Thread: Help with the question.(array of pointers to strings)

the question is :

Write a program that uses an array of pointers to strings str[ ]. Receive two strings str1 and str2 and check if str1 is embedded in any of the strings in str[ ]. If str1 is found, then replace it with str2.

Code:

char *str[ ] = {
                    "We will teach you how to...",
                    "Move a mountain",
                    "Level a building",
                    "Erase the past",
                    "Make a million",
                    "...all through C!"
                } ;

For example if str1 contains "mountain" and str2 contains "car", then the second string in str should get changed to "Move a car".

Now i have made a program to compare and remove the whole string in str but how to compare particular word here i have no idea.just need the idea how to do that

my code :

Code:

/*30/10/13 22:15

*/
#include<stdio.h>


main( )
{
 int i,a,x;
 char *str[ ] = {
                    "We will teach you how to...",
                    "Move a mountain",
                    "Level a building",
                    "Erase the past",
                    "Make a million",
                    "...all through C!"
                } ;
 char str1[30],str2[30];
 printf("Enter str1 :");
 scanf("\n%[^\n]s",str1);
 printf("Enter str2 :");
 scanf("\n%[^\n]s",str2);
 for(i=0;i<6;i++)
 {
  a=strcmp(str[i],str1);
  if(a==0)
  {
     str[i]=str2;
  }
 }
 for(x=0;x<6;x++)
 printf("\n%s",str[x]);
}