nTwo strings are equal\n");
}
}
void reverse(char str[20])
{
int l = length(str);
int k = l;
char tar[20];
for (int i = 0; i < l; i++)
tar[k - i - 1] = str[i];
tar[l] = '\0';
printf("\n\n%s", tar);
}
void palindrome(char str[20])
{
int l = length(str);
int k = l, i;
char tar[20];
for (i = 0; i < l; i++)
tar[k - i - 1] = str[i];
tar[l] = '\0';
for (i = 0; i < l; i++)
if (str[i] != tar[i])
break;
if (i == l)
printf("\'%s\' is Palindrome\n", str);
else
printf("\'%s\' is not Palindrome\n", str);
}
void substring(char str[20])
{
int l = length(str);
int i, j;
char sub[20];
printf("Enter the Substring: ");
gets(sub);
int k = length(sub);
for (i = 0; i < l; i++)
if (sub[0] == str[i])
break;
for (j = 0; j < k; j++)
if (sub[j] != str[j + i])
break;
if (j == k)
printf("\'%s\' is substring. \n", str);
else
printf("\'%s\' not is substring. \n", str);
}
int main()
{
char str[20];
int f = 1, t;
printf("Enter the String :");
gets(str);
while (1)
{
printf("\n\n 1.String Length \n 2.Palindrome \n 3.String Comparison \n 4.Copy \n 5.Reverse \n 6.Substring \n 7.Exit");
printf("\n Enter the choice: ");
scanf("%d", &t);
switch (t)
{
case 1:
printf("\nString Length is :");
int k = length(str);
printf("%d\n", k);
break;
case 2:
palindrome(str);
break;
case 3:
compare(str);
break;
case 4:
copy(str);
break;
case 5:
reverse(str);
break;
case 6:
substring(str);
break;
case 7:
exit(0);
f = 0;
break;
}
}
return 0;
}