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python/TangDou/KaoShi/大小写转换.cpp

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2025-08-30 18:35:01 +08:00
#include <bits/stdc++.h>
using namespace std;
int main() {
string s;
cin >> s;
for (int i = s.size() - 1; i >= 0; i--)
if (s[i] >= 'A' && s[i] <= 'Z')
cout << s[i] + 32;
else
cout << s[i];
return 0;
}