算法（六） 常见算法题

1、喝汽水问题。每7个汽水瓶可以换一瓶汽水，输入为n瓶汽水，求得最后能喝到多少瓶汽水

public static int count(int n){
        return n+emptyCount(n);
    }
    public static int emptyCount(int m) {
        int empty;
        int currentStreamWater=m/7;
        if (m < 7) {
            return 0;
        }
        if (m % 7 == 0) {
            empty = currentStreamWater;
        } else {
            empty = currentStreamWater + m % 7;
        }
        return currentStreamWater+emptyCount(empty);
    }

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