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The esmre library offers an efficient solution for processing large sets of regular expressions or multi-pattern searches within text data. By leveraging the Aho-Corasick automaton algorithm, it significantly reduces the computational overhead compared to iterating through individual regex patterns. Installation Install the package directly via ...

Problem A Subtract two itnegers and output the result. int a, b; cin >> a >> b; cout << a - b << endl; Problem B Problem Statement Given an integer (n), compute the value of (F(n)): $$F(n) = \begin{cases} 0 & n < 100 \ \lfloor \frac{n}{100} \rfloor & 100 \leq n \leq 5000 \ \lfloor \frac{n}{1000} \rfloor + 50 ...

Mock Contest Problem 1 Problem Overview Converting the constraints reveals two key requirements for any valid set: Must include the maximum power of each prime factor of n Must contain at least one pair of distinct prime factors Since the number of prime factors is much smaller than log(n), brute force search works effectively. Approach: Incl ...

Display the first N+2 digits of π (including the decimal point). #include <iostream> #include <string> const std::string PI_DIGITS = "3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679"; int main() { int digits; std::cin >> digits; std::cout << P ...

Maximum Square Area in Rectangle IntersectionWhen given coordinates for the bottom-left and top-right corners of multiple axis-aligned rectangles, the goal is to determine the area of the largest square that can fit entirely within the intersection of any two rectangles. The core logic involves identifying the overlapping region. If two rectang ...

Given three strings A, B, and C, determine whether the last character of A matches the first character of B, and the last character of B matches the first character of C. Each string consists of lowercase letters and is provided on a single line separated by spaces. Solution Approach: Extract the relevant characters and perform two comparisons. ...

Problem Description Given a number triangle, where each number is placed above two numbers in the row below, find the maximum possible sum of a path starting from the top and moving to adjacent numbers on the row below until the base of the triangle is reached. For example, consider the following triangle: 7 3 8 8 1 0 2 7 4 4 4 5 2 6 ...

Matchstick Equation Problem Problem Description Given n matchsticks, determine how many equations of the form "A+B=C" can be formed. A, B, and C are integers constructed using matchsticks (if non-zero, the highest digit cannot be 0). The matchstick requirements for digits 0-9 are provided in a reference diagram. Constraints: The plus ...

A student takes a multiple-choice test with an n x n answer sheet. Each cell holds one of four options: A, B, C, or D. Unfortunately, the sheet was filled column by column instead of row by row, effectively transposing the intended answers. After the exam, the student comapres notes and marks each position with a comparison symbol: '+' means th ...

Mathematical Caclulation Problem Given the formula for distance between a point and a line, we can simpliyf the calculation to |x-y| * 50: #include <iostream> #include <cmath> int main() { int x, y; std::cin >> x >> y; std::cout << abs(y - x) * 50 << '\n'; return 0; } String Output Problem S ...