Python-Advanced-Exercises , Tuples and Sets - Lab

# Python-Advanced-Exercises , Tuples and Sets - Lab
# https://judge.softuni.org/Contests/Practice/Index/1833#4

# 01. Count Same Values
# 02. Students' Grades
# 03. Record Unique Names
# 04. Parking Lot
# 05. SoftUni Party
# 06. Summation Pairs
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# 01. Count Same Values

data = (float(x) for x in input().split(' '))
nums_dict = {}
for num in data:
    if num not in nums_dict:
        nums_dict[num] = 0
    nums_dict[num] += 1

for kvp in nums_dict.items():
    print(f'{kvp[0]} - {kvp[1]} times')


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# 02. Students' Grades

n = int(input())
students = {}

for _ in range(n):
    current_student = input().split(" ")
    name = current_student[0]
    grade = float(current_student[1])
    if name not in students:
        students[name] = []
    students[name].append(grade)

for student in students.items():
    to_print = ' '.join(f"{x:.2f}" for x in student[1])
    average_grade = sum(student[1]) / len(student[1])
    print(f'{student[0]} -> {to_print} (avg: {average_grade:.2f})')


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# 03. Record Unique Names

n = int(input())

names_set_list = set()
for _ in range(n):
    name = input()
    names_set_list.add(name)

print(*names_set_list, sep='\n')


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# 04. Parking Lot

n = int(input())
parking_lot = set()
for _ in range(n):
    details = input().split(', ')
    direction = details[0]
    car_number = details[1]
    if direction == 'IN':
        parking_lot.add(car_number)
    else:
        parking_lot.remove(car_number)

if parking_lot:
    for car_num in parking_lot:
        print(car_num)
else:
    print('Parking Lot is Empty')


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# 05. SoftUni Party

n = int(input())
regular_guests = set()
vip_guests = set()

for _ in range(n):
    reg_code = input()
    if reg_code[0].isdigit():
        vip_guests.add(reg_code)
    else:
        regular_guests.add(reg_code)

guest_arrived = input()

while not guest_arrived == 'END':
    current_guest = guest_arrived
    if current_guest[0].isdigit():
        if current_guest in vip_guests:
            vip_guests.remove(current_guest)

    elif current_guest in regular_guests:
        regular_guests.remove(current_guest)

    guest_arrived = input()

print(len(vip_guests)+len(regular_guests))

for name in sorted(vip_guests):
    print(name)

for name in sorted(regular_guests):
    print(name)


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# 06. Summation Pairs

from collections import deque

numbers = deque([int(x) for x in input().split()])
target_sum = int(input())

unique_pairs = set()
iterations = 0

while numbers:
    first_num = numbers.popleft()
    for num in numbers:
        iterations += 1
        if (num + first_num) == target_sum:
            unique_pairs.add((first_num, num))
            print(f'{first_num} + {num} = {target_sum}')

print(f'Iterations done: {iterations}')
for pair in unique_pairs:
    print(pair)


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