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如何在ggplot2中使用spline平滑算法
smooth.spline2 <- function(formula, data, ...) {mat <- model.frame(formula, data)smooth.spline(mat[, 2], mat[, 1])}predictdf.smooth.spline <- function...
分类:其他好文   时间:2014-06-28 14:58:36    阅读次数:351
杭电OJ(HDU)-ACMSteps-Chapter Three-《FatMouse' Trade》《今年暑假不AC》《排名》《开门人和关门人》
杭电OJ(HDU)-ACMSteps-Chapter Three-《FatMouse' Trade》《今年暑假不AC》《排名》《开门人和关门人》...
分类:其他好文   时间:2014-06-25 19:50:46    阅读次数:227
2014百度之星资格赛题解
比赛链接:点击打开链接,,杭电把比赛关了代码都找不到了。。无责任民科还是mark一下好了。。HDU 4823Energy Conversion把式子变换一下发现是一个等比数列,高速幂就可以。#include#include#include#includeusing namespace std;#de...
分类:其他好文   时间:2014-06-23 00:10:42    阅读次数:333
POJ 1952 BUY LOW, BUY LOWER
BUY LOW, BUY LOWER Time Limit: 1000MS   Memory Limit: 30000K Total Submissions: 8311   Accepted: 2883 Description The advice to "buy low" is half the formula to success i...
分类:其他好文   时间:2014-06-21 20:49:18    阅读次数:304
Big Number------HDOJ杭电1212(大数运算)
Problem DescriptionAs we know, Big Number is always troublesome. But it's really important in our ACM. And today, your task is to write a program to c...
分类:其他好文   时间:2014-06-18 21:09:31    阅读次数:303
杭电 3711 Binary Number
Binary Number Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 1287    Accepted Submission(s): 807 Problem Description For 2 non-negativ...
分类:其他好文   时间:2014-06-15 18:17:35    阅读次数:204
杭电 2602 Bone Collector
Bone Collector Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 27413    Accepted Submission(s): 11154 Problem Description Many years ag...
分类:其他好文   时间:2014-06-15 13:28:47    阅读次数:142
杭电 1203 I NEED A OFFER!
I NEED A OFFER! Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 15266    Accepted Submission(s): 6031 Problem Description Speakless很早就想...
分类:其他好文   时间:2014-06-15 12:14:45    阅读次数:204
杭电OJ(HDU)-ACMSteps-Chapter Two-《An Easy Task》《Buildings》《decimal system》《Vowel Counting》
http://acm.hdu.edu.cn/game/entry/problem/list.php?chapterid=1&sectionid=21.2.5 #include /* 题意:找闰年。 if((i%4==0 && i%100!=0) || i%400==0)count++; 3 2005 25 1855 12 2004 10000 2108 1904 43236 */ int ma...
分类:其他好文   时间:2014-06-14 06:32:08    阅读次数:320
杭电 1711 Number Sequence
Number Sequence Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 10239    Accepted Submission(s): 4656 Problem Description Given two se...
分类:其他好文   时间:2014-06-14 00:22:38    阅读次数:243
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