Add BMI computation exercise

ex00/give_bmi.py

@@ -0,0 +1,41 @@
+"""BMI calculation utilities."""
+
+from typing import Iterable, Union
+
+Number = Union[int, float]
+
+
+def _compute_bmi(weight: Number, height: Number) -> float:
+    """Compute the BMI for a single height/weight pair."""
+    if height == 0:
+        raise ValueError("height cannot be zero")
+    return float(weight) / float(height) ** 2
+
+
+def give_bmi(
+    height: Iterable[Number], weight: Iterable[Number]
+) -> list[float]:
+    """Return the list of BMI values for each pair of height and weight."""
+    heights = list(height)
+    weights = list(weight)
+    if len(heights) != len(weights):
+        raise ValueError("height and weight must have the same length")
+    return [_compute_bmi(w, h) for h, w in zip(heights, weights)]
+
+
+def apply_limit(bmi: Iterable[float], limit: Number) -> list[float]:
+    """Filter BMI values strictly greater than limit."""
+    return [value for value in bmi if value > float(limit)]
+
+
+def main() -> None:
+    """Demonstration of BMI computations."""
+    heights = [1.75, 1.8, 1.6]
+    weights = [70, 80, 50]
+    bmi = give_bmi(heights, weights)
+    print("BMI values:", bmi)
+    print("Above limit:", apply_limit(bmi, 22))
+
+
+if __name__ == "__main__":
+    main()

tester/test_ex00.py

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+"""Basic tests for ex00.give_bmi."""
+
+from ex00.give_bmi import apply_limit, give_bmi
+
+
+def main() -> None:
+    """Run a simple test scenario."""
+    heights = [1.75, 1.8, 1.6]
+    weights = [70, 80, 50]
+    bmi = give_bmi(heights, weights)
+    print(bmi)
+    print(apply_limit(bmi, 22))
+
+
+if __name__ == "__main__":
+    main()