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2020年(共84篇)
11-07
牛客练习赛72-C brz的序列 (下凸壳,斜率优化)
10-10
牛客练习赛71 B-烙印 (几何)
06-25
[Educational Codeforces Round 56 (Rated for Div. 2)] —G. Multidimensional Queries(二进制状压,线段树)
06-19
哈尔滨理工大学软件与微电子学院程序设计竞赛(同步赛)(AK题解)
来自专栏
06-19
洛谷P3400 仓鼠窝(单调栈)
06-19
Codeforces Round #628 (Div. 2)] D-Ehab the Xorcist
06-12
牛客练习赛65 - A 最值序列 (贪心)
来自专栏
06-12
牛客练习赛65 - C 二维动点 (几何,思维)
来自专栏
06-12
牛客练习赛65 - C 二维动点 (几何,思维)
06-03
2015 HIAST Collegiate Programming Contest] 题解(AK)
05-31
“科林明伦杯”哈尔滨理工大学第十届程序设计竞赛(同步赛) - G养花
05-23
牛客练习赛64 D-宝石装箱(容斥定律,背包)
05-17
第十七届同济大学程序设计预选赛暨高校网络友谊赛 C-张老师的旅行
05-15
[Codeforces Round #642 (Div. 3)] ABCDEF题解
05-07
[NCD 2019] G. Ali and the Breakfast (解析几何)
05-05
[AtCoder Beginner Contest 165] E - Rotation Matching (构造)
04-30
[2019 ICPC Universidad Nacional de Colombia Programming Contest] 题解
04-29
[Educational Codeforces Round 86 (Rated for Div. 2)] E. Placing Rooks (组合数学,容斥定律)
04-28
[AtCoder Beginner Contest 164] -E - Two Currencies (分层最短路)
04-24
牛客算法周周练3/POJ - 3614 E -Sunscreen(贪心,优先队列)
来自专栏
04-24
牛客算法周周练3 C -小雨坐地铁(分层最短路)
来自专栏
04-24
牛客算法周周练3 C -小雨坐地铁(分层最短路)
04-22
[Codeforces Round #636 (Div. 3)] E. Weights Distributing (BFS+最短路+贪心)
04-21
[AtCoder Beginner Contest 163] **F - path pass i** (树型dfs,容斥定律)
04-21
AtCoder Beginner Contest 163 **E - Active Infants** (DP)
04-19
二维ST表模板
04-17
牛客算法周周练2 - B -Music Problem (背包+bitset优化)
04-11
牛客练习赛61 E-相似的子串(hash+二分)
来自专栏
04-11
牛客练习赛61 E-相似的子串(hash+二分)
04-06
AtCoder Beginner Contest 151 *F - Enclose All* (最小圆覆盖)
04-06
[Codeforces Round #320 (Div. 2) -E. Weakness and Poorness (三分/二分)
04-04
[Codeforces Round #320 (Div. 2) C. A Problem about Polyline (数学)
04-01
[Codeforces Round #630 (Div. 2)] - E. Height All the Same (组合数学)
03-21
Best Reward [HDU - 3613 ] (manacher算法)
03-18
[Educational Codeforces Round 72] A. Creating a Character (简单数学)
03-11
[Codeforces Round #626 (Div. 2, based on Moscow Open Olympiad in Informatics)] -D. Present(异或性质,按位拆分,树桩数组)
03-10
[Educational Codeforces Round 83 ] E. Array Shrinking - (区间DP)
03-09
[AtCoder Beginner Contest 158] - F - Removing Robots (线段树+DP)
03-05
[CodeCraft-20 (Div. 2)]- E. Team Building (状压DP)
03-04
[Ozon Tech Challenge 2020 (Div.1 + Div.2, Rated]-E. Kuroni and the Score Distribution(构造)
03-04
[Ozon Tech Challenge 2020 (Div.1 + Div.2, Rated]-D. Kuroni and the Celebration(交互题+树的性质)
03-03
[AtCoder Beginner Contest 151] -E - Max-Min Sums(预处理组合数学,贡献)
03-01
牛客练习赛58 F-XOR TREE(结论+树链剖分+线段树)
来自专栏
03-01
牛客练习赛58 F-XOR TREE(结论+树链剖分+线段树)
02-27
AtCoder Beginner Contest 152 - F - Tree and Constraints (容斥定理+树上路径的性质)
02-24
[Codeforces Round #622 (Div. 2)] - C2. Skyscrapers (hard version) (单调栈)
02-22
2018牛客国庆集训派对Day1 D-Love Live! (01字典数+树上启发式合并/静态链分治)
02-17
[Codeforces Round #620 (Div. 2)] E. 1-Trees and Queries(树,LCA,奇偶性)
02-17
AtCoder Beginner Contest 155 - D - Pairs ,-E - Payment 题解
来自专栏
02-17
AtCoder Beginner Contest 155 - D - Pairs ,-E - Payment 题解
02-14
[Educational Codeforces Round 82 (Rated for Div. 2)] D. Fill The Bag (二进制拆分,贪心)
02-13
C++ 开3次方根方法
02-12
树状数组 进阶篇:区间修改,区间查询
来自专栏
02-12
树状数组 进阶篇:区间修改,区间查询
02-12
2020牛客寒假算法基础集训营4 H- 坐火车 (桶,树状数组)
02-10
2020牛客寒假算法基础集训营3 B-牛牛的DRB迷宫II (构造)
02-09
AtCoder Beginner Contest 063 - D - Widespread (二分答案)
02-07
2020牛客寒假算法基础集训营2 - J 求函数 (线段树)
02-05
[Codeforces Round #617 (Div. 3)] 题解 A,B,C,D,E1,E2,F
02-02
[Codeforces Round #611 (Div. 3)] C. Friends and Gifts (随机大法好)
02-02
[Codeforces Round #611 (Div. 3)] C. Friends and Gifts (随机大法好)
来自专栏
02-02
[Hello 2020] D. New Year and Conference (ST表,排序)
02-02
[Hello 2020] D. New Year and Conference (ST表,排序)
来自专栏
02-01
[Hello 2020] C. New Year and Permutation (组合数学)
02-01
[Hello 2020] C. New Year and Permutation (组合数学)
来自专栏
02-01
[Educational Codeforces Round 81 (Rated for Div. 2)]E. Permutation Separation(线段树,思维,前缀和)
02-01
[Educational Codeforces Round 81 (Rated for Div. 2)]E. Permutation Separation(线段树,思维,前缀和)
来自专栏
01-31
Educational Codeforces Round 81 (Rated for Div. 2)] D. Same GCDs (数论,因子分解,容斥定理)
01-31
Educational Codeforces Round 81 (Rated for Div. 2)] D. Same GCDs (数论,因子分解,容斥定理)
来自专栏
01-30
Educational Codeforces Round 81 (Rated for Div. 2) C. Obtain The String(序列自动机,贪心)
01-30
Educational Codeforces Round 81 (Rated for Div. 2) C. Obtain The String(序列自动机,贪心)
来自专栏
01-30
Educational Codeforces Round 81 B. Infinite Prefixes(数学,字符串,思维)
01-30
Educational Codeforces Round 81 B. Infinite Prefixes(数学,字符串,思维)
来自专栏
01-28
Codeforces Round #615 (Div. 3) F. Three Paths on a Tree(树的直径,dfs)
01-28
Codeforces Round #615 (Div. 3) F. Three Paths on a Tree(树的直径,dfs)
01-19
牛客挑战赛36 C 纸飞机(最小链覆盖,LIS+思维,详细题解)
01-19
牛客挑战赛36 C 纸飞机(最小链覆盖,LIS+思维,详细题解)
01-18
Codeforces Round #612 (Div. 2) C. Garland 动态规划
01-18
Codeforces Round #612 (Div. 2) D. Numbers on Tree 构造,树dfs
01-18
Codeforces Round #612 (Div. 2) D. Numbers on Tree 构造,树dfs
01-17
关于set/map 等容器对string类的时间性能指标对比
01-17
关于set/map 等容器对string类的时间性能指标对比
01-16
Educational Codeforces Round 80 (Rated for Div. 2) ABCDE 题解
01-16
Educational Codeforces Round 80 (Rated for Div. 2) ABCDE 题解
2019年(共774篇)