제출 #14126

#제출 시각아이디문제언어결과실행 시간메모리
14126gs13105볼질 (OJUZ10_ballparade)C++98
0 / 100
6 ms1084 KiB
#include <stdio.h>

int main()
{
	int s=0, r=0, c=0, n, a, i;
	scanf("%d", &n);
	for(i=0;i<n;i++)
	{
		scanf("%d", &a);
		if(a==1||a==3)
		{
			if(a==3)
				s<<=1;
			c++;
		}
		if(c==4||a==2)
		{
			c=0;
			if(!(s&(s+1)))
				s=(s>>1)&1;
			s++;
			s|=1;
		}
		if(s&(1<<3))
		{
			r++;
			s^=(1<<3);
		}
	}
	printf("%d", r);
	return 0;
}
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