My code:
public class Solution {
int[] nums;
int result = Integer.MAX_VALUE;
Random r;
public Solution(int[] nums) {
this.nums = nums;
r = new Random();
}
public int pick(int target) {
int c = 0;
for (int i = 0; i < nums.length; i++) {
if (nums[i] == target) {
c++;
if (r.nextInt(c) == 0) {
result = i;
}
}
}
return result;
}
}
/**
* Your Solution object will be instantiated and called as such:
* Solution obj = new Solution(nums);
* int param_1 = obj.pick(target);
*/
差不多的做法。
Anyway, Good luck, Richardo! -- 10/12/2016
