#include<stdio.h>
#include<conio.h>
#include<string.h>
void substring();
void char_occurrence();
void main()
{
char str[30],str1[30];
int ch;
clrscr();
do
{
printf("\n****MENU****");
printf("\n1:Sub String");
printf("\n2:Character
Occurrences");
printf("\n3:Exit");
printf("\nEnter your choice: ");
scanf("%d",&ch);
switch(ch)
{
case 1:substring();
break;
case 2:char_occurrance();
break;
case 3:exit(0);
break;
}
}
while(ch!=3);
getch();
}
void substring()
{
char str[30],ch[30];
fflush(stdin);
printf("\nEnter the first string:
");
gets(str);
fflush(stdin);
printf("\nEnter the second string:
");
gets(ch);
if(strstr(str,ch))
{
printf("\nThe given string is sub
string");
}
else
{
printf("\nThe given string is not sub
string");
}
}
void char_occurrennce()
{
char str2[30],ch;
int i,count=0;
fflush(stdin);
printf("\nEnter the string: ");
gets(str2);
fflush(stdin);
printf("\nEnter the character from
string to find occurrence: ");
scanf("%c",&ch);
for(i=0;str2[i]!='\0';i++)
{
if(ch==str2[i])
{
count++;
}
}
printf("\nThe occurrence of character
is: %d",count);
}
//OUTPUT:
//****MENU****
//1:Sub String
//2:Character
Occurrences
//3:Exit
//Enter your
choice: 1
//Enter the first
string: vinit
//Enter the
second string: vinit
//The given
string is sub string
//****MENU****
//1:Sub String
//2:Character
Occurrences
//3:Exit
//Enter your
choice: 2
//Enter the
string: vinit
//Enter the
character from string to find occurrence: v
//The occurrence
of character is: 1
//****MENU****
//1:Sub String
//2:Character
Occurrences
//3:Exit
//Enter your
choice: 3
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