$sudo apt-get install python3-matplotlib gyf@gyf-VirtualBox:~$ python3Python 3.6.9 (default, Nov  7 2019, 10:44:02) [GCC 8.3.0] on linuxType "help", "copyright", "credits" or "license" for more information.>>&…

题目链接 http://codeforces.com/problemset/gymProblem/100703/I Description standard input/outputStatements As a matter of fact, Dragon knows what Prince is interested in now. Prince uses to spend his rare off days learning different courses and trainings.…

这题标程是错的,网上很多题解也是错的. http://acm.hdu.edu.cn/showproblem.php?pid=4975 2014 Multi-University Training Contest 10 A simple Gaussian elimination problem. Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s)…

__author__ = 'dell' import surveyimport Pmfimport matplotlib.pyplot as pyplot table = survey.Pregnancies()table.ReadRecords()print "Number of pregnancies ", len(table.records) firsts = survey.Pregnancies()others = survey.Pregnancies() for p in t…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4975 Problem Description Dragon is studying math. One day, he drew a table with several rows and columns, randomly wrote numbers on each elements of the table. Then he counted the sum of each row and col…

A simple Gaussian elimination problem. Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 728 Accepted Submission(s): 241 Problem Description Dragon is studying math. One day, he drew a table with sev…

http://acm.hdu.edu.cn/showproblem.php?pid=4975 A simple Gaussian elimination problem. Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 579    Accepted Submission(s): 194 Problem Description Drag…

这段时间做了用Python做了一个科学计算的项目,项目中用到了很多的第三方Python库,包括PyQt.traits.traitsui.matplotlib.pyface.table.numpy.tvtk等等.Python打包traits和traitsui很麻烦,选用了py2exe.bbfreeze等打包工具,最后在google的帮助下使用了py2exe解决了问题.其主要难点是要知道你的项目中使用到的python库,然后在includes列表中添加这些Python库,以便能正确打包项目.#!/u…

和HDOJ4888是一样的问题,最大流推断多解 1.把ISAP卡的根本出不来结果,仅仅能把全为0或者全为满流的给特判掉...... 2.在残量网络中找大于2的圈要用一种类似tarjian的方法从汇点開始找,推断哪些点没有到汇点 A simple Gaussian elimination problem. Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Total Submiss…

A simple Gaussian elimination problem. Time Limit: 1000ms Memory Limit: 65536KB This problem will be judged on HDU. Original ID: 497564-bit integer IO format: %I64d      Java class name: Main Dragon is studying math. One day, he drew a table with sev…