[UVa]11689:Soda Surpler

這題要注意的是：換完後的汽水罐，等喝完後還可以再換，所以不是只能換一次這樣。

[C](0.012)

	#include<stdio.h>
	int main()
	{
	int N;
	while( scanf( "%d", &N ) != EOF )
	{
	int e, f, c;
	int i;
	for( i = 0 ; i < N ; i++ )
	{
	int soda = 0;
	scanf( "%d%d%d", &e, &f, &c );
	int temp = (e+f)/c, other = (e+f)%c, tmp;
	while( temp )
	{
	soda += temp;
	tmp = (temp+other)%c;
	temp = (temp+other)/c;
	other = tmp;
	}
	printf( "%d\n", soda );
	}
	}
	return 0;
	}

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