Web Scraping is the process of collecting structured data from web sites, Suppose you want to monitor price of a specific stock from a website and store it in your computer it would be tedious to copy the price from the website everyday, here’s where Web Scraping comes into play…

Solution in Python 3 Link:- DefaultDict (github.com) from collections import defaultdict n, m = map(int, input().split()) d = defaultdict(list) for i in range(n): d[input()].append(i+1) for j in range(m): s = input() if s in d: print(*d[s]) else: print(-1) Explanation First we will import defaultdict from collections module of Python. Then we will accept n and…

Solution in Python 3 from collections import Counter def pickingNumbers(a): countNums = Counter(a) maxnum=0 for i in range(1, 100): maxnum = max(maxnum, countNums[i]+countNums[i+1]) return maxnum Explanation We will import Counter from Python’s collections module. A Counter is a container that stores elements as dictionary keys and their counts or occurrences in a data structure as…

Solution in Python 3 def sockMerchant(n, ar): countOfSocks = [] for sock in set(ar): countOfSocks.append(ar.count(sock)) return sum([i//2 for i in countOfSocks]) Explanation First, we will declare an empty list, countOfSocks. In which we will store the count of each type of sock. countOfSocks = [] Then, we will iterate over the set of ar through…

Solution in Python 3 Link:- DOFTP (github.com) def dayOfProgrammer(year): if year < 1700 or year > 2700: return elif year==1918: return '26.09.1918'…

Solution in Python 3 🔗BDAM (github.com) def beautifulDays(i, j, k): beautifulDays = 0 for day in range(i, j+1): rev = int(str(day)[::-1]) if abs(rev-day)%k==0: beautifulDays+=1 return beautifulDays Explanation Firstly we declare a variable called beautifulDays and initialize it to 0. beautifulDays = 0 Then, we use a for loop and iterate from i i.e the starting…

Solution in Python 3 Source Code Link:- ACM ICPC Team (github.com) def acmTeam(topic): ans = [] for i in range(n): for j in range(i+1, n): know=0 for a,b in zip(topic[i], topic[j]): if a=='1' or b=='1': know+=1 ans.append(know) return [max(ans), ans.count(max(ans))] Explanation Firstly, we will declare an empty list called ans, Later on we will store…

Solution in Python 3 Link:- Knag (github.com) def kangaroo(x1, v1, x2, v2): if x1 < x2 and v1 < v2: return 'NO' else: if v1!=v2 and (x2-x1)%(v2-v1)==0: return 'YES' else: return 'NO' Explanation in Python 3 First, We check whether x1 is less than x2 and v1 is less than v2. If the condition is True then it…

Kevin and Stuart want to play the ‘The Minion Game’. Game Rules Both players are given the same string, S. Both players have to make substrings using the letters of the string S. Stuart has to make words starting with consonants. Kevin has to make words starting with vowels. The game ends when both…