समस्या
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.
सीमाएँ
0 ≤ seconds ≤ 1,000,000,000. Hours may exceed 23; this is a duration, not a time of day.
उदाहरण
इनपुट:
seconds = 7325
अपेक्षित आउटपुट:
expected = "2h 2m 5s"इनपुट:
long long seconds = 7325;
अपेक्षित आउटपुट:
std::string expected = "2h 2m 5s";इनपुट:
long seconds = 7325;
अपेक्षित आउटपुट:
string expected = "2h 2m 5s";व्याख्या
7325 = 2 × 3600 + 2 × 60 + 5.
इनपुट:
seconds = 120
अपेक्षित आउटपुट:
expected = "2m"इनपुट:
long long seconds = 120;
अपेक्षित आउटपुट:
std::string expected = "2m";इनपुट:
long seconds = 120;
अपेक्षित आउटपुट:
string expected = "2m";व्याख्या
120 seconds is exactly 2 minutes. Omit the zero hours and seconds.
कैसे हल करें
पहले खुद कोशिश करें, फिर एक-एक करके संकेत खोलें।
संकेत 1
Break the total seconds into larger units first, then format only the nonzero parts.
संकेत 2
Keep hours, minutes, and seconds in that order, with spaces between included units.
संकेत 3
If every larger unit is zero, still make sure the output is exactly 0s when the duration is zero.
अपेक्षित जटिलता
O(1) time, O(1) extra space
संदर्भ
यह चुनौती CodeUtility के लिए अनुकूलित की गई है। ऊपर दिए गए स्टेटमेंट और सीमाओं का पालन करें।