题解 | #大小写转换#
大小写转换
https://www.nowcoder.com/practice/4e089ee8966a4ed4b306f64e68d45264
#include <iostream>
int main() {
char ch;
while (std::cin >> ch) {
std::cout << static_cast<char>(tolower(ch)) << std::endl;
}
return 0;
}
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