синтаксическая ошибка: ]

#include "stdafx.h"
#include <cstring>    
char *strcpy(char *s1, char *s2)
{
    int i = 0;
    while (s2[i] != '\0')
    {
        s1[i] = s2[i];
        i++;
    }
    s1[i] = '\0';
    return s1;
}
int main()
{
    printf("Test 1: ");
    char a[] = "Hello";
    printf(""%s" ",a);
    char b[10] = " ";
    printf(""%s" ",b);
    strcpy(b, a);
    printf(""%s" ",b);
    printf("Test 2: ");
    a[] = "Hello";
    printf(""%s" ", a);
    b[] = "Hi ";
    printf(""%s" ", b);
    strcpy(b, a);
    printf(""%s" ", b);
}

a[] = "Hello";
b[] = "Hi ";

#include <stdio.h>
char *strcpy(char *s1, char *s2)
{
    int i = 0;
    while (s2[i] != '\0')
    {
        s1[i] = s2[i];
        i++;
    }
    s1[i] = '\0';
    return s1;
}
int main()
{
    char a[] = "Hello";
    char b[10] = " ";
    printf("Test 1: ");
    printf("%s ",a);
    printf("%s ",b);
    strcpy(b, a);
    printf("%s ",b);
}

int arr[10];
int *p1 = arr;
int *p2;
p2 = p1;