While Loop - Python

01. Read Text

line = input()

while line != "Stop":
    print(line)
    line = input()

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02. Password

username = input()
reg_pass = input()

current_pass = input()
while current_pass != reg_pass:
    current_pass = input()

print("Welcome " + username + "!")

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03. Sum Numbers

init_num = int(input())

sum = 0
while sum < init_num:
    current_num = int(input())
    sum = sum + current_num

print(sum)

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04. Sequence 2k+1

n = int(input())

current_num = 1
while current_num <= n:
    print(current_num)
    current_num = current_num * 2 + 1

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05. Account Balance

input_line = input()

balance = 0
while input_line != "NoMoreMoney":
    amount = float(input_line)
    if amount < 0:
        print("Invalid operation!")
        break

    balance = balance + amount
    print(f"Increase: {amount:.2f}")

    input_line = input()

print(f"Total: {balance:.2f}")

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06. Max Number

import sys

line = input()

max_num = -sys.maxsize
while line != "Stop":
    current_num = int(line)

    if current_num > max_num:
        max_num = current_num

    line = input()

print(max_num)

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07. Min Number

import sys

line = input()

min_num = sys.maxsize
while line != "Stop":
    current_num = int(line)

    if current_num < min_num:
        min_num = current_num

    line = input()

print(min_num)

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08. Graduation

student_name = input()

year = 1
sum = 0
fail_count = 0
while year <= 12:
    if fail_count > 1:
        break

    grade = float(input())

    if grade < 4:
        fail_count += 1
        continue

    sum = sum + grade

    year += 1

if fail_count > 1:
    print(f"{student_name} has been excluded at {year} grade")
else:
    avg_grade = sum / 12
    print(f"{student_name} graduated. Average grade: {avg_grade:.2f}")