Answer Posted / rahul shandilya

#include<iostream>
#include<vector>
using namespace std;
int main()
{
char str[]="rahul shandilya is going";

string ans;
int n=0;
while(str[n]!='\0')
n++;
//cout<<n;
bool flag=true;
for(int i=n-1;i>=0;i--)
{
if(str[i]==' ')
{
int m=i+1;
// cout<<m<<" ";
string temp;
while(str[m]!=' ' && m<n)
{
temp+=str[m];
m++;
}
//cout<<m<<" ";
if(flag)
{
ans+=temp;
flag=false;
continue;
}
if(flag==false)
{
ans+=' ';
ans+=temp;
}
}
}

cout<<ans;
system("pause");
return 0;
}
//tell me if there is a batter way to do it,i dont think my
//solution is efficent

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