题解 | #反转字符串#
反转字符串
http://www.nowcoder.com/practice/c3a6afee325e472386a1c4eb1ef987f3
class Solution {
public:
/**
* 反转字符串
* @param str string字符串
* @return string字符串
*/
string solve(string str) {
for(int i = 0; i < str.length()/2; i++)
{
char temp = str.at(i);
str.at(i) = str.at( str.length()-1-i );
str.at( str.length()-1-i ) = temp;
}
return str;
}
};
//将字符串的字符首尾交换