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OI-codes/Luogu/P1150/P1150.cpp

11 lines
162 B
C++

#include <bits/stdc++.h>
using namespace std;
int main() {
int n, k, ans = 0;
cin >> n >> k;
cout << n + (n - 1) / (k - 1) << endl;
return 0;
}