def ArrayChallenge(a):
    p = []
    
    for i in range(0, len(a), 2):
        f = False
        for j in range(0, len(a), 2):
            if a[i] == a[j+1] and a[i+1] == a[j]:
                f = True
                break
        if not f:
            p.append(a[i])
            p.append(a[i+1])
    
    return "yes" if not p else ",".join(map(str, p))

import sys

def StringChallenge(str):
    while True:
        new_str = str.replace("ab", "c").replace("ac", "b").replace("bc", "a")
        if new_str == str:
            break
        str = new_str
    return len(str)

for _ in range(2):
    pass

for _ in range(2):
    pass

str = sys.stdin.readline().strip()
print(StringChallenge(str))

2025 batch only

def can_rob_all(houses, H, K):
    return sum((house + K - 1) // K for house in houses) <= H

def main():
    import sys
    input = sys.stdin.read
    data = list(map(int, input().split()))
    
    N, H = data[0], data[1]
    A = data[2:2+N]
    
    left, right = 1, max(A)
    
    while left < right:
        mid = (left + right) // 2
        if can_rob_all(A, H, mid):
            right = mid
        else:
            left = mid + 1
    
    print(left)

main()

Rechile World // Flipkart

#include <iostream>
#include <vector>

double calculateHouseTax(int income) {
    if (income < 50000) {
        return income * 0.1;
    } else if (income < 100000) {
        return 5000 + (income - 50000) * 0.2;
    } else {
        return 5000 + 10000 * 0.2 + (income - 100000) * 0.3;
    }
}

double calculateTax(std::vector<std::pair<int, int>> houses, std::vector<int> specialHouses) {
    double totalTax = 0;
    for (auto& house : houses) {
        int index = house.first;
        int income = house.second;
        if (index == specialHouses[0]) {
            continue;
        } else if (index == specialHouses[1]) {
            totalTax += calculateHouseTax(income) * 2;
        } else if (index == specialHouses[2]) {
            totalTax += calculateHouseTax(income) * 0.9;
        } else {
            totalTax += calculateHouseTax(income);
        }
    }
    return totalTax;
}

int main() {
    int n;
    std::cin >> n;
    std::vector<int> specialHouses(3);
    for (int i = 0; i < 3; i++) {
        std::cin >> specialHouses[i];
    }
    std::vector<std::pair<int, int>> houses(n);
    for (int i = 0; i < n; i++) {
        std::cin >> houses[i].first >> houses[i].second;
    }
    if (n) {
        std::cout << (int)calculateTax(houses, specialHouses) << std::endl;
    } else {
        std::cout << -1 << std::endl;
    }
    return 0;
}

Tax collection// Flipkart

import math

def prime(x):
    if x <= 1:
        return False
    for i in range(2, int(math.sqrt(x)) + 1):
        if x % i == 0:
            return False
    return True

def run():
    a, b = map(int, input().split())
    c = 0
    
    for n in range(a, b + 1):
        if prime(n - 1) and prime(n + 1):
            c += 1
    
    print(c)
 run()
Prime// Flipkart