Submission #4905

#	Time	Username	Problem	Language	Result	Execution time	Memory
4905		gs13068	공주님의 정원 (KOI11_flower)	C++98	18 / 18	52 ms	2648 KiB

flower

#include<cstdio>
#include<algorithm>

struct flower
{
	int sm,sd;
	int em,ed;
} f[100000];

inline bool operator <(const flower &a,const flower &b)
{
	if(a.sm!=b.sm)return a.sm<b.sm;
	if(a.sd!=b.sd)return a.sd<b.sd;
	if(a.em!=b.em)return a.em<b.em;
	return a.ed<b.ed;
}

int main()
{
	int m=3,d=1;
	int nm=3,nd=1;
	int i,n,res=1;
	scanf("%d",&n);
	for(i=0;i<n;i++)scanf("%d%d%d%d",&f[i].sm,&f[i].sd,&f[i].em,&f[i].ed);
	std::sort(f,f+n);
	for(i=0;i<n&&nm<12;i++)
	{
		if(f[i].sm>m||(f[i].sm==m&&f[i].sd>d))
		{
			m=nm;
			d=nd;
			res++;
		}
		if(f[i].em>nm||(f[i].em==nm&&f[i].ed>nd))
		{
			nm=f[i].em;
			nd=f[i].ed;
		}
	}
	if(nm<12)printf("0");
	else printf("%d",res);
}

• Subtask 1: 2 / 2
• Subtask 2: 7 / 7
• Subtask 3: 9 / 9