Acronym Generator

Create an acronym from the first letter of every word, in uppercase. Spaces and hyphens separate words. Remove every other punctuation mark and digit without adding a separator; an apostrophe inside a word does not start another word. Ignore empty pieces.

Implement acronym_generator(phrase).

Input

phrase: The phrase to shorten.

Output

Return the uppercase initials in their original order.

सीमाएँ

0 ≤ phrase length ≤ 10,000. Input contains ASCII letters, digits, spaces, and punctuation; no tabs or line breaks. A phrase with no letters returns empty text.

उदाहरण

इनपुट:
phrase = "central-processing unit"

अपेक्षित आउटपुट:
expected = "CPU"

इनपुट:
std::string phrase = "central-processing unit";

अपेक्षित आउटपुट:
std::string expected = "CPU";

इनपुट:
string phrase = "central-processing unit";

अपेक्षित आउटपुट:
string expected = "CPU";

इनपुट:
phrase = "don't repeat yourself"

अपेक्षित आउटपुट:
expected = "DRY"

इनपुट:
std::string phrase = "don't repeat yourself";

अपेक्षित आउटपुट:
std::string expected = "DRY";

इनपुट:
string phrase = "don't repeat yourself";

अपेक्षित आउटपुट:
string expected = "DRY";

संदर्भ

यह चुनौती CodeUtility के लिए अनुकूलित की गई है। ऊपर दिए गए स्टेटमेंट और सीमाओं का पालन करें।

• Exercism: Acronym