Given numBottles
full water bottles, you can exchange numExchange
empty water bottles for one full water bottle.
The operation of drinking a full water bottle turns it into an empty bottle.
Return the maximum number of water bottles you can drink.
Example 1:
Input: numBottles = 9, numExchange = 3 Output: 13 Explanation: You can exchange 3 empty bottles to get 1 full water bottle. Number of water bottles you can drink: 9 + 3 + 1 = 13.
Example 2:
Input: numBottles = 15, numExchange = 4 Output: 19 Explanation: You can exchange 4 empty bottles to get 1 full water bottle. Number of water bottles you can drink: 15 + 3 + 1 = 19.
Example 3:
Input: numBottles = 5, numExchange = 5 Output: 6
Example 4:
Input: numBottles = 2, numExchange = 3 Output: 2
Constraints:
1 <= numBottles <= 100
2 <= numExchange <= 100
class Solution:
def numWaterBottles(self, numBottles: int, numExchange: int) -> int:
ans = numBottles
while numBottles >= numExchange:
numBottles -= (numExchange - 1)
ans += 1
return ans
class Solution {
public int numWaterBottles(int numBottles, int numExchange) {
int ans = numBottles;
while (numBottles >= numExchange) {
numBottles -= (numExchange - 1);
++ans;
}
return ans;
}
}
class Solution {
public:
int numWaterBottles(int numBottles, int numExchange) {
int ans = numBottles;
while (numBottles >= numExchange)
{
numBottles -= (numExchange - 1);
++ans;
}
return ans;
}
};
func numWaterBottles(numBottles int, numExchange int) int {
ans := numBottles
for numBottles >= numExchange {
numBottles -= (numExchange - 1)
ans++
}
return ans
}