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题解 | #二叉树的镜像#

import java.util.*; /* * public class TreeNode { * int val = 0; * TreeNode left = null; * TreeNode right = null; * public TreeNode(int v...

2023-11-09

0 173

题解 | #你能活多少秒#

#include <stdio.h> int main() { long int a=0,b=0; scanf("%ld",&a); printf("%ld",a*(long)3.156e7);//3.156e7=31560000.0,类型为double,因此必须前加(long)...

C

2021-12-15

3 584