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RSS订阅转载 DataFrame 各种表处理
http://blog.csdn.net/stevenkwong/article/details/52540605转载于:https://www.cnblogs.com/lmlyzxiao/p/7492653.html
2017-09-08 00:47:00
149
转载 CSUFT 编译原理实验四 LR(1)
1 #include <cstdio> 2 #include <cstring> 3 #include <iostream> 4 #include <stack> 5 #include <queue> 6 #include <map> 7 #include <al...
2016-06-29 14:22:00
234
转载 CSUFT 编译原理实验三 中缀表达式转逆波兰表达式求值
下面代码是完整版的 加入了单目减运算（即'-'负号 代码中用@符号代替）、浮点数运算、乘方运算。要用自己写的模板化代码可以参考下面链接http://blog.csdn.net/geekcoder/article/details/6829386#include <iostream>#include <cstdio>#include &...
2016-06-23 12:48:00
212
转载 CSUFT 编译原理实验二LL（1）文法分析
1 #include <cstdio> 2 #include <cstring> 3 #include <iostream> 4 #include <stack> 5 #include <queue> 6 #include <map> 7 #include <al...
2016-06-22 11:46:00
293
转载 CF div2 334 C
C. Alternative Thinkingtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputKevin has just recevied his disappoint...
2015-12-04 13:51:00
119
转载 CF div2 334 B
B. More Cowbelltime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputKevin Sun wants to move his precious collectio...
2015-12-04 13:45:00
127
转载 CF div2 334 A
A. Uncowed Forcestime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputKevin Sun has just finished competi...
2015-12-04 13:30:00
121
转载 CF div2 332 C
C. Day at the Beachtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputOne day Squidward, Spongebob and Patrick d...
2015-11-22 00:14:00
178
转载 CF div2 332 B
B. Spongebob and Joketime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputWhile Patrick was gone shopping, Spongeb...
2015-11-21 23:39:00
139
转载 CF div2 332 A
A. Patrick and Shoppingtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputToday Patrick waits for a visit from hi...
2015-11-21 23:31:00
96
转载 CF div2 331 C
C. Wilbur and Pointstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputWilbur is playing with a set ofnpoints ...
2015-11-20 00:53:00
118
转载 CF div2 331 B
B. Wilbur and Arraytime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputWilbur the pig is tinkering with arrays ag...
2015-11-20 00:51:00
132
转载 CF div2 331 A
A. Wilbur and Swimming Pooltime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputAfter making bad dives into...
2015-11-20 00:49:00
157
转载 poj 2065 还是gauss消元
1 #include <cstdio> 2 #include <cstring> 3 #include <iostream> 4 #include <queue> 5 #include <vector> 6 #include <stack> 7 #include <...
2015-11-12 15:35:00
120
转载 poj 3478 poj 3090（欧拉函数的应用）
3478题目意思是Farey序列是由一系列不能约分的分数a/b（0<a<b<=n且gcd(a,b)=1）按照递增的顺序组成的，然后给出了Fn的前几项，让你计算Fn中有多少个分数.很明显Fn中的数的个数就是分别与(2,3,4.....n-1,n)互质的数的个数的和。也就是求欧拉函数的前n项和。 1 #include <cstdio> 2 #...
2015-11-11 15:39:00
296
转载 poj 1284 求原根的个数（欧拉函数的应用）
用到一个结论：如果p是素数，则p有φ（p-1）个原根。然后就是直接求φ函数的值了 1 #include <cstdio> 2 #include <cstring> 3 #include <iostream> 4 #include <stack> 5 #include <queue> 6 #incl...
2015-11-11 15:17:00
155
转载 poj 2991 线段树
1 #include <cstdio> 2 #include <cstring> 3 #include <iostream> 4 #include <stack> 5 #include <queue> 6 #include <map> 7 #include <algorithm...
2015-11-09 00:25:00
114
转载 poj 1753 poj3185
两道题目类似，自己写的挫一直不对，后来祭出了kuangbin模板（枚举变元求最小解），慢慢练吧。。。贴出1753的代码 3185直接改改初始化就行了 1 #include <queue> 2 #include <set> 3 #include <map> 4 #include <cstring> 5...
2015-11-08 12:49:00
93
转载 poj 1222 高斯消元（改改模板）
先贴一下大牛博客里面的高斯消元专题http://blog.csdn.net/qiqijianglu/article/details/7945197然后这个题构造矩阵有点意思，比较有想法，构造出来就直接套模板了 1 #include <cstdio> 2 #include <cstring> 3 #include <iostream&...
2015-11-07 01:50:00
112
转载 poj 1830 高斯消元
终于会一点高斯消元了，认真学还是学的进去啊。。。。。。搞明白解异或方程的原理，然后构造出矩阵就好做了。模板题 1 #include <cstdio> 2 #include <cstring> 3 #include <iostream> 4 #include <stack> 5 #include <que...
2015-11-07 01:28:00
84
转载 poj 1320
Street NumbersTime Limit:1000MSMemory Limit:10000KTotal Submissions:2806Accepted:1565DescriptionA computer programmer lives in a street with houses numbe...
2015-11-04 23:17:00
170
转载 poj 1305
Fermat vs. PythagorasTime Limit:2000MSMemory Limit:10000KTotal Submissions:1450Accepted:846DescriptionComputer generated and assisted proofs and verifica...
2015-11-04 22:42:00
127
转载 poj 1091 解多元不定方程
跳蚤Time Limit:1000MSMemory Limit:10000KTotal Submissions:9225Accepted:2762DescriptionZ城市居住着很多只跳蚤。在Z城市周六生活频道有一个娱乐节目。一只跳蚤将被请上一个高空钢丝的正中央。钢丝很长，可以看作是无限长。节目主持人会...
2015-11-04 22:18:00
121
转载 二元一次不定方程
定义： a,b,c是整数，且ab!=0，那么形如ax+by=c的方程称为二元一次不定方程定理1： 设a,b是整数且 d = gcd(a,b) 如果d|c，那么返程存在无穷多个整数解，否则不存在整数解。这里大概可以发现二元一次不定方程和同余方程可以相互转化，如在a>0且b>0的条件下，求二元一次方程ax+by=c整数解等价于求一元线性同余方程ax≡c(mod b）的整数...
2015-11-04 21:00:00
445
转载 poj 3641
根据题目的定义来做，考quick_mod的应用，比较水 1 #include <cstdio> 2 #include <cstring> 3 #include <iostream> 4 #include <stack> 5 #include <queue> 6 #include <map&g...
2015-11-04 20:34:00
153
转载 hdu 1788
题目链接http://acm.hdu.edu.cn/showproblem.php?pid=1788其实有两种解法一种是转化为求同余方程组然后再解，第二种方法是根据同余定理推出 N+a≡0（mod Mi）有了这个式子，就知道这个题目意思就是求N个Mi的最小公倍数了 1 #include <cstdio> 2 #include <cstring>...
2015-11-03 22:07:00
320
转载 中国剩余定理的应用
设n>=2,m1,m2,....mn，是两两互质的正整数，记 M =∏mi,Mi= M/mi.则同余方程组 X≡a1（mod m1） X≡a2(mod m2) X≡an(mod mn)有对模M的唯一解 X≡∑aiMiMi’(mod M)上述就是中国剩余定理下面给出求此类同余方程组...
2015-11-03 20:56:00
320
转载 hud 3579 解同余方程的应用
Hello KikiTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2724Accepted Submission(s): 1008Problem DescriptionOne day I was shoppi...
2015-11-03 20:08:00
140
转载 poj 2115
题目链接 http://poj.org/problem?id=2115题目意思就解这样一个同余方程 A+CX≡B（mod）M 这里 M = 1<<k 跟上一篇的做法差不多。用扩展欧几里得做 1 #include <cstdio> 2 #include <cstring> 3 #include <iostream>...
2015-11-02 19:48:00
81
转载 poj 2891 扩展欧几里得解一元线性同余方程组
http://poj.org/problem?id=2891题意：选择K个不同的正整数a1,a2.....ak，对于某个整数m分别对ai求余对应整数ri，如果当选择a1,a2,....ak,那么m可由整数对组合（ai,ri）唯一确定。现在已知a1,a2,...ak以及所有的整数对（ai,ri）求最小的非负整数m的值。设 a,b为整数，且a(!Ξ)0(mod)m,则称...
2015-11-02 19:32:00
196
转载 CF div2 328 C
C. The Big Racetime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputVector Willman and Array Bolt are the two...
2015-11-02 10:51:00
117
转载 CF div2 328 B
B. The Monster and the Squirreltime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputAri the monster always wakes up...
2015-11-02 10:48:00
118
转载 CF div2 328 A
A. PawnChesstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputGalois is one of the strongest chess players...
2015-11-02 10:47:00
91
转载 CF div2 325 D
B. Phillip and Trainstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputThe mobile application store has a ...
2015-10-23 18:00:00
128
转载 CF div2 325 C
C. Gennady the Dentisttime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputGennady is one of the best chi...
2015-10-13 00:40:00
179
转载 CF div2 325 B
B. Laurenty and Shoptime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputA little boy Laurenty has been p...
2015-10-13 00:38:00
189
转载 CF div2 325 A
A. Alena's Scheduletime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputAlena has successfully passed the entrance ...
2015-10-13 00:36:00
177
转载 CF div2 322 C
C. Developing Skillstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputPetya loves computer games. Finally ...
2015-09-29 19:54:00
121
转载 CF div2 322 B
B. Luxurious Housestime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputThe capital of Berland has n multiflo...
2015-09-29 13:27:00
132
转载 CF div2 322 A
A. Vasya the Hipstertime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputOne day Vasya the Hipster decided to...
2015-09-29 13:19:00
92
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