Write a program which concate and reverse string by using pointer to string.

Write a program which concate and reverse string by using pointer to string.
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1 Answer

Answer :

#include<iostream.h>

#include<conio.h>

void main()

 {

char str1[20], str2[20], rev[20],*p1,*p2;

int cnt=0;

clrscr();

cout<<"\n Concatenation of String";

cout<<"\n Enter two Strings";

cin>>str1>>str2;

 p1=&str1[0];

 p2=&str2[0];

while(*p1!='\0')

 {

p1++;

 }

while(*p2!='\0')

 {

*p1=*p2;

p1++;

p2++;

 }

 *p1='\0';

cout<<"\nConcatenated String is "<<str1;

cout<<"\nReverse of String";

p2=&str2[0];

while(*p2!='\0')

 {

p2++;

cnt++;

 }

p2--;

 p1=&rev[0];

while(cnt>0)

 {

*p1=*p2;

p2--;

p1++;

 }

 *p1='\0';

cout<<"\n Reverse String is :\t"<<rev;

getch();

 }
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