oj.uz

Submission #145887

# Submission time Handle Problem Language Result Execution time Memory
145887 2019-08-21T10:18:55 Z nvmdava Triangles (CEOI18_tri) C++17
75 / 100
 184 ms 11124 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;

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

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);
}

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:49:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int i = 0; i < hull.size(); i++){
                   ~~^~~~~~~~~~~~~
tri.cpp:53:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if(r == hull.size()) r = 0;
        ~~^~~~~~~~~~~~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 256 KB Output is correct
2 Correct 2 ms 256 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 256 KB Output is correct
6 Correct 3 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 380 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 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 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 3 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 256 KB Output is correct
2 Correct 2 ms 256 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 256 KB Output is correct
6 Correct 3 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 380 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 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 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 3 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 256 KB Output is correct
29 Correct 2 ms 296 KB Output is correct
30 Correct 3 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 3 ms 504 KB Output is correct
33 Correct 3 ms 376 KB Output is correct
34 Correct 3 ms 504 KB Output is correct
35 Correct 3 ms 504 KB Output is correct
36 Correct 3 ms 376 KB Output is correct
37 Correct 3 ms 376 KB Output is correct
38 Correct 3 ms 376 KB Output is correct
39 Correct 3 ms 376 KB Output is correct
40 Correct 3 ms 504 KB Output is correct
41 Correct 3 ms 504 KB Output is correct
42 Correct 3 ms 504 KB Output is correct
43 Correct 3 ms 504 KB Output is correct
44 Correct 3 ms 376 KB Output is correct
45 Correct 3 ms 504 KB Output is correct
46 Correct 3 ms 504 KB Output is correct
47 Correct 3 ms 504 KB Output is correct
48 Correct 3 ms 504 KB Output is correct
49 Correct 3 ms 376 KB Output is correct
50 Correct 3 ms 476 KB Output is correct
51 Correct 3 ms 376 KB Output is correct
52 Correct 3 ms 376 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 256 KB Output is correct
2 Correct 2 ms 256 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 256 KB Output is correct
6 Correct 3 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 380 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 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 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 3 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 256 KB Output is correct
29 Correct 2 ms 296 KB Output is correct
30 Correct 3 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 3 ms 504 KB Output is correct
33 Correct 3 ms 376 KB Output is correct
34 Correct 3 ms 504 KB Output is correct
35 Correct 3 ms 504 KB Output is correct
36 Correct 3 ms 376 KB Output is correct
37 Correct 3 ms 376 KB Output is correct
38 Correct 3 ms 376 KB Output is correct
39 Correct 3 ms 376 KB Output is correct
40 Correct 3 ms 504 KB Output is correct
41 Correct 3 ms 504 KB Output is correct
42 Correct 3 ms 504 KB Output is correct
43 Correct 3 ms 504 KB Output is correct
44 Correct 3 ms 376 KB Output is correct
45 Correct 3 ms 504 KB Output is correct
46 Correct 3 ms 504 KB Output is correct
47 Correct 3 ms 504 KB Output is correct
48 Correct 3 ms 504 KB Output is correct
49 Correct 3 ms 376 KB Output is correct
50 Correct 3 ms 476 KB Output is correct
51 Correct 3 ms 376 KB Output is correct
52 Correct 3 ms 376 KB Output is correct
53 Correct 2 ms 424 KB Output is correct
54 Correct 2 ms 376 KB Output is correct
55 Correct 3 ms 376 KB Output is correct
56 Correct 2 ms 376 KB Output is correct
57 Correct 2 ms 376 KB Output is correct
58 Correct 42 ms 4296 KB Output is correct
59 Correct 55 ms 4344 KB Output is correct
60 Correct 42 ms 4344 KB Output is correct
61 Correct 42 ms 4344 KB Output is correct
62 Correct 34 ms 3192 KB Output is correct
63 Correct 36 ms 3192 KB Output is correct
64 Correct 35 ms 3192 KB Output is correct
65 Correct 35 ms 3300 KB Output is correct
66 Correct 40 ms 4344 KB Output is correct
67 Correct 42 ms 4244 KB Output is correct
68 Correct 40 ms 4472 KB Output is correct
69 Correct 42 ms 4316 KB Output is correct
70 Correct 40 ms 4316 KB Output is correct
71 Correct 42 ms 4216 KB Output is correct
72 Correct 40 ms 4344 KB Output is correct
73 Correct 46 ms 4360 KB Output is correct
74 Correct 41 ms 4344 KB Output is correct
75 Correct 43 ms 4344 KB Output is correct
76 Correct 41 ms 4344 KB Output is correct
77 Correct 21 ms 3320 KB Output is correct
78 Correct 21 ms 3320 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 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 256 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 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 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 256 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 376 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 380 KB Output is correct

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 256 KB Output is correct
2 Correct 2 ms 256 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 256 KB Output is correct
6 Correct 3 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 380 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 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 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 3 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 256 KB Output is correct
29 Correct 2 ms 296 KB Output is correct
30 Correct 3 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 3 ms 504 KB Output is correct
33 Correct 3 ms 376 KB Output is correct
34 Correct 3 ms 504 KB Output is correct
35 Correct 3 ms 504 KB Output is correct
36 Correct 3 ms 376 KB Output is correct
37 Correct 3 ms 376 KB Output is correct
38 Correct 3 ms 376 KB Output is correct
39 Correct 3 ms 376 KB Output is correct
40 Correct 3 ms 504 KB Output is correct
41 Correct 3 ms 504 KB Output is correct
42 Correct 3 ms 504 KB Output is correct
43 Correct 3 ms 504 KB Output is correct
44 Correct 3 ms 376 KB Output is correct
45 Correct 3 ms 504 KB Output is correct
46 Correct 3 ms 504 KB Output is correct
47 Correct 3 ms 504 KB Output is correct
48 Correct 3 ms 504 KB Output is correct
49 Correct 3 ms 376 KB Output is correct
50 Correct 3 ms 476 KB Output is correct
51 Correct 3 ms 376 KB Output is correct
52 Correct 3 ms 376 KB Output is correct
53 Correct 2 ms 424 KB Output is correct
54 Correct 2 ms 376 KB Output is correct
55 Correct 3 ms 376 KB Output is correct
56 Correct 2 ms 376 KB Output is correct
57 Correct 2 ms 376 KB Output is correct
58 Correct 42 ms 4296 KB Output is correct
59 Correct 55 ms 4344 KB Output is correct
60 Correct 42 ms 4344 KB Output is correct
61 Correct 42 ms 4344 KB Output is correct
62 Correct 34 ms 3192 KB Output is correct
63 Correct 36 ms 3192 KB Output is correct
64 Correct 35 ms 3192 KB Output is correct
65 Correct 35 ms 3300 KB Output is correct
66 Correct 40 ms 4344 KB Output is correct
67 Correct 42 ms 4244 KB Output is correct
68 Correct 40 ms 4472 KB Output is correct
69 Correct 42 ms 4316 KB Output is correct
70 Correct 40 ms 4316 KB Output is correct
71 Correct 42 ms 4216 KB Output is correct
72 Correct 40 ms 4344 KB Output is correct
73 Correct 46 ms 4360 KB Output is correct
74 Correct 41 ms 4344 KB Output is correct
75 Correct 43 ms 4344 KB Output is correct
76 Correct 41 ms 4344 KB Output is correct
77 Correct 21 ms 3320 KB Output is correct
78 Correct 21 ms 3320 KB Output is correct
79 Correct 2 ms 256 KB Output is correct
80 Correct 2 ms 376 KB Output is correct
81 Correct 2 ms 376 KB Output is correct
82 Correct 2 ms 256 KB Output is correct
83 Correct 2 ms 256 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 376 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 256 KB Output is correct
92 Correct 2 ms 256 KB Output is correct
93 Correct 2 ms 376 KB Output is correct
94 Correct 2 ms 256 KB Output is correct
95 Correct 2 ms 256 KB Output is correct
96 Correct 2 ms 376 KB Output is correct
97 Correct 2 ms 256 KB Output is correct
98 Correct 2 ms 376 KB Output is correct
99 Correct 2 ms 376 KB Output is correct
100 Correct 2 ms 376 KB Output is correct
101 Correct 2 ms 376 KB Output is correct
102 Correct 2 ms 376 KB Output is correct
103 Correct 2 ms 376 KB Output is correct
104 Correct 3 ms 380 KB Output is correct
105 Correct 2 ms 376 KB Output is correct
106 Correct 2 ms 256 KB Output is correct
107 Correct 2 ms 376 KB Output is correct
108 Correct 2 ms 376 KB Output is correct
109 Correct 2 ms 252 KB Output is correct
110 Correct 135 ms 10920 KB Output is correct
111 Correct 139 ms 10996 KB Output is correct
112 Correct 141 ms 10996 KB Output is correct
113 Correct 150 ms 11120 KB Output is correct
114 Correct 114 ms 8180 KB Output is correct
115 Correct 95 ms 8180 KB Output is correct
116 Correct 134 ms 8180 KB Output is correct
117 Correct 135 ms 8180 KB Output is correct
118 Correct 139 ms 10964 KB Output is correct
119 Correct 133 ms 10996 KB Output is correct
120 Correct 134 ms 10996 KB Output is correct
121 Correct 140 ms 11124 KB Output is correct
122 Correct 133 ms 10868 KB Output is correct
123 Correct 184 ms 10624 KB Output is correct
124 Correct 171 ms 10996 KB Output is correct
125 Correct 165 ms 11016 KB Output is correct
126 Correct 134 ms 10996 KB Output is correct
127 Correct 159 ms 10996 KB Output is correct
128 Correct 165 ms 10924 KB Output is correct
129 Incorrect 63 ms 8180 KB Output isn't correct
130 Halted 0 ms 0 KB -