Program 25TH in C++

PROBLEM STATEMENT :

If you are given an input array of chars 1 2 3 4 a b c d

output should be 1 a 2 b 3 c 4 d

No Buffers should be used

variables are permissible.

SOLUTION :

#include <iostream.h>

#include <cstdio>

int main()

{

char a1[8]={'1','2','3','4','a','b','c','d'};

int strlen=sizeof(a1)/sizeof(char);

int i=0;

int j=0;

for(i=0; i<strlen; i++)

{

if(a1[i]<48 || a1[i]>57)

{

j=i;

break;

}

}

for(i=1; j<strlen; i+=2)

{

int k=j++;

char temp = a1[k];

while(k > i)

{

a1[k]=a1[k-1];

k--;

}

a1[k]=temp;

}

cout<<"\n\no/p : ";

for(i=0; i<strlen; i++)

{

cout<<a[i]<<" ";

}

}