Question

c program to write a function which is passed two string and returns 1 if second string occurs in the first string
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Answer 1

Explanation:

c program to write a function which is passed two string and returns 1 if second string occurs in the first string

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Answer 2

Answer:

using System;  

 

class GFG {  

     

   // Returns true if str1[] is a  

   // subsequence of str2[] m is  

   // length of str1 and n is length  

   // of str2  

   static bool isSubSequence(string str1,  

                 string str2, int m, int n)  

   {  

         

       // Base Cases  

       if (m == 0)  

           return true;  

       if (n == 0)  

           return false;  

             

       // If last characters of two strings  

       // are matching  

       if (str1[m-1] == str2[n-1])  

           return isSubSequence(str1, str2,  

                                   m-1, n-1);  

 

       // If last characters are not matching  

       return isSubSequence(str1, str2, m, n-1);  

   }  

     

   // Driver program  

   public static void Main ()  

   {  

       string str1 = "gksrek";  

       string str2 = "geeksforgeeks";  

       int m = str1.Length;  

       int n = str2.Length;  

       bool res = isSubSequence(str1, str2, m, n);  

         

       if(res)  

           Console.Write("Yes");  

       else

           Console.Write("No");  

   }  

}  

 

// This code is contributed by nitin mittal.

Explanation: