Zmeika 2

#include <stdio.h>
#include <string.h>
#include <math.h>
#define SIZE 8//может быть число до 10
//populate array in quite interesting way, works both with if/else if/else and trenary operator

void pr_arr(int s,int a[SIZE][SIZE]);
void snake(int s,int a[SIZE][SIZE]);
int main()
{
    int arr[SIZE][SIZE];

    printf("SNAKE is:\n");
    snake(SIZE,arr);
    pr_arr(SIZE,arr);

    return 0;
}

void pr_arr(int s,int a[SIZE][SIZE])
{
    int i,j;
    for(i=0;i<s;i++)
    {
        for(j=0;j<s;j++)
            printf("%d\t",a[i][j]);
        printf("\n");
    }
}

void snake(int s,int a[SIZE][SIZE])
{

    int i,j,step_down,step_right,start = 1;
    step_down = step_right = 0;

    for(i=0;i<s;i++)
    {

        for(j=0;j<s;j++)
        {
           a[i][j]=(j==0)? start:  //assigns value to element
               (j<s-i)?a[i][j-1]+step_right++:
                   a[i][j-1]-1+step_right--;

            if(j==0)step_right= i+2;
            /*if(j==0)//replace with ternary operator!
                a[i][j]= start, step_right =i+2 ;//step_right initialized once for each i, when j==0
            else if(j<s-i)
                a[i][j] = a[i][j-1]+ step_right++;
            else
                a[i][j] = a[i][j-1]-1+step_right--;*/
        }
        step_down++;
        start += step_down;
    }

}