题解 | #左旋转字符串#
左旋转字符串
https://www.nowcoder.com/practice/12d959b108cb42b1ab72cef4d36af5ec
class Solution {
public:
string LeftRotateString(string str, int n) {
if(str.size()==0)
{
return str;
}
string s1;
float m=0.0;
m=n%str.size();
if(m==0.0)
{
return str;
}
s1.append(str,0,m);
string s2;
s2.append(str,m,str.size()-m);
s2.append(s1,0,s1.size());
return s2;
}
};
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