Given a string, convert the whole string to uppercase or lowercase using STL in C++.
For uppercase conversion Input : s = "String" Output : s = "STRING" For lowercase conversion Input : s = "String" Output : s = "string"
Functions used :
transform : Performs a transformation on given array/string.
toupper(int c) : Returns upper case version of character c. If c is already in uppercase, return c itself.
tolower(int c) : Returns lower case version of character c. If c is already in lowercase, return c itself.
JATIN GOYAL jatin goyal
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