oj.uz

Submission #551896

# Submission time Handle Problem Language Result Execution time Memory
551896 2022-04-21T20:44:40 Z LucaDantas Dragon 2 (JOI17_dragon2) C++17
60 / 100
 4000 ms 1972 KB 
#pragma GCC optimize("Ofast") 
#pragma GCC optimize("no-stack-protector") 
#pragma GCC optimize("unroll-loops") 
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,fma")
#include <bits/stdc++.h>
using namespace std;

constexpr int maxn = 30010;

struct Pt {
	int x, y;
	Pt(int _x = 0, int _y = 0) : x(_x), y(_y) {}
	long long operator/(const Pt& o) const { return 1ll * x * o.y - 1ll * y * o.x; }
	Pt operator-(const Pt& o) const { return Pt(x-o.x, y-o.y); }
};

bool cw(const Pt& a, const Pt& b, const Pt& c) { return (b-a)/(c-a) < 0; }
bool ccw(const Pt& a, const Pt& b, const Pt& c) { return (b-a)/(c-a) > 0; }

vector<Pt> tribe[maxn];

Pt v[2];

int main() {
	int n, m; scanf("%d %d", &n, &m);
	for(int i = 0; i < n; i++) {
		int a, b, t; scanf("%d %d %d", &a, &b, &t);
		tribe[t].push_back(Pt(a, b));
	}
	for(int i = 0; i < 2; i++) {
		int a, b; scanf("%d %d", &a, &b);
		v[i] = Pt(a, b);
	}
	int q; scanf("%d", &q);
	while(q--) {
		int a, b; scanf("%d %d", &a, &b);
		int ans = 0;
		for(Pt p1 : tribe[a]) {
			if(ccw(p1, v[0], v[1]))
				swap(v[0], v[1]);
			for(Pt p2 : tribe[b])
				ans += cw(p1, v[0], p2) && ccw(p1, v[1], p2);
		}
		printf("%d\n", ans);
	}
}

Compilation message

dragon2.cpp: In function 'int main()':
dragon2.cpp:25:17: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |  int n, m; scanf("%d %d", &n, &m);
      |            ~~~~~^~~~~~~~~~~~~~~~~
dragon2.cpp:27:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   27 |   int a, b, t; scanf("%d %d %d", &a, &b, &t);
      |                ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
dragon2.cpp:31:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   31 |   int a, b; scanf("%d %d", &a, &b);
      |             ~~~~~^~~~~~~~~~~~~~~~~
dragon2.cpp:34:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   34 |  int q; scanf("%d", &q);
      |         ~~~~~^~~~~~~~~~
dragon2.cpp:36:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   36 |   int a, b; scanf("%d %d", &a, &b);
      |             ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 980 KB Output is correct
2 Correct 11 ms 980 KB Output is correct
3 Correct 15 ms 1060 KB Output is correct
4 Correct 39 ms 1248 KB Output is correct
5 Correct 41 ms 1372 KB Output is correct
6 Correct 3 ms 980 KB Output is correct
7 Correct 3 ms 980 KB Output is correct
8 Correct 7 ms 980 KB Output is correct
9 Correct 6 ms 980 KB Output is correct
10 Correct 6 ms 1064 KB Output is correct

Subtask #2
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 491 ms 1476 KB Output is correct
2 Correct 934 ms 1364 KB Output is correct
3 Correct 30 ms 1504 KB Output is correct
4 Correct 13 ms 1364 KB Output is correct
5 Correct 12 ms 1540 KB Output is correct
6 Correct 492 ms 1236 KB Output is correct
7 Correct 485 ms 1236 KB Output is correct
8 Correct 448 ms 1316 KB Output is correct
9 Correct 495 ms 1484 KB Output is correct
10 Correct 470 ms 1364 KB Output is correct

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 980 KB Output is correct
2 Correct 11 ms 980 KB Output is correct
3 Correct 15 ms 1060 KB Output is correct
4 Correct 39 ms 1248 KB Output is correct
5 Correct 41 ms 1372 KB Output is correct
6 Correct 3 ms 980 KB Output is correct
7 Correct 3 ms 980 KB Output is correct
8 Correct 7 ms 980 KB Output is correct
9 Correct 6 ms 980 KB Output is correct
10 Correct 6 ms 1064 KB Output is correct
11 Correct 491 ms 1476 KB Output is correct
12 Correct 934 ms 1364 KB Output is correct
13 Correct 30 ms 1504 KB Output is correct
14 Correct 13 ms 1364 KB Output is correct
15 Correct 12 ms 1540 KB Output is correct
16 Correct 492 ms 1236 KB Output is correct
17 Correct 485 ms 1236 KB Output is correct
18 Correct 448 ms 1316 KB Output is correct
19 Correct 495 ms 1484 KB Output is correct
20 Correct 470 ms 1364 KB Output is correct
21 Correct 467 ms 1236 KB Output is correct
22 Correct 968 ms 1404 KB Output is correct
23 Correct 961 ms 1624 KB Output is correct
24 Correct 294 ms 1712 KB Output is correct
25 Correct 69 ms 1692 KB Output is correct
26 Correct 44 ms 1804 KB Output is correct
27 Correct 15 ms 1920 KB Output is correct
28 Correct 16 ms 1972 KB Output is correct
29 Execution timed out 4057 ms 1784 KB Time limit exceeded
30 Halted 0 ms 0 KB -