oj.uz

답안 #127870

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
127870 2019-07-10T07:38:33 Z 임유진(#3111) Dragon 2 (JOI17_dragon2) C++14
15 / 100
 197 ms 27248 KB 
#include <stdio.h>
#include <vector>
#include <algorithm>

using namespace std;

#define MAXN 3005
#define MAXQ 100005

typedef long long lint;

int DX[MAXN], DY[MAXN], TR[MAXN], F[MAXQ], G[MAXQ];
int ans[MAXN][MAXN];

lint ccw(int x1, int y1, int x2, int y2, int x3, int y3) {
	return (lint) x1 * y2 + (lint) x2 * y3 + (lint) x3 * y1 - (lint) x2 * y1 - (lint) x3 * y2 - (lint) x1 * y3;
}

int dir(int x1, int y1, int x2, int y2, int x3, int y3) {
	return ccw(x1, y1, x2, y2, x3, y3) < 0 ? -1 : 1;
}

int main() {
	int N, M, Q;
	int HX1, HY1, HX2, HY2;

	scanf("%d%d", &N, &M);
	for(int i = 0; i < N; i++) scanf("%d%d%d", DX + i, DY + i, TR + i);
	scanf("%d%d%d%d", &HX1, &HY1, &HX2, &HY2);
	scanf("%d", &Q);
	for(int i = 0; i < Q; i++) scanf("%d%d", F + i, G + i);

	for(int i = 0; i < N; i++) for(int j = 0; j < N; j++)
		if(i != j && dir(DX[i], DY[i], HX1, HY1, HX2, HY2) == dir(DX[i], DY[i], HX1, HY1, DX[j], DY[j]) && dir(DX[i], DY[i], HX2, HY2, HX1, HY1) == dir(DX[i], DY[i], HX2, HY2, DX[j], DY[j])) ans[TR[i]][TR[j]]++;

	for(int i = 0; i < Q; i++) printf("%d\n", ans[F[i]][G[i]]);
	return 0;
}

Compilation message

dragon2.cpp: In function 'int main()':
dragon2.cpp:27:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &N, &M);
  ~~~~~^~~~~~~~~~~~~~~~
dragon2.cpp:28:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i = 0; i < N; i++) scanf("%d%d%d", DX + i, DY + i, TR + i);
                             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
dragon2.cpp:29:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d%d", &HX1, &HY1, &HX2, &HY2);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
dragon2.cpp:30:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &Q);
  ~~~~~^~~~~~~~~~
dragon2.cpp:31:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i = 0; i < Q; i++) scanf("%d%d", F + i, G + i);
                             ~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 139 ms 376 KB Output is correct
2 Correct 130 ms 376 KB Output is correct
3 Correct 135 ms 888 KB Output is correct
4 Correct 163 ms 9464 KB Output is correct
5 Correct 197 ms 27248 KB Output is correct
6 Correct 80 ms 2296 KB Output is correct
7 Correct 78 ms 2296 KB Output is correct
8 Correct 127 ms 380 KB Output is correct
9 Correct 75 ms 376 KB Output is correct
10 Correct 76 ms 376 KB Output is correct

Subtask #2
0 / 45.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 4 ms 632 KB Time limit exceeded (wall clock)
2 Halted 0 ms 0 KB -

Subtask #3
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 139 ms 376 KB Output is correct
2 Correct 130 ms 376 KB Output is correct
3 Correct 135 ms 888 KB Output is correct
4 Correct 163 ms 9464 KB Output is correct
5 Correct 197 ms 27248 KB Output is correct
6 Correct 80 ms 2296 KB Output is correct
7 Correct 78 ms 2296 KB Output is correct
8 Correct 127 ms 380 KB Output is correct
9 Correct 75 ms 376 KB Output is correct
10 Correct 76 ms 376 KB Output is correct
11 Execution timed out 4 ms 632 KB Time limit exceeded (wall clock)
12 Halted 0 ms 0 KB -