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#include<iostream.h>
int main()
{
int a[10]={1,2,3,5,2,3,1,5,3,1};
int i;
int c[10]={0};
for(i = 0 ; i < 10 ; i++)
c[a[i]]++;
for(i=0;i<10;i++)
cout<<i<<": "<<c[i]<<endl;
return 0;
}
The running time of the Algorithm is O(n) but its taking an extra space of O(n). Can I do better?
Thanks!
No you can’t. That’s the best you can do.