题意理解错了
by zrl123456 @ 2023-11-10 20:50:12
```cpp
#include <bits/stdc++.h>
using namespace std;
int n,k,l;
long long sum;
int main(){
scanf("%d%d",&n,&k);
sum+=n;
while(n>=k){
l=n%k;
n/=k;
sum+=n;
n+=l;
}
printf("%d",sum);
return 0;
}
```
by zrl123456 @ 2023-11-10 20:50:51
小学解法~~自己研究~~
```cpp
#include<bits/stdc++.h>
using namespace std;
int main(){
ios::sync_with_stdio(false), cin.tie(0);
int n, k;
cin>>n>>k;
cout<<n + (n - 1) / (k - 1);
return 0;
}
```
by lzy_Dennis @ 2023-12-05 21:49:14