Failed to read the array after saving it in C language

-sharpinclude<stdio.h>
-sharpinclude<stdlib.h>
-sharpinclude<time.h>

int main()
{
    int a[10][10];
    srand(time(NULL));
    int i,j;
    for(i=0;i<10;iPP)
    {
        for(j=0;j<10;jPP)
        {
            a[i][j]=rand()%10;
            printf("%d\t",a[i][j]);
        }
        printf("\n");
    }
    printf("\n");
    FILE *fp=fopen("./a_matrix","wb+");
    if(fp)
    {
        int size=fwrite(a,sizeof(a),1,fp);
        if(size==1)
        {
            int b[10][10];
            fread(b,sizeof(b),1,fp);
            if(feof(fp))
            {
                for(i=0;i<10;iPP)
                {
                    for(j=0;j<10;jPP)
                    {
                        printf("%d\t",b[i][j]);
                    }
                    printf("\n");
                }
            }
        }
        fclose(fp);
    }
    return 0;
}

the result of a compilation run using gcc is
8 3 5 9 4 9 0 5 27
4 2 2 3 4 9 4 6 3 7
6 7 1 1 4 4 7 0 3 5
9 40 6 3 5 7 5 22
4 8 4 6 7 8 6 3
5 3 0 6 4 6 2 4 7 6
1 8 0 2 7 5 9 4 3 3
6 9 2 3 8 6 7 7 4 0
0 25 2 8 9 9 3 5 6
9 7 4 1 9 8 0 8 3

2 32546 510347552 510347552 32766 30 510347536 32766
00-769542344 32546 00 10-769542384 32546
00 1700966438 0-769541480 32546 510347704 32766 510347760 32766
-769542384 32546 00-771763729 32546 00 510347760 32766
00 00-769542384 32546-774158457
00 510347536 32766 510347552 32766-769541480 32546 32546
0 510347568 32766-1000 510943848 32766
-769542384 32546 000 1970169159 0
9 0-771799456 32546 510347720 32766 15775231 01 0
-449672227 22095-771741280 32546 00-449672304 22095-449673168 22095

I don"t understand why there is such a result

Mar.12,2022

-sharpinclude<stdio.h> -sharpinclude<stdlib.h> -sharpinclude<time.h> void write_matrix(FILE *fp) { int a[10][10]; srand(time(NULL)); int i, j; for(i=0;i<10;iPP) { for(j=0;j<10;jPP) { a[i][j]=rand()%10; fwrite(&a[i][j], sizeof(int), 1, fp); printf("%d\t", a[i][j]); } printf("\n"); } } void read_matrix(FILE *fp, int(*b)[10]) { int i, j; for(i=0;i<10;iPP) { for(j=0;j<10;jPP) { fread(&b[i][j], sizeof(int), 1, fp); } } } int main() { FILE *fp = fopen("./a_matrix", "wb"); if(fp) { write_matrix(fp); fclose(fp); } printf("\n"); fp = fopen("./a_matrix", "rb"); if(fp) { int b[10][10]; int i, j; read_matrix(fp, b); for(i=0;i<10;iPP) { for(j=0;j<10;jPP) { printf("%d\t", b[i][j]); } printf("\n"); } fclose(fp); } return 0; }