Codeforces 50A Domino piling Solution in C

1. #include<stdio.h>
2. int main()
3. {
4. int x,y,p,s,a=0,b=0;
5. scanf("%d%d",&x,&y);
6. if (x>=1 && x<=y && y<=16)
7. {
8. p=x*y;
9. while (p>a)
10. {
11. a=a+2;
12. if (a<=p) b++;
13. }
14. printf("%d\n",b);
15. }
16. return 0;
17. }