poor-pigs(非常好的思路)
https://leetcode.com/problems/poor-pigs/
package com.company;
class Solution {
// 下面第二种做法貌似是OJ原来的做法,但是是错误的
// 看了这个解答 https://discuss.leetcode.com/topic/66856/major-flaw-in-current-algorithm-fixed
public int poorPigs(int buckets, int minutesToDie, int minutesToTest) {
// 有5种状态
int circle = minutesToTest / minutesToDie + ;
int ret = ;
long num = ;
while (num < buckets) {
num *= circle;
ret++;
}
return ret;
}
// 以下答案不太对
public int poorPigs2(int buckets, int minutesToDie, int minutesToTest) {
if (minutesToDie == ) {
return ;
}
int circle = minutesToTest / minutesToDie;
if (circle == ) {
return ;
}
int batch = (buckets + (circle - )) / circle;
int ret = ;
long num = ;
while (num < batch) {
num *= ;
ret++;
}
if (num == batch && circle != ) {
return ret + ;
}
else {
return ret;
}
}
}
public class Main {
public static void main(String[] args) throws InterruptedException {
System.out.println("Hello!");
Solution solution = new Solution();
// Your Codec object will be instantiated and called as such:
int ret = solution.poorPigs(, , );
System.out.printf("ret:%d\n", ret);
System.out.println();
}
}
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