#include <iostream> #include <string> using namespace std; void reverse(string& str); int main(void) { string str; cin >> str; reverse(str); cout << str << endl; return 0; } void reverse(string& str) { char temp; unsigned int len = str.length(); for (unsigned int i=0; i<len/2; i++) { temp = str[i]; str[i] = str[len-1-i]; str[len-1-i] = temp; } }
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