Solve Python Coding Challenge -Handson Kickoffs

Welcome to Kickoffs - Coding - Oct 06 2023 - Python - Trading Platform

Problem Description:-

first input line represnts number of events "N"
subsequent line of i < N represent individuals inputs of events.
<Event> <Stock_name> <Quantity>

Events	Portfolio	Net Profit
But Stock1	789
Change Stock1	-666
Buy Stock5	662
Change Stock5	-130
Buy Stock15	414
Change Stock15	-565
Buy Stock35	732
Sell Stock15	345
Buy Stock17	784
Query		-845444

 

def getNetProfit(events):      
    profit =0   
    d= {}
    temp = []
    for i in events:
        print(i)
        
        if "BUY" in i:
            stock = i.split()[1]
            quantity =  i.split()[2]
            d[stock] = quantity
            # return profit 
        
        if "CHANGE" in i:
            stock = i.split()[1]
            quantity =  i.split()[2]
            st_value =d[stock]
            temp.append(int(st_value)*int(quantity))
            
            
        if "QUERY" in i:
            profit = sum(temp)
                    
        if "SELL" in i:
            try:
                stock = i.split()[1]
                quantity =  i.split()[2]
                st_value =d[stock]
                new_value = int(st_value) - int(quantity)
                d[stock] = new_value
            except KeyError:
                raise KeyError("Stock Not Found") 
        
    return profit    
    
    
events = [
    'BUY stock57 789',
    'CHANGE stock57 -666',
    'BUY stock196 662',
    'CHANGE stock196 -130',
    'BUY stock860 414',
    'CHANGE stock860 -565',
    'BUY stock61 732',
    'SELL stock860 69',
    'BUY stock269 794',
    'QUERY']

Net_profit = getNetProfit(events)
print(Net_profit)

Q2. User-Friendly Password System

Problem Description:-

 
#!/bin/python3

import math
import os
import random
import re
import sys



#
# Complete the 'authEvents' function below.
#
# The function is expected to return an INTEGER_ARRAY.
# The function accepts 2D_STRING_ARRAY events as parameter.
#

# def authEvents(events):
#     # Write your code here
    
    
    
def authEvents(events):
    print(events)
    import string
    
    h = list(string.ascii_letters)+ [str(d) for d in range(10)]  # + [""]
    # Write your code here
    ans = []
    for i in range(len(events)):
        def f(x):
            z = ord("%s" %x)
            return z
            
        def hash_val(lst, ln):
            count =1
            w=[]
            for ij in lst:
                t= f(ij) * (131** (ln-count))
                w.append(t)
                count= count+1
            return sum(w) % (10**9+7)
        
        if events[i][0] == 'setPassword':
            lst= list(events[i][1])
            ln = len(lst)
            
            
            res =[]
            res.append(hash_val(lst, ln))
            
            for k in h:
                lst_add= list(events[i][1])
                lst_add.append(k)
                ln_add = len(lst_add)
                res.append(hash_val(lst_add, ln_add))
            
            print(res)
        
        if events[i][0] == "authorize":
            if int(events[i][1]) in res:
                ans.append(1)
            else:
                ans.append(0)
           
    return ans

if __name__ == '__main__':
    fptr = open(os.environ['OUTPUT_PATH'], 'w')

    events_rows = int(input().strip())
    events_columns = int(input().strip())

    events = []

    for _ in range(events_rows):
        events.append(input().rstrip().split())

    result = authEvents(events)

    fptr.write('\n'.join(map(str, result)))
    fptr.write('\n')

    fptr.close()