[UVa] 10346 - Peter's Smokes

題意:
(from luckycat)


解法:
直接做。

注意:

程式碼:

	/**
	* Tittle: 10346 - Peter's Smokes
	* Author: Cheng-Shih, Wong
	* Date: 2015/07/08
	*/
	// include files
	#include <bits/stdc++.h>
	using namespace std;
	// definitions
	#define FOR(i,a,b) for( int i=(a),_n=(b); i<=_n; ++i )
	#define clr(x,v) memset( x, v, sizeof(x) )
	// declarations
	int n, k;
	// functions
	// main function
	int main( void )
	{
	while( cin >> n >> k ) {
	int ret = 0;
	int butts = 0;
	// solve
	while( n ) {
	ret += n;
	butts += n;
	n = (butts)/k;
	butts %= k;
	}
	// output
	cout << ret << endl;
	}
	return 0;
	}

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