[reverse string]

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
void reversestring(char s1[], char s2[])
{
    int l = strlen(s1);
    int i;
    for (i = 0; i < l; ++i)
    {
        s2[i] = s1[l-i-1];
    }
    s2[i] = '\0';
}
int main(int argc, char const *argv[])
{
    char s1[] = "tran trung vi";
    char s2[100];
    //clrscr();
    //printf("Nhap vao chuoi ki tu\n");
    //scanf("%s",s1);

    reversestring(s1,s2);
    puts(s2);
    system("pause");
    return 0;
}