逆序输出字符串

#include<iostream>using namespace std;#include<string.h>void swap(char *a,char *b){char temp=*a;*a=*b;*b=temp;}int main(){char s[]="I am a student";int len=strlen(s);for(int i=0;i<len/2;i++){swap((s+i),(s+len-i-1));}cout<<s<<endl;return 0;}