oj.uz

답안 #5992

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
5992 2014-06-11T16:04:44 Z model_code 별자리 2 (JOI14_constellation2) C++
100 / 100
 4232 ms 1264 KB 
#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <algorithm>

using namespace std;

int N,notchecked;
int px[3002];
int py[3002];
int cl[3002];
typedef struct {
	int dx;
	int dy;
	int id;
}events;
events event[9999];

int cmp(const events &a,const events &b) {
	int kadx=a.dx;
	int kady=a.dy;
	int kbdx=b.dx;
	int kbdy=b.dy;
	while(1) {
		if(kadx>=0&&kady>=0) {
			if(kbdx>=0&&kbdy>=0) {
				long long cmpa=kady;
				cmpa*=kbdx;
				long long cmpb=kadx;
				cmpb*=kbdy;
				if(cmpa<cmpb) return 0;
				if(cmpa>cmpb) return 1;
				return 0;
			} else {
				return 0;
			}
		} else {
			if(kbdx>=0&&kbdy>=0) return 1;
		}
		int kc=kady;
		kady=-kadx;
		kadx=kc;
		kc=kbdy;
		kbdy=-kbdx;
		kbdx=kc;
	}
}
int cols[6];
int sides[3002];
int checked[3002];
long long sol=0;
void add_tris(int cola,int colb) {
	long long kadd=1;
	if(cola!=0) kadd*=cols[0];
	if(cola!=1) kadd*=cols[1];
	if(cola!=2) kadd*=cols[2];
	long long ladd=1;
	if(colb!=0) ladd*=cols[3];
	if(colb!=1) ladd*=cols[4];
	if(colb!=2) ladd*=cols[5];
	sol+=(kadd*ladd);
}
int main() {
	scanf("%d",&N);
	for(int i=0;i<N;i++) scanf("%d%d%d",&px[i],&py[i],&cl[i]);
	for(int i=0;i<N;i++) {
		int ttl=0;
		for(int j=0;j<6;j++) cols[j]=0;
		for(int j=0;j<N;j++) {
			sides[j]=0;
			checked[j]=0;
			if(i!=j) {
				event[ttl].dx=px[j]-px[i];
				event[ttl].dy=py[j]-py[i];
				event[ttl].id=j+1;
				ttl++;
				event[ttl].dx=px[i]-px[j];
				event[ttl].dy=py[i]-py[j];
				event[ttl].id=-j-1;
				ttl++;
			}
		}
		//qsort(event,ttl,sizeof(events),cmp);
      sort(event, event+ttl, cmp);
		notchecked=N-1;
		for(int ll=0;ll<2;ll++) {
			for(int j=0;j<ttl;j++) {
				int nw=event[j].id;
				if(nw>0) {
					nw--;
					if(sides[nw]==2) cols[cl[nw]+3]--;
					if(sides[nw]==0) notchecked--;
					sides[nw]=1;
					cols[cl[nw]]++;
					if(notchecked==0) {
						if(checked[nw]==0) {
							checked[nw]=1;
							cols[cl[nw]]--;
							add_tris(cl[i],cl[nw]);
							cols[cl[nw]]++;
						}
					}
				} else {
					nw++;
					nw=-nw;
					if(sides[nw]==1) cols[cl[nw]]--;
					if(sides[nw]==0) notchecked--;
					sides[nw]=2;
					cols[cl[nw]+3]++;
				}
			}
		}
	}
	printf("%lld\n",sol/2);
	return 0;
}

Subtask #1
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 1264 KB Output is correct
2 Correct 0 ms 1264 KB Output is correct
3 Correct 0 ms 1264 KB Output is correct
4 Correct 0 ms 1264 KB Output is correct
5 Correct 0 ms 1264 KB Output is correct
6 Correct 0 ms 1264 KB Output is correct
7 Correct 0 ms 1264 KB Output is correct
8 Correct 0 ms 1264 KB Output is correct
9 Correct 0 ms 1264 KB Output is correct
10 Correct 0 ms 1264 KB Output is correct
11 Correct 0 ms 1264 KB Output is correct
12 Correct 0 ms 1264 KB Output is correct

Subtask #2
40.0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 1264 KB Output is correct
2 Correct 0 ms 1264 KB Output is correct
3 Correct 0 ms 1264 KB Output is correct
4 Correct 8 ms 1264 KB Output is correct
5 Correct 12 ms 1264 KB Output is correct
6 Correct 32 ms 1264 KB Output is correct
7 Correct 32 ms 1264 KB Output is correct
8 Correct 32 ms 1264 KB Output is correct
9 Correct 32 ms 1264 KB Output is correct
10 Correct 20 ms 1264 KB Output is correct
11 Correct 32 ms 1264 KB Output is correct
12 Correct 32 ms 1264 KB Output is correct

Subtask #3
45.0 / 45.0

# 결과 실행 시간 메모리 Grader output
1 Correct 260 ms 1264 KB Output is correct
2 Correct 328 ms 1264 KB Output is correct
3 Correct 416 ms 1264 KB Output is correct
4 Correct 420 ms 1264 KB Output is correct
5 Correct 976 ms 1264 KB Output is correct
6 Correct 1776 ms 1264 KB Output is correct
7 Correct 2848 ms 1264 KB Output is correct
8 Correct 4124 ms 1264 KB Output is correct
9 Correct 4212 ms 1264 KB Output is correct
10 Correct 4232 ms 1264 KB Output is correct
11 Correct 4192 ms 1264 KB Output is correct
12 Correct 4156 ms 1264 KB Output is correct
13 Correct 4148 ms 1264 KB Output is correct
14 Correct 4176 ms 1264 KB Output is correct
15 Correct 3888 ms 1264 KB Output is correct
16 Correct 4196 ms 1264 KB Output is correct