Design and Analysis of Algorithms

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Program to delete a string from a string.

 

#include<iostream.h>
#include<stdio.h>
#include<conio.h>
void main()
{
clrscr();
char str[80];
int i,p,n,len;
cout<<"\n enter the string (max 80 character):";
gets(str);
for(len=0;str[len]!='\0';len++);
cout<<"\n enter the starting position of substring to be deleted:";
cin>>p;
if(p>len)
cout<<"starting position must be less than length of string aborting!!\n";
else
{
cout<<"\n enter the number of characters of substring to be deleted:";
cin>>n;
if(n+p>=len)
n=len-p+1;
for(i=p-1;str[i]!='\0';i++)
str[i]=str[i+n];
cout<<"\n string after deletion of substring is:"<<str;
}
getch();
}








 

Output:

enter the string (max 80 character):hello how are you

enter the starting position of substring to be deleted: 6

enter the number of characters of substring to be deleted:4

string after deletion of substring is:hello are you

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