数学-公式推导
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snowy_smile
终于在ICPC World Final里拿到了气球！
再努力一点吧，坚持下去吧，梦想是会实现的！ 人生会有低谷，但我更相信，未来也会有更多梦想能够实现~
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【Codeforces Round 332 (Div 2)D】【数学 公式推导】Spongebob and Squares 正方形数量恰好为x个的所有大矩形
D. Spongebob and Squarestime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputSpongebob is already tired trying to原创 2015-12-02 12:14:37 · 699 阅读 · 0 评论 -
【HDU5750 BestCoder Round 84D】【数学 贪心 复杂度计算】Dertouzos 范围有多少数的最大真约数为d
DertouzosAccepts: 76Submissions: 1357Time Limit: 7000/3500 MS (Java/Others)Memory Limit: 131072/131072 K (Java/Others)问题描述正整数xxx称为nnn的positive proper divisor, 当且仅当x∣nx | nx∣n并且1≤原创 2016-07-25 09:34:40 · 827 阅读 · 0 评论 -
【Codeforces Round 364 (Div 2)D】【二分答案 or 公式推导】As Fast As Possible 小朋友乘校车去远足最短到达时间
D As Fast As Possibletime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputOn vacations n pupils decided to go on原创 2016-07-26 08:51:54 · 1245 阅读 · 0 评论 -
【Codeforces Round 362 (Div 2)E】【公式推导+快速幂+费马小定理】PLEASE a[i]=(1-a[i-1])除2下n次项 n为连乘数
E. PLEASEtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputAs we all know Barney's job is "PLEASE" and he has原创 2016-07-28 09:46:18 · 1251 阅读 · 0 评论 -
【HDU5734 2016 Multi-University Training Contest 2A】【公式代入推导】Acperience n维向量各有加减最小模长
AcperienceTime Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 993 Accepted Submission(s): 532Problem DescriptionDeep neural networks原创 2016-07-28 09:50:01 · 685 阅读 · 0 评论 -
【Codeforces Round 370 (Div 2) E】【线段树 等比数列 区间合并】Memory and Casinos 赌场区间[l,r] l进r先出的概率
E. Memory and Casinostime limit per test4 secondsmemory limit per test512 megabytesinputstandard inputoutputstandard outputThere are n casinos lined in a row. I原创 2016-09-12 07:11:48 · 1897 阅读 · 0 评论 -
【2017年 腾讯校招笔试】【数位DP】 + 【解方程 贪心 正难则反】
【2017年 腾讯校招笔试 A】【数位DP】2的幂次方的数字各2个，问你构成n的不同方案数#include#include#include#include#include#include#include#include#include#include#include#include#includeusing namespace std;void fre() {原创 2017-09-15 17:17:51 · 1010 阅读 · 0 评论