Noip2006-2018 improvement group preliminary test questions improvement procedure questions csp-s 2019 2020 preliminary test questions improvement procedure questions

NOIP 2006 Improve the group preliminary test questions and improve the program questions 　5.1 Selective arrangement

NOIP 2006 Improve the group preliminary test questions and improve the program questions 　5.2 TSP The crossover operator of the problem

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NOIP 2007 Improve the group preliminary test questions and improve the program questions 　5.1（ Gray code ,Gray Code）

NOIP 2007 Improve the group preliminary test questions and improve the program questions 　5.2 Continuous postage problem

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NOIP 2008 Improve the group preliminary test questions and improve the program questions 　5.1 Find the first k Large number

NOIP 2008 Improve the group preliminary test questions and improve the program questions 　5.2 The number in the matrix

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NOIP 2009 Improve the group preliminary test questions and improve the program questions 5.1 Maximum continuous subsegment sum

NOIP 2009 Improve the group preliminary test questions and improve the program questions 　5.2 Look for an arithmetic sequence

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NOIP 2010 Improve the group preliminary test questions and improve the program questions 5.1 The problem of crossing the river

NOIP 2010 Improve the group preliminary test questions and improve the program questions 5.2 Beacon transmission Insertion and deletion of binary heap

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NOIP 2011 Improve the group preliminary test questions and improve the program questions 5.1 Large integer square

NOIP 2011 Improve the group preliminary test questions and improve the program questions 5.2 Cartesian tree

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NOIP 2012 Improve the group preliminary test questions and improve the program questions 5.1 Number of permutations

NOIP 2012 Improve the group preliminary test questions and improve the program questions 5.2( New shell stack )

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NOIP 2013 Improve the group preliminary test questions and improve the program questions 5.1（ Sequence rearrangement ）

NOIP 2013 Improve the group preliminary test questions and improve the program questions 5.2 Binary sequence

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NOIP 2014 Improve the group preliminary test questions and improve the program questions 5.1 Dual stack analog array

NOIP 2014 Improve the group preliminary test questions and improve the program questions 5.2 The maximum matrix and

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NOIP 2015 Improve the group preliminary test questions and improve the program questions 5.1 The maximum sum of Gemini sequences

NOIP 2015 Improve the group preliminary test questions and improve the program questions 5.2 Shortest path problem

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NOIP2016 Improve the group preliminary test questions _ Perfect the program 5.1 To make friends Quick line up

NOIP2016 Improve the group preliminary test questions _ Perfect the program 5.2 Traffic disruption SPFA

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NOIP 2017 Improve the group preliminary test questions _ Perfect the program 5.1 Division of large integers

NOIP 2017 Improve the group preliminary test questions _ Perfect the program 5.2 The longest path

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NOIP2018 Preliminary improvement group C++ Language test questions Perfect the program T1_5.1 Double linked list

NOIP2018 Preliminary improvement group C++ Language test questions Perfect the program T2   A strange DP

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CSP 2019 Improve the first round of the group The first 19 topic 02(2020.10.03) greedy enumeration

CSP 2019 Improve the first round of the group The first 20 topic 02- With resolution Shape pressure gauge

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2020 CSP-S Preliminaries The first 19 topic Fractional backpack （ see 《 Advanced guide to algorithm competition 》P181）

2020 CSP-S Preliminaries The first 20 topic -- Classic balanced programming