Submission #145893

# Submission time Handle Problem Language Result Execution time Memory
145893 2019-08-21T10:25:28 Z nvmdava Triangles (CEOI18_tri) C++17
75 / 100
424 ms 71156 KB
#include <bits/stdc++.h>
#include "trilib.h"
 
#define ff first
#define ss second
#define ll long long
using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
 
int n, root, t;

map<ll, bool> lol;

bool get(ll a, ll b, ll c){
	ll en = a * 40001 * 40001 + b * 40001 + c;
	if(lol.find(en) != lol.end())
		return lol[en];
	return lol[en] = is_clockwise(a, b, c);
}

class Compare{
	public:
		bool operator()(const int& lhs, const int& rhs){
			return get(root, lhs, rhs);
		}
};


set<int, Compare> le, ri;
vector<int> hull, hull2;
int main() {
 
	n = get_n();
 
 	root = 1;
 	t = 2;
 	for(int i = 3; i <= n; i++){
 		if(get(t, root, i))
 		 	ri.insert(i);
 		else 
 			le.insert(i);
 	}
 	for(int x : le)
 		hull.push_back(x);
 	hull.push_back(root);
 	for(int x : ri)
 		hull.push_back(x);
 	hull.push_back(t);
 	while(true){
 		for(int i = 0; i < hull.size(); i++){
 			int l = i - 1;
 			int r = i + 1;
 			if(l == -1) l = hull.size() - 1;
 			if(r == hull.size()) r = 0;
 			l = hull[l];
 			r = hull[r];

 			if(get(l, hull[i], r))
 				hull2.push_back(hull[i]);
 		}
 		swap(hull2, hull);
 		if(hull.size() == hull2.size()) break;
 		hull2.clear();
 	}
 	give_answer(hull.size());
}

Compilation message

tri.cpp: In function 'int main()':
tri.cpp:50:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int i = 0; i < hull.size(); i++){
                   ~~^~~~~~~~~~~~~
tri.cpp:54:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if(r == hull.size()) r = 0;
        ~~^~~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 348 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 348 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 380 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 3 ms 376 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 348 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 348 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 380 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 3 ms 376 KB Output is correct
27 Correct 2 ms 256 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 256 KB Output is correct
31 Correct 2 ms 256 KB Output is correct
32 Correct 4 ms 632 KB Output is correct
33 Correct 4 ms 732 KB Output is correct
34 Correct 4 ms 636 KB Output is correct
35 Correct 4 ms 632 KB Output is correct
36 Correct 4 ms 632 KB Output is correct
37 Correct 4 ms 636 KB Output is correct
38 Correct 4 ms 760 KB Output is correct
39 Correct 4 ms 632 KB Output is correct
40 Correct 4 ms 504 KB Output is correct
41 Correct 4 ms 632 KB Output is correct
42 Correct 4 ms 632 KB Output is correct
43 Correct 4 ms 760 KB Output is correct
44 Correct 4 ms 632 KB Output is correct
45 Correct 5 ms 632 KB Output is correct
46 Correct 4 ms 632 KB Output is correct
47 Correct 4 ms 760 KB Output is correct
48 Correct 4 ms 760 KB Output is correct
49 Correct 4 ms 632 KB Output is correct
50 Correct 4 ms 632 KB Output is correct
51 Correct 4 ms 888 KB Output is correct
52 Correct 5 ms 888 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 348 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 348 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 380 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 3 ms 376 KB Output is correct
27 Correct 2 ms 256 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 256 KB Output is correct
31 Correct 2 ms 256 KB Output is correct
32 Correct 4 ms 632 KB Output is correct
33 Correct 4 ms 732 KB Output is correct
34 Correct 4 ms 636 KB Output is correct
35 Correct 4 ms 632 KB Output is correct
36 Correct 4 ms 632 KB Output is correct
37 Correct 4 ms 636 KB Output is correct
38 Correct 4 ms 760 KB Output is correct
39 Correct 4 ms 632 KB Output is correct
40 Correct 4 ms 504 KB Output is correct
41 Correct 4 ms 632 KB Output is correct
42 Correct 4 ms 632 KB Output is correct
43 Correct 4 ms 760 KB Output is correct
44 Correct 4 ms 632 KB Output is correct
45 Correct 5 ms 632 KB Output is correct
46 Correct 4 ms 632 KB Output is correct
47 Correct 4 ms 760 KB Output is correct
48 Correct 4 ms 760 KB Output is correct
49 Correct 4 ms 632 KB Output is correct
50 Correct 4 ms 632 KB Output is correct
51 Correct 4 ms 888 KB Output is correct
52 Correct 5 ms 888 KB Output is correct
53 Correct 2 ms 376 KB Output is correct
54 Correct 2 ms 256 KB Output is correct
55 Correct 2 ms 376 KB Output is correct
56 Correct 2 ms 256 KB Output is correct
57 Correct 2 ms 376 KB Output is correct
58 Correct 127 ms 16428 KB Output is correct
59 Correct 144 ms 16468 KB Output is correct
60 Correct 122 ms 16376 KB Output is correct
61 Correct 122 ms 16744 KB Output is correct
62 Correct 110 ms 15196 KB Output is correct
63 Correct 110 ms 15864 KB Output is correct
64 Correct 115 ms 15480 KB Output is correct
65 Correct 119 ms 16016 KB Output is correct
66 Correct 112 ms 16248 KB Output is correct
67 Correct 118 ms 16632 KB Output is correct
68 Correct 121 ms 16628 KB Output is correct
69 Correct 115 ms 16280 KB Output is correct
70 Correct 119 ms 16816 KB Output is correct
71 Correct 111 ms 16120 KB Output is correct
72 Correct 111 ms 16220 KB Output is correct
73 Correct 115 ms 16252 KB Output is correct
74 Correct 121 ms 17272 KB Output is correct
75 Correct 119 ms 16720 KB Output is correct
76 Correct 114 ms 16504 KB Output is correct
77 Correct 144 ms 24184 KB Output is correct
78 Correct 134 ms 25080 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 252 KB Output is correct
20 Correct 2 ms 256 KB Output is correct
21 Correct 2 ms 256 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 256 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 348 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 348 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 380 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 3 ms 376 KB Output is correct
27 Correct 2 ms 256 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 256 KB Output is correct
31 Correct 2 ms 256 KB Output is correct
32 Correct 4 ms 632 KB Output is correct
33 Correct 4 ms 732 KB Output is correct
34 Correct 4 ms 636 KB Output is correct
35 Correct 4 ms 632 KB Output is correct
36 Correct 4 ms 632 KB Output is correct
37 Correct 4 ms 636 KB Output is correct
38 Correct 4 ms 760 KB Output is correct
39 Correct 4 ms 632 KB Output is correct
40 Correct 4 ms 504 KB Output is correct
41 Correct 4 ms 632 KB Output is correct
42 Correct 4 ms 632 KB Output is correct
43 Correct 4 ms 760 KB Output is correct
44 Correct 4 ms 632 KB Output is correct
45 Correct 5 ms 632 KB Output is correct
46 Correct 4 ms 632 KB Output is correct
47 Correct 4 ms 760 KB Output is correct
48 Correct 4 ms 760 KB Output is correct
49 Correct 4 ms 632 KB Output is correct
50 Correct 4 ms 632 KB Output is correct
51 Correct 4 ms 888 KB Output is correct
52 Correct 5 ms 888 KB Output is correct
53 Correct 2 ms 376 KB Output is correct
54 Correct 2 ms 256 KB Output is correct
55 Correct 2 ms 376 KB Output is correct
56 Correct 2 ms 256 KB Output is correct
57 Correct 2 ms 376 KB Output is correct
58 Correct 127 ms 16428 KB Output is correct
59 Correct 144 ms 16468 KB Output is correct
60 Correct 122 ms 16376 KB Output is correct
61 Correct 122 ms 16744 KB Output is correct
62 Correct 110 ms 15196 KB Output is correct
63 Correct 110 ms 15864 KB Output is correct
64 Correct 115 ms 15480 KB Output is correct
65 Correct 119 ms 16016 KB Output is correct
66 Correct 112 ms 16248 KB Output is correct
67 Correct 118 ms 16632 KB Output is correct
68 Correct 121 ms 16628 KB Output is correct
69 Correct 115 ms 16280 KB Output is correct
70 Correct 119 ms 16816 KB Output is correct
71 Correct 111 ms 16120 KB Output is correct
72 Correct 111 ms 16220 KB Output is correct
73 Correct 115 ms 16252 KB Output is correct
74 Correct 121 ms 17272 KB Output is correct
75 Correct 119 ms 16720 KB Output is correct
76 Correct 114 ms 16504 KB Output is correct
77 Correct 144 ms 24184 KB Output is correct
78 Correct 134 ms 25080 KB Output is correct
79 Correct 2 ms 256 KB Output is correct
80 Correct 2 ms 256 KB Output is correct
81 Correct 2 ms 256 KB Output is correct
82 Correct 2 ms 256 KB Output is correct
83 Correct 2 ms 376 KB Output is correct
84 Correct 2 ms 376 KB Output is correct
85 Correct 2 ms 256 KB Output is correct
86 Correct 2 ms 256 KB Output is correct
87 Correct 2 ms 376 KB Output is correct
88 Correct 2 ms 376 KB Output is correct
89 Correct 2 ms 256 KB Output is correct
90 Correct 2 ms 256 KB Output is correct
91 Correct 2 ms 376 KB Output is correct
92 Correct 2 ms 376 KB Output is correct
93 Correct 2 ms 256 KB Output is correct
94 Correct 2 ms 256 KB Output is correct
95 Correct 2 ms 376 KB Output is correct
96 Correct 2 ms 376 KB Output is correct
97 Correct 2 ms 252 KB Output is correct
98 Correct 2 ms 256 KB Output is correct
99 Correct 2 ms 256 KB Output is correct
100 Correct 2 ms 376 KB Output is correct
101 Correct 2 ms 256 KB Output is correct
102 Correct 2 ms 376 KB Output is correct
103 Correct 2 ms 256 KB Output is correct
104 Correct 2 ms 376 KB Output is correct
105 Correct 2 ms 376 KB Output is correct
106 Correct 2 ms 376 KB Output is correct
107 Correct 2 ms 256 KB Output is correct
108 Correct 2 ms 256 KB Output is correct
109 Correct 2 ms 256 KB Output is correct
110 Correct 396 ms 46840 KB Output is correct
111 Correct 380 ms 47096 KB Output is correct
112 Correct 374 ms 47136 KB Output is correct
113 Correct 382 ms 46640 KB Output is correct
114 Correct 390 ms 44976 KB Output is correct
115 Correct 342 ms 43860 KB Output is correct
116 Correct 345 ms 44144 KB Output is correct
117 Correct 352 ms 43636 KB Output is correct
118 Correct 381 ms 46580 KB Output is correct
119 Correct 398 ms 47128 KB Output is correct
120 Correct 366 ms 46452 KB Output is correct
121 Correct 373 ms 46708 KB Output is correct
122 Correct 406 ms 47004 KB Output is correct
123 Correct 398 ms 48288 KB Output is correct
124 Correct 385 ms 47988 KB Output is correct
125 Correct 370 ms 46708 KB Output is correct
126 Correct 403 ms 48112 KB Output is correct
127 Correct 374 ms 46580 KB Output is correct
128 Correct 393 ms 47004 KB Output is correct
129 Incorrect 424 ms 71156 KB Output isn't correct
130 Halted 0 ms 0 KB -