C++編程，比薩組合，最少費用多少？謝謝朋友

int main()

{

int a,b,c,x,y;

scanf("%d %d %d %d %d",&a,&b,&c,&x,&y);

int ca, cb, cab, money=0;

for (int nab=0;nab<=(x>y?x*2:y*2);nab+=2)

{

int na=x>=nab/2?x-nab/2:0;

int nb=y>=nab/2?y-nab/2:0;

int m=na*a+nb*b+nab*c;

if (m<money||money==0)

{

ca=na;

cb=nb;

cab=nab;

money=m;

}

}

//printf("Pizza AB: %d\n", cab);

//printf("pizza A: %d\n", ca);

//printf("pizza B: %d\n", cb);

printf("%d\n", money);

return 0;

}