The shortest code to tell if a number is even or odd [migrated]
main(i){scanf("%d",&i);puts("dispari"+3*(~i&1));}

main(i){scanf("%d",&i);puts("dispari"+3-i%2*3);}

main(i){scanf("%d",&i);puts("dispari"-~i%2*3);}

main(){puts("dispari"-~getchar()%2*3);}