questao 2 prova pratica

#include <stdio.h>
#include <stdlib.h>
#define tam 20

int main ()
{
    int veta[]={1,2,3,4,5,6,7,8,9,10};
    int vetb[]={11,12,13,14,15,16,17,18,19,20};
    int vetc[tam];
    int a=0,b=0,c=2;


    for(int i=0; i < tam; i++){

        if(c%2==0){
            vetc[i]=veta[a];
            a++;
        }
        if(c%2!=0){
            vetc[i]=vetb[b];
            b++;
        }
    c++;
    }

    for(int i=0; i < tam; i++){
    printf("%d  ",vetc[i]);

    }
    return 0;
}