(HackerRank) Write a Modular C Programming code to solve Find the N-th character, Given a binary string S . Perform R iterations on string S, where in each iteration 0 becomes 01 and 1 becomes 10
Given a binary string S . Perform R iterations on string S, where in each iteration 0 becomes 01 and 1 becomes 10. Find the Nth character of the string after performing these R iterations.
Input Format
First line contains the binary string consisting of 0’s and 1’s.
Second line contains R number of iterations
Third line contains N, Nth character to be found out.
Constraints
1 ≤ String length ≤ 100 1 ≤ R ≤ 20 0 ≤ N < Length of final string
Output Format
Display the Nth character in a single line
Sample Input 0
101
2
3
Sample Output 0
1
Explanation 0
After 1st iteration string becomes 100110.
After 2nd iteration, string = 100101101001
After 2nd iteration we can clearly see that the 3rd character is 1. (character number starts from 0)
CODE:
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<math.h>
int main() {
char str[200],str2[200];
int k,n,i;
scanf("%s",str);
scanf("%d%d",&k,&n);
while(k>0)
{
i=0;
while(str[i]>0)
{
str2[2*i]=str[i];
if(str[i]=='1')
str2[(2*i)+1]='0';
else //if(str[i]=='0')
str2[(2*i)+1]='1';
i++;
}
str2[2*i]='\0';
//printf("%s\n",str2);
strcpy(str,str2);
k--;
}
printf("%c",str[n]);
return 0;
}
OUTPUT
Congratulations, you passed the sample test case. Click the Submit Code button to run your code against all the test cases. Input (stdin) 101 2 3 Your Output (stdout) 1 Expected Output 1
Please find some more codes of Loops, Condition Statements, 1D Arrays, 2D Arrays, Strings, Pointers, Data Structures, Files, Linked lists, Stacks, Queues, Binary Trees, MISC, Solved model question papers & Hacker Rank all solutions on the below page:
Top 100+ C Programming codes – KLE Technological University
