STL之nth_element用法

Posted on 2020-06-29 In Learning Valine:

做题的时候遇到了一个有意思的问题

问:

给你一个序列让你求第k大数。

STL库里有直接可以对这个进行操作的函数，今天来梳理一下…

Codeforces-Round-650-Div-3

Posted on 2020-06-17 Edited on 2020-06-18 In Codeforces Valine:

菜鸡的$div3$补题现场……

Codeforces-Round-649-Div-2

Posted on 2020-06-14 Edited on 2020-06-15 In Codeforces Valine:

菜鸡的$div2$补题现场……

nowcoder-入门课2

Posted on 2020-06-12 Edited on 2020-06-13 In nowcoder Valine:

递归分治 STL

nowcoder_入门课1

Posted on 2020-05-20 Edited on 2020-06-07 In nowcoder Valine:

枚举贪心暴力前缀和

Codeforces-Round-640-Div-4

Posted on 2020-05-10 In Codeforces Valine:

菜鸡的$div4$补题现场……

(真就尼玛见证历史)……

Codeforces-Round-636-Div-3

Posted on 2020-04-26 Edited on 2020-05-10 In Codeforces Valine:

菜鸡的$div3$补题现场……

Codeforces-Round-632-Div-2

Posted on 2020-04-11 Edited on 2020-04-16 In Codeforces Valine:

菜鸡的$div2$补题现场……

PTA-1031-查验身份证

Posted on 2020-04-10 In PTA Valine:

题目链接

https://pintia.cn/problem-sets/994805260223102976/problems/994805290334011392

数据范围:

N <= 100

样例:

Input:

first:
4
320124198808240056
12010X198901011234
110108196711301866
37070419881216001X
second:
2
320124198808240056
110108196711301862

Output:

first:
12010X198901011234
110108196711301866
37070419881216001X
second:
All passed

Codeforces Round #631(Div. 2)

Posted on 2020-04-08 Edited on 2020-04-15 In Codeforces Valine:

菜鸡的$div2$补题现场……