| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 205921 |
2020-03-01T10:35:50 Z |
PeppaPig |
Triangles (CEOI18_tri) |
C++14 |
|
39 ms |
2480 KB |
#include "trilib.h"
#include <bits/stdc++.h>
using namespace std;
int n;
void convex_hull(vector<int> &v) {
vector<int> ans;
for(int x : v) {
while(ans.size() > 1 && !is_clockwise(ans[ans.size() - 2], ans.back(), x))
ans.pop_back();
ans.emplace_back(x);
}
v = ans;
}
int main() {
n = get_n();
vector<int> l, r;
for(int i = 3; i <= n; i++) {
if(!is_clockwise(1, 2, i)) l.emplace_back(i);
else r.emplace_back(i);
}
sort(l.begin(), l.end(), [&](int &a, int &b) { return is_clockwise(1, a, b); });
sort(r.begin(), r.end(), [&](int &a, int &b) { return is_clockwise(1, a, b); });
l.emplace_back(2), r.emplace_back(1);
convex_hull(l), convex_hull(r);
for(int x : r) l.emplace_back(x);
convex_hull(l);
deque<int> ans(l.begin(), l.end());
while(true) {
bool valid = true;
if(!is_clockwise(ans[ans.size() - 2], ans.back(), ans.front()))
ans.pop_back(), valid = false;
if(is_clockwise(ans[1], ans[0], ans.back()))
ans.pop_front(), valid = false;
if(valid) break;
}
give_answer(ans.size());
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
376 KB |
Output is correct |
| 2 |
Correct |
5 ms |
256 KB |
Output is correct |
| 3 |
Correct |
5 ms |
256 KB |
Output is correct |
| 4 |
Correct |
5 ms |
376 KB |
Output is correct |
| 5 |
Correct |
5 ms |
376 KB |
Output is correct |
| 6 |
Correct |
5 ms |
376 KB |
Output is correct |
| 7 |
Correct |
5 ms |
256 KB |
Output is correct |
| 8 |
Correct |
5 ms |
256 KB |
Output is correct |
| 9 |
Correct |
5 ms |
256 KB |
Output is correct |
| 10 |
Correct |
5 ms |
256 KB |
Output is correct |
| 11 |
Correct |
5 ms |
256 KB |
Output is correct |
| 12 |
Correct |
4 ms |
256 KB |
Output is correct |
| 13 |
Correct |
5 ms |
256 KB |
Output is correct |
| 14 |
Correct |
5 ms |
376 KB |
Output is correct |
| 15 |
Correct |
5 ms |
256 KB |
Output is correct |
| 16 |
Correct |
5 ms |
256 KB |
Output is correct |
| 17 |
Correct |
5 ms |
376 KB |
Output is correct |
| 18 |
Correct |
5 ms |
256 KB |
Output is correct |
| 19 |
Correct |
5 ms |
256 KB |
Output is correct |
| 20 |
Correct |
5 ms |
256 KB |
Output is correct |
| 21 |
Correct |
5 ms |
256 KB |
Output is correct |
| 22 |
Correct |
5 ms |
256 KB |
Output is correct |
| 23 |
Correct |
5 ms |
376 KB |
Output is correct |
| 24 |
Correct |
5 ms |
256 KB |
Output is correct |
| 25 |
Correct |
5 ms |
360 KB |
Output is correct |
| 26 |
Correct |
5 ms |
376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
376 KB |
Output is correct |
| 2 |
Correct |
5 ms |
256 KB |
Output is correct |
| 3 |
Correct |
5 ms |
256 KB |
Output is correct |
| 4 |
Correct |
5 ms |
376 KB |
Output is correct |
| 5 |
Correct |
5 ms |
376 KB |
Output is correct |
| 6 |
Correct |
5 ms |
376 KB |
Output is correct |
| 7 |
Correct |
5 ms |
256 KB |
Output is correct |
| 8 |
Correct |
5 ms |
256 KB |
Output is correct |
| 9 |
Correct |
5 ms |
256 KB |
Output is correct |
| 10 |
Correct |
5 ms |
256 KB |
Output is correct |
| 11 |
Correct |
5 ms |
256 KB |
Output is correct |
| 12 |
Correct |
4 ms |
256 KB |
Output is correct |
| 13 |
Correct |
5 ms |
256 KB |
Output is correct |
| 14 |
Correct |
5 ms |
376 KB |
Output is correct |
| 15 |
Correct |
5 ms |
256 KB |
Output is correct |
| 16 |
Correct |
5 ms |
256 KB |
Output is correct |
| 17 |
Correct |
5 ms |
376 KB |
Output is correct |
| 18 |
Correct |
5 ms |
256 KB |
Output is correct |
| 19 |
Correct |
5 ms |
256 KB |
Output is correct |
| 20 |
Correct |
5 ms |
256 KB |
Output is correct |
| 21 |
Correct |
5 ms |
256 KB |
Output is correct |
| 22 |
Correct |
5 ms |
256 KB |
Output is correct |
| 23 |
Correct |
5 ms |
376 KB |
Output is correct |
| 24 |
Correct |
5 ms |
256 KB |
Output is correct |
| 25 |
Correct |
5 ms |
360 KB |
Output is correct |
| 26 |
Correct |
5 ms |
376 KB |
Output is correct |
| 27 |
Correct |
5 ms |
256 KB |
Output is correct |
| 28 |
Correct |
5 ms |
256 KB |
Output is correct |
| 29 |
Correct |
5 ms |
256 KB |
Output is correct |
| 30 |
Correct |
5 ms |
256 KB |
Output is correct |
| 31 |
Correct |
5 ms |
256 KB |
Output is correct |
| 32 |
Correct |
5 ms |
380 KB |
Output is correct |
| 33 |
Correct |
5 ms |
376 KB |
Output is correct |
| 34 |
Correct |
5 ms |
376 KB |
Output is correct |
| 35 |
Correct |
5 ms |
376 KB |
Output is correct |
| 36 |
Correct |
5 ms |
380 KB |
Output is correct |
| 37 |
Correct |
5 ms |
376 KB |
Output is correct |
| 38 |
Correct |
5 ms |
376 KB |
Output is correct |
| 39 |
Correct |
5 ms |
376 KB |
Output is correct |
| 40 |
Correct |
5 ms |
376 KB |
Output is correct |
| 41 |
Correct |
5 ms |
368 KB |
Output is correct |
| 42 |
Correct |
5 ms |
376 KB |
Output is correct |
| 43 |
Correct |
5 ms |
376 KB |
Output is correct |
| 44 |
Correct |
5 ms |
504 KB |
Output is correct |
| 45 |
Correct |
5 ms |
376 KB |
Output is correct |
| 46 |
Correct |
6 ms |
376 KB |
Output is correct |
| 47 |
Correct |
5 ms |
376 KB |
Output is correct |
| 48 |
Correct |
5 ms |
376 KB |
Output is correct |
| 49 |
Correct |
5 ms |
376 KB |
Output is correct |
| 50 |
Correct |
5 ms |
376 KB |
Output is correct |
| 51 |
Correct |
5 ms |
376 KB |
Output is correct |
| 52 |
Correct |
5 ms |
376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
376 KB |
Output is correct |
| 2 |
Correct |
5 ms |
256 KB |
Output is correct |
| 3 |
Correct |
5 ms |
256 KB |
Output is correct |
| 4 |
Correct |
5 ms |
376 KB |
Output is correct |
| 5 |
Correct |
5 ms |
376 KB |
Output is correct |
| 6 |
Correct |
5 ms |
376 KB |
Output is correct |
| 7 |
Correct |
5 ms |
256 KB |
Output is correct |
| 8 |
Correct |
5 ms |
256 KB |
Output is correct |
| 9 |
Correct |
5 ms |
256 KB |
Output is correct |
| 10 |
Correct |
5 ms |
256 KB |
Output is correct |
| 11 |
Correct |
5 ms |
256 KB |
Output is correct |
| 12 |
Correct |
4 ms |
256 KB |
Output is correct |
| 13 |
Correct |
5 ms |
256 KB |
Output is correct |
| 14 |
Correct |
5 ms |
376 KB |
Output is correct |
| 15 |
Correct |
5 ms |
256 KB |
Output is correct |
| 16 |
Correct |
5 ms |
256 KB |
Output is correct |
| 17 |
Correct |
5 ms |
376 KB |
Output is correct |
| 18 |
Correct |
5 ms |
256 KB |
Output is correct |
| 19 |
Correct |
5 ms |
256 KB |
Output is correct |
| 20 |
Correct |
5 ms |
256 KB |
Output is correct |
| 21 |
Correct |
5 ms |
256 KB |
Output is correct |
| 22 |
Correct |
5 ms |
256 KB |
Output is correct |
| 23 |
Correct |
5 ms |
376 KB |
Output is correct |
| 24 |
Correct |
5 ms |
256 KB |
Output is correct |
| 25 |
Correct |
5 ms |
360 KB |
Output is correct |
| 26 |
Correct |
5 ms |
376 KB |
Output is correct |
| 27 |
Correct |
5 ms |
256 KB |
Output is correct |
| 28 |
Correct |
5 ms |
256 KB |
Output is correct |
| 29 |
Correct |
5 ms |
256 KB |
Output is correct |
| 30 |
Correct |
5 ms |
256 KB |
Output is correct |
| 31 |
Correct |
5 ms |
256 KB |
Output is correct |
| 32 |
Correct |
5 ms |
380 KB |
Output is correct |
| 33 |
Correct |
5 ms |
376 KB |
Output is correct |
| 34 |
Correct |
5 ms |
376 KB |
Output is correct |
| 35 |
Correct |
5 ms |
376 KB |
Output is correct |
| 36 |
Correct |
5 ms |
380 KB |
Output is correct |
| 37 |
Correct |
5 ms |
376 KB |
Output is correct |
| 38 |
Correct |
5 ms |
376 KB |
Output is correct |
| 39 |
Correct |
5 ms |
376 KB |
Output is correct |
| 40 |
Correct |
5 ms |
376 KB |
Output is correct |
| 41 |
Correct |
5 ms |
368 KB |
Output is correct |
| 42 |
Correct |
5 ms |
376 KB |
Output is correct |
| 43 |
Correct |
5 ms |
376 KB |
Output is correct |
| 44 |
Correct |
5 ms |
504 KB |
Output is correct |
| 45 |
Correct |
5 ms |
376 KB |
Output is correct |
| 46 |
Correct |
6 ms |
376 KB |
Output is correct |
| 47 |
Correct |
5 ms |
376 KB |
Output is correct |
| 48 |
Correct |
5 ms |
376 KB |
Output is correct |
| 49 |
Correct |
5 ms |
376 KB |
Output is correct |
| 50 |
Correct |
5 ms |
376 KB |
Output is correct |
| 51 |
Correct |
5 ms |
376 KB |
Output is correct |
| 52 |
Correct |
5 ms |
376 KB |
Output is correct |
| 53 |
Correct |
5 ms |
256 KB |
Output is correct |
| 54 |
Correct |
5 ms |
376 KB |
Output is correct |
| 55 |
Correct |
5 ms |
256 KB |
Output is correct |
| 56 |
Correct |
5 ms |
256 KB |
Output is correct |
| 57 |
Correct |
5 ms |
256 KB |
Output is correct |
| 58 |
Correct |
14 ms |
1016 KB |
Output is correct |
| 59 |
Correct |
14 ms |
1016 KB |
Output is correct |
| 60 |
Correct |
14 ms |
1016 KB |
Output is correct |
| 61 |
Correct |
14 ms |
1016 KB |
Output is correct |
| 62 |
Correct |
14 ms |
1144 KB |
Output is correct |
| 63 |
Correct |
14 ms |
1016 KB |
Output is correct |
| 64 |
Correct |
14 ms |
1144 KB |
Output is correct |
| 65 |
Correct |
14 ms |
1144 KB |
Output is correct |
| 66 |
Correct |
13 ms |
888 KB |
Output is correct |
| 67 |
Correct |
13 ms |
1016 KB |
Output is correct |
| 68 |
Correct |
13 ms |
1016 KB |
Output is correct |
| 69 |
Correct |
13 ms |
1016 KB |
Output is correct |
| 70 |
Correct |
13 ms |
1016 KB |
Output is correct |
| 71 |
Correct |
13 ms |
1016 KB |
Output is correct |
| 72 |
Correct |
13 ms |
888 KB |
Output is correct |
| 73 |
Correct |
17 ms |
1016 KB |
Output is correct |
| 74 |
Correct |
13 ms |
1016 KB |
Output is correct |
| 75 |
Correct |
13 ms |
1016 KB |
Output is correct |
| 76 |
Correct |
13 ms |
1016 KB |
Output is correct |
| 77 |
Correct |
14 ms |
888 KB |
Output is correct |
| 78 |
Correct |
11 ms |
1016 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
256 KB |
Output is correct |
| 2 |
Correct |
5 ms |
256 KB |
Output is correct |
| 3 |
Correct |
5 ms |
256 KB |
Output is correct |
| 4 |
Correct |
5 ms |
256 KB |
Output is correct |
| 5 |
Correct |
5 ms |
256 KB |
Output is correct |
| 6 |
Correct |
5 ms |
376 KB |
Output is correct |
| 7 |
Correct |
5 ms |
256 KB |
Output is correct |
| 8 |
Correct |
4 ms |
256 KB |
Output is correct |
| 9 |
Correct |
5 ms |
376 KB |
Output is correct |
| 10 |
Correct |
5 ms |
256 KB |
Output is correct |
| 11 |
Correct |
5 ms |
376 KB |
Output is correct |
| 12 |
Correct |
5 ms |
256 KB |
Output is correct |
| 13 |
Correct |
5 ms |
256 KB |
Output is correct |
| 14 |
Correct |
4 ms |
256 KB |
Output is correct |
| 15 |
Correct |
5 ms |
256 KB |
Output is correct |
| 16 |
Correct |
5 ms |
256 KB |
Output is correct |
| 17 |
Correct |
5 ms |
256 KB |
Output is correct |
| 18 |
Correct |
5 ms |
256 KB |
Output is correct |
| 19 |
Correct |
5 ms |
256 KB |
Output is correct |
| 20 |
Correct |
5 ms |
256 KB |
Output is correct |
| 21 |
Correct |
5 ms |
256 KB |
Output is correct |
| 22 |
Correct |
6 ms |
256 KB |
Output is correct |
| 23 |
Correct |
5 ms |
256 KB |
Output is correct |
| 24 |
Correct |
5 ms |
376 KB |
Output is correct |
| 25 |
Correct |
5 ms |
256 KB |
Output is correct |
| 26 |
Correct |
5 ms |
376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
376 KB |
Output is correct |
| 2 |
Correct |
5 ms |
256 KB |
Output is correct |
| 3 |
Correct |
5 ms |
256 KB |
Output is correct |
| 4 |
Correct |
5 ms |
376 KB |
Output is correct |
| 5 |
Correct |
5 ms |
376 KB |
Output is correct |
| 6 |
Correct |
5 ms |
376 KB |
Output is correct |
| 7 |
Correct |
5 ms |
256 KB |
Output is correct |
| 8 |
Correct |
5 ms |
256 KB |
Output is correct |
| 9 |
Correct |
5 ms |
256 KB |
Output is correct |
| 10 |
Correct |
5 ms |
256 KB |
Output is correct |
| 11 |
Correct |
5 ms |
256 KB |
Output is correct |
| 12 |
Correct |
4 ms |
256 KB |
Output is correct |
| 13 |
Correct |
5 ms |
256 KB |
Output is correct |
| 14 |
Correct |
5 ms |
376 KB |
Output is correct |
| 15 |
Correct |
5 ms |
256 KB |
Output is correct |
| 16 |
Correct |
5 ms |
256 KB |
Output is correct |
| 17 |
Correct |
5 ms |
376 KB |
Output is correct |
| 18 |
Correct |
5 ms |
256 KB |
Output is correct |
| 19 |
Correct |
5 ms |
256 KB |
Output is correct |
| 20 |
Correct |
5 ms |
256 KB |
Output is correct |
| 21 |
Correct |
5 ms |
256 KB |
Output is correct |
| 22 |
Correct |
5 ms |
256 KB |
Output is correct |
| 23 |
Correct |
5 ms |
376 KB |
Output is correct |
| 24 |
Correct |
5 ms |
256 KB |
Output is correct |
| 25 |
Correct |
5 ms |
360 KB |
Output is correct |
| 26 |
Correct |
5 ms |
376 KB |
Output is correct |
| 27 |
Correct |
5 ms |
256 KB |
Output is correct |
| 28 |
Correct |
5 ms |
256 KB |
Output is correct |
| 29 |
Correct |
5 ms |
256 KB |
Output is correct |
| 30 |
Correct |
5 ms |
256 KB |
Output is correct |
| 31 |
Correct |
5 ms |
256 KB |
Output is correct |
| 32 |
Correct |
5 ms |
380 KB |
Output is correct |
| 33 |
Correct |
5 ms |
376 KB |
Output is correct |
| 34 |
Correct |
5 ms |
376 KB |
Output is correct |
| 35 |
Correct |
5 ms |
376 KB |
Output is correct |
| 36 |
Correct |
5 ms |
380 KB |
Output is correct |
| 37 |
Correct |
5 ms |
376 KB |
Output is correct |
| 38 |
Correct |
5 ms |
376 KB |
Output is correct |
| 39 |
Correct |
5 ms |
376 KB |
Output is correct |
| 40 |
Correct |
5 ms |
376 KB |
Output is correct |
| 41 |
Correct |
5 ms |
368 KB |
Output is correct |
| 42 |
Correct |
5 ms |
376 KB |
Output is correct |
| 43 |
Correct |
5 ms |
376 KB |
Output is correct |
| 44 |
Correct |
5 ms |
504 KB |
Output is correct |
| 45 |
Correct |
5 ms |
376 KB |
Output is correct |
| 46 |
Correct |
6 ms |
376 KB |
Output is correct |
| 47 |
Correct |
5 ms |
376 KB |
Output is correct |
| 48 |
Correct |
5 ms |
376 KB |
Output is correct |
| 49 |
Correct |
5 ms |
376 KB |
Output is correct |
| 50 |
Correct |
5 ms |
376 KB |
Output is correct |
| 51 |
Correct |
5 ms |
376 KB |
Output is correct |
| 52 |
Correct |
5 ms |
376 KB |
Output is correct |
| 53 |
Correct |
5 ms |
256 KB |
Output is correct |
| 54 |
Correct |
5 ms |
376 KB |
Output is correct |
| 55 |
Correct |
5 ms |
256 KB |
Output is correct |
| 56 |
Correct |
5 ms |
256 KB |
Output is correct |
| 57 |
Correct |
5 ms |
256 KB |
Output is correct |
| 58 |
Correct |
14 ms |
1016 KB |
Output is correct |
| 59 |
Correct |
14 ms |
1016 KB |
Output is correct |
| 60 |
Correct |
14 ms |
1016 KB |
Output is correct |
| 61 |
Correct |
14 ms |
1016 KB |
Output is correct |
| 62 |
Correct |
14 ms |
1144 KB |
Output is correct |
| 63 |
Correct |
14 ms |
1016 KB |
Output is correct |
| 64 |
Correct |
14 ms |
1144 KB |
Output is correct |
| 65 |
Correct |
14 ms |
1144 KB |
Output is correct |
| 66 |
Correct |
13 ms |
888 KB |
Output is correct |
| 67 |
Correct |
13 ms |
1016 KB |
Output is correct |
| 68 |
Correct |
13 ms |
1016 KB |
Output is correct |
| 69 |
Correct |
13 ms |
1016 KB |
Output is correct |
| 70 |
Correct |
13 ms |
1016 KB |
Output is correct |
| 71 |
Correct |
13 ms |
1016 KB |
Output is correct |
| 72 |
Correct |
13 ms |
888 KB |
Output is correct |
| 73 |
Correct |
17 ms |
1016 KB |
Output is correct |
| 74 |
Correct |
13 ms |
1016 KB |
Output is correct |
| 75 |
Correct |
13 ms |
1016 KB |
Output is correct |
| 76 |
Correct |
13 ms |
1016 KB |
Output is correct |
| 77 |
Correct |
14 ms |
888 KB |
Output is correct |
| 78 |
Correct |
11 ms |
1016 KB |
Output is correct |
| 79 |
Correct |
5 ms |
256 KB |
Output is correct |
| 80 |
Correct |
5 ms |
256 KB |
Output is correct |
| 81 |
Correct |
5 ms |
256 KB |
Output is correct |
| 82 |
Correct |
5 ms |
256 KB |
Output is correct |
| 83 |
Correct |
5 ms |
256 KB |
Output is correct |
| 84 |
Correct |
5 ms |
376 KB |
Output is correct |
| 85 |
Correct |
5 ms |
256 KB |
Output is correct |
| 86 |
Correct |
4 ms |
256 KB |
Output is correct |
| 87 |
Correct |
5 ms |
376 KB |
Output is correct |
| 88 |
Correct |
5 ms |
256 KB |
Output is correct |
| 89 |
Correct |
5 ms |
376 KB |
Output is correct |
| 90 |
Correct |
5 ms |
256 KB |
Output is correct |
| 91 |
Correct |
5 ms |
256 KB |
Output is correct |
| 92 |
Correct |
4 ms |
256 KB |
Output is correct |
| 93 |
Correct |
5 ms |
256 KB |
Output is correct |
| 94 |
Correct |
5 ms |
256 KB |
Output is correct |
| 95 |
Correct |
5 ms |
256 KB |
Output is correct |
| 96 |
Correct |
5 ms |
256 KB |
Output is correct |
| 97 |
Correct |
5 ms |
256 KB |
Output is correct |
| 98 |
Correct |
5 ms |
256 KB |
Output is correct |
| 99 |
Correct |
5 ms |
256 KB |
Output is correct |
| 100 |
Correct |
6 ms |
256 KB |
Output is correct |
| 101 |
Correct |
5 ms |
256 KB |
Output is correct |
| 102 |
Correct |
5 ms |
376 KB |
Output is correct |
| 103 |
Correct |
5 ms |
256 KB |
Output is correct |
| 104 |
Correct |
5 ms |
376 KB |
Output is correct |
| 105 |
Correct |
5 ms |
376 KB |
Output is correct |
| 106 |
Correct |
5 ms |
376 KB |
Output is correct |
| 107 |
Correct |
5 ms |
256 KB |
Output is correct |
| 108 |
Correct |
5 ms |
376 KB |
Output is correct |
| 109 |
Correct |
5 ms |
256 KB |
Output is correct |
| 110 |
Correct |
31 ms |
2040 KB |
Output is correct |
| 111 |
Correct |
36 ms |
2040 KB |
Output is correct |
| 112 |
Correct |
31 ms |
2040 KB |
Output is correct |
| 113 |
Correct |
30 ms |
2040 KB |
Output is correct |
| 114 |
Correct |
38 ms |
2312 KB |
Output is correct |
| 115 |
Correct |
29 ms |
2448 KB |
Output is correct |
| 116 |
Correct |
30 ms |
2480 KB |
Output is correct |
| 117 |
Correct |
29 ms |
2452 KB |
Output is correct |
| 118 |
Correct |
30 ms |
2144 KB |
Output is correct |
| 119 |
Correct |
28 ms |
2040 KB |
Output is correct |
| 120 |
Correct |
36 ms |
2088 KB |
Output is correct |
| 121 |
Correct |
30 ms |
2040 KB |
Output is correct |
| 122 |
Correct |
31 ms |
2040 KB |
Output is correct |
| 123 |
Correct |
30 ms |
2184 KB |
Output is correct |
| 124 |
Correct |
30 ms |
2168 KB |
Output is correct |
| 125 |
Correct |
29 ms |
2024 KB |
Output is correct |
| 126 |
Correct |
38 ms |
2168 KB |
Output is correct |
| 127 |
Correct |
29 ms |
2040 KB |
Output is correct |
| 128 |
Correct |
39 ms |
2040 KB |
Output is correct |
| 129 |
Correct |
37 ms |
2260 KB |
Output is correct |
| 130 |
Correct |
24 ms |
2388 KB |
Output is correct |
