Minutes Between Events
Programming Basics · Python
TASK
Problem
Given two times `h1 m1 h2 m2`. The second event may be next day. Print non-negative minutes from first to second.
EXAMPLE
Example
23 50 0 10
20
LIMITS
Constraints
0≤h≤23; 0≤m≤59
LEARN
Theory for this problem
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`input()` reads data entered by the user. The result of `input()` is initially a string. `split()` separates one input line into individual values using spaces. `map()` applies the specified conversion to each input value. The `+` operator adds numbers. The `-` operator subtracts one number from another. The `*` operator multiplies numbers. Comparison operators `==`, `!=`, `<`, `>`, `<=`, `>=` compare values and produce `True` or `False`. `if` checks a condition and runs its block when the condition is true. `print()` displays the program result. Print only what the problem statement requires.
**Connection to this task.** An `if` statement chooses a program branch from a Boolean condition. Comparisons produce `True` or `False`, and `elif` lets you test several mutually exclusive cases in order. The expression `b - a` shows how this idea is applied to the task data.
NEED HELP?
Hints
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['Convert to minutes. If the second time is smaller, add 1440.']
ANSWER
Solution
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h1, m1, h2, m2 = map(int, input().split())
a = h1 * 60 + m1
b = h2 * 60 + m2
if b < a:
b += 1440
print(b - a)