unsigned long main(void)
{
unsigned long t = 285;
unsigned long p = 165;
unsigned long h = 143;
t++;
unsigned long tri = getTriangular(t);
unsigned long pen = getPentagonal(t);
unsigned long hex = getHexagonal(t);
while (tri!=pen || tri!=hex)
{
if (pen < hex && pen < tri)
{
p++;
pen = getPentagonal(p);
}else if (hex < pen && hex < tri)
{
h++;
hex = getHexagonal(h);
}else
{
t++;
tri = getTriangular(t);
}
}
printf("t: %d, h: %d, p: %d, val: %d\n", t,h,p,tri);
return 0;
}
int64_t Problem45::solve()
{
int start = HEXAGONAL_START;
while(++start)
{
if(isPentagonal(getHexagonal(start)))
break;
}
return getHexagonal(start);
}