// https://leetcode.cn/problems/zuo-xuan-zhuan-zi-fu-chuan-lcof/?envType=study-plan-v2&envId=coding-interviews
#include
#include
using namespace std;
class Solution {
public:
string reverseLeftWords(string s, int n) {
std::reverse(s.begin(), s.end());
std::reverse(s.begin(), s.begin() + n);
std::reverse(s.begin() + n, s.end());
return s;
}
};