Old_fox @ 2018-07-08 09:45:32
using namespace std; int y(int a,int b) { int n; if(a<b) return a; else n=a; a=a/b; return n+y(a,b); } int main() { int n,k; cin>>n>>k; cout<<y(n,k); return 0; }
by Thor_Odinson @ 2018-07-24 16:25:39
#include<bits/stdc++.h>
using namespace std;
int main()
{
int n,k;
cin>>n>>k;
cout<<n+(n-1)/(k-1);
return 0;
}