unsorted专题

关于std::unsorted_map和std::map

一. 前言   本文总结std库中unsorted_map和map的区别。 二. 区别示意图 mapunordered_mapOrderingincreasing order ( by default )no orderingImplementationSelf balancing BST ( like RBT )Hash TableSearch Timelog(n)average O(1)

c++ 报错 malloc(): unsorted double linked list corrupted

malloc(): unsorted double linked list corrupted   报这个错误,是因为 在 代码 中,指针指向了  已经释放的内存(临时变量)等。

how2heap-2.23-06-unsorted_bin_into_stack

#include <stdio.h>#include <stdlib.h>#include <stdint.h>#include <string.h>// 从 unsorted bin 的 bk 去找合适的void jackpot(){ fprintf(stderr, "Nice jump d00d\n"); exit(0); }int main() {intptr_t stack_buf

LintCode Kth Smallest Number in A Unsorted Array

description: Find the kth smallest numbers in an unsorted integer array. Have you met this question in a real interview? Yes Example Given [3, 4, 1, 2, 5], k = 3, the 3rd smallest numbers are [1,

Kth Smallest Numbers in Unsorted Array(分别使用快排、归并、快选三种方法)

Find the kth smallest numbers in an unsorted integer array. Have you met this question in a real interview? Yes Example Given [3, 4, 1, 2, 5], k = 3, the 3rd smallest numbers are [1, 2, 3]. 快排 pu

2018 Benelux Algorithm Programming Contest (BAPC 18) E.Entirely Unsorted Sequences(计数dp)

题目 思路来源 https://www.cnblogs.com/MXang/p/10182791.html 题解 看人家口胡看不懂,看代码就看懂了 dp[i]表示前i的至少一个有序的方案数,即不合法 ans[i]表示前i的均无序的方案数,即合法 c[l][r]表示[l,r]可重集全排列方案数 ,预处理一下 转移的时候,考虑枚举第一个不合法(即有序)的位置即可 dp总是这样的自