Question

Given the just the first value, generate the next seven terms of the sequences like 1, 11, 21, 1211,
111221, 312211, 13112221, 1113213211. Write the program in C++.

Answer 1

C++ Program:

#include <iostream>

#include <bits/stdc++.h>

using namespace std;

string series(int n)

{

if (n==1)

return "1";

if (n==2)

return "11";

string s="11";

for (int i=3;i<=n;i++)

{

s+='$';

int l=s.length();

int count=1;

string temp = "";

for (int j=1;j<l;j++)

{

if (s[j]!=s[j-1])

{

temp+=count+'0';

temp+= s[j-1];

count = 1;

}

else count++;

}

s=temp;

}

return s;

}

int main()

{

for(int n=1;n<=8;n++)

cout <<series(n) << endl;

return 0;

}

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