ex1109.c random number using unsigned seed

/* ex1109.c */
#include <stdio.h>
#include <stdlib.h>

int main()
{
    unsigned seed;
    int r,a,b;

    printf("Input a random number seed: ");
    scanf("%u",&seed);
    srand(seed);
    for(a=1;a<=20;a++)
    {
        for(b=1;b<=5;b++)
        {
            r=rand();
            printf("%d\t",r);
        }
        putchar('\n');
    }
    return(0);
}

output:

 

Input a random number seed: -13
32764   31830   18380   17294   5837
26285   671     4804    25175   12233
7776    27528   8249    14555   26951
19902   20759   16133   11965   3771
3646    27247   23070   252     25227
21399   14014   17432   10889   29416
28970   20724   16345   11919   15792
5686    29655   31370   18465   14588
7546    16129   20693   19917   15996
30938   6896    7632    955     18568
4068    19515   9440    25379   15415
28687   26430   6590    2439    30211
18429   27381   22987   24253   4471
21189   26587   11592   24546   19617
4403    6595    22832   15297   27891
23638   7219    11710   21547   9323
11013   11100   16214   4122    21671
2982    7460    14308   25064   32065
1661    8869    2440    14842   29634
13764   28574   6305    22358   30125

Process returned 0 (0x0)   execution time : 3.405 s
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