Problème
Afficher la traductionReturn n multiplied by itself. The square of a negative number is positive.
Implement square_number(n).
Input
n: Any integer in the allowed range.
Output
Return n × n.
Contraintes
−3,000,000,000 ≤ n ≤ 3,000,000,000, so the square fits a signed 64-bit integer.
Exemples
Exemple 1
Entrée :
n = 12
Sortie attendue :
expected = 144Entrée :
long long n = 12;
Sortie attendue :
long long expected = 144;Entrée :
long n = 12;
Sortie attendue :
long expected = 144;Explication
12 × 12 = 144.
Exemple 2
Entrée :
n = -7
Sortie attendue :
expected = 49Entrée :
long long n = -7;
Sortie attendue :
long long expected = 49;Entrée :
long n = -7;
Sortie attendue :
long expected = 49;Explication
(−7) × (−7) = 49.