A. Shift Sort Given a binary string s of length n, you can perform the following operation any number of times: choose three indices 1 ≤ i < j < k ≤ n and cyclically shift the values s_i, s_j, s_k to the left or to the right. The goal is to find the minimum number of operations required to sor...
0 Introduction Over the past few years, the requirements and difficulty of graduation projects have been continuously increasing. Traditional graduation project topics lack innovation and highlights, often failing to meet the requirements of graduation defense. In recent years, many junior students...
import math import numpy as np import pandas as pd import random from docx import Document import re random.seed(0) pd.options.display.max_rows = None # --------------------------- Configuration parameters --------------------------- doc_path = r"simple_word.docx" learning_rate = 0.01 embe...
List comprehensions provide a convenient way to create lists in Python, but they come with a significant drawback: the entire list is stored in memory. For large datasets, this can quickly exhaust available resources. Consider a scenario where a list of one million items is created, but only the fi...
The Windows Subsystem for Linux (WSL) provides a compatibility layer for running native Linux ELF64 binaries directly on Windows 10. This integration allows developers to utilize Linux command-line tools and applications without the overhead of a traditional virtual machine. Activating Developer Mod...
Location-based services (LBS) often require finding points of interest (POIs) near a given location—such as nearby users or landmarks. This functionality relies on the coordinates of stored POIs (relatively static data) and the dynamic query point provided at runtime. 1. Distance Calculation Using S...
Introduction to Strongly Connected Components A Strongly Connected Component (SCC) of a directed graph is a maximal subgraph where every vertex is reachable from every other vertex. In simpler terms, for any two nodes \(u\) and \(v\) with in the same SCC, there exists a path from \(u\) to \(v\) and...
notify(): Wakes up a single thread waiting on this object's monitor. The thread returns from wait only after it re-acquires the lock. If no lock is obtained, the thread goes back to the WAITING state. notifyAll(): Wakes up all threads waiting on this object's monitor. wait(): Causes the current thr...
The Ames Housing dataset compriess 2,930 property records across Iowa, featuring 82 distinct attributes spanning nominal, ordinal, discrete, and continuous scales. Each record corresponds to residential sales between 2006 and 2010. Target variable: SalePrice. The dataset is partitioned into a primar...
The input consists of an arithmetic expression in the form a + b or a - b. Parse the expression and output the computed result. int main() { int operand1, operand2; char operation; std::cin >> operand1 >> operation >> operand2; if (operation == '+') { std::cout << operand1 +...