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unordered _ map abbreviations = { { LOL , laughing out loud } , { IDK , I don't know }
unorderedmap abbreviations
LOL "laughing out loud"
IDK "I don't know"
BFF "best friends forever"
IMHOin my humble opinion"
TMI "too much information"
;
string input;
cout "Enter an abbreviation: ;
getlinecin input;
Convert input to uppercase for caseinsensitive matching
transforminputbegin input.end input.begin ::toupper;
Check if abbreviation exists in the map
if abbreviationscountinput
cout abbreviationsinput endl;
else
cout "Unknown" endl;
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