A number sequence is defined as follows: f(1) = 1, f(2) = 1, f(n) = (A * f(n - 1) + B * f(n - 2)) mod 7. Given A, B, and n, you are to calculate the value of f(n). 题意:给出一个递推公式,求第N项。 题解:开始试图找出一个能够直接算的递
1005. Spell It Right (20) 时间限制 400 ms 内存限制 65536 kB 代码长度限制 16000 B 判题程序 Standard 作者 CHEN, Yue Given a non-negative integer N, your task is to compute the sum of all the
题目链接:点击打开链接 题目大意:A number sequence is defined as follows: f(1) = 1, f(2) = 1, f(n) = (A * f(n - 1) + B * f(n - 2)) mod 7. Given A, B, and n, you are to calculate the value of f(n). 题目分析:一般数学题:1
1005. K 次取反后最大化的数组和 - 力扣(LeetCode) class Solution {public int largestSumAfterKNegations(int[] nums, int k) {Arrays.sort(nums);int i = 0;while (i < nums.length && nums[i] < 0 && k > 0) {nu
这题容易,所以题意不说了。 说说个人感觉吧,刚开始我已经编对了,但是交了多次改了多次,还是WA,我看都快无语了,后面检查了不下10次,才看出输出的时候少了个句号,简直无语完,ORZ…… 代码如下: #include<iostream> using namespace std; int main() { int t,i; cin>>t; for(i=0;i<t;i++)