55. 右旋字符串 C

#include<stdio.h>
void reverse(char* s,int head,int tail){
    while(head<=tail){
        char temp=s[head];
        s[head]=s[tail];
        s[tail]=temp;
        head++;
        tail--;
    }
}
char s[10000]={0};
int main(){
    int k=0;
    scanf("%d",&k);
    scanf("%s",s);
    int ns=0;
    while(s[ns]!=0) ns++;
    reverse(s,0,ns-1);
    reverse(s,0,k-1);
    reverse(s,k,ns-1);
    printf("%s",s);
    return 0;
}

结果：