Problème
Split a duration into hours, minutes, and seconds. Write units as h, m, and s, in that order, with one space between units. Omit any zero-valued unit, except that zero seconds is written as 0s.
Implement format_duration(seconds).
Input
seconds: The total duration in seconds.
Output
Return the formatted duration, for example 2h 2m 5s.
Contraintes
0 ≤ seconds ≤ 1,000,000,000. Hours may exceed 23; this is a duration, not a time of day.
Exemples
Entrée :
seconds = 7325
Sortie attendue :
expected = "2h 2m 5s"Entrée :
long long seconds = 7325;
Sortie attendue :
std::string expected = "2h 2m 5s";Entrée :
long seconds = 7325;
Sortie attendue :
string expected = "2h 2m 5s";Explication
7325 = 2 × 3600 + 2 × 60 + 5.
Entrée :
seconds = 120
Sortie attendue :
expected = "2m"Entrée :
long long seconds = 120;
Sortie attendue :
std::string expected = "2m";Entrée :
long seconds = 120;
Sortie attendue :
string expected = "2m";Explication
120 seconds is exactly 2 minutes. Omit the zero hours and seconds.
Comment l'aborder
Essayez d'abord seul, puis ouvrez les indices un par un.
Indice 1
Break the total seconds into larger units first, then format only the nonzero parts.
Indice 2
Keep hours, minutes, and seconds in that order, with spaces between included units.
Indice 3
If every larger unit is zero, still make sure the output is exactly 0s when the duration is zero.
Complexité attendue
O(1) time, O(1) extra space
Références
Ce défi a été adapté pour CodeUtility. Suivez l'énoncé et les contraintes ci-dessus.