oj.uz

Submission #954946

# Submission time Handle Problem Language Result Execution time Memory
954946 2024-03-28T23:56:34 Z hyakup Triangles (CEOI18_tri) C++17
100 / 100
 24 ms 3552 KB 
#include <bits/stdc++.h>
#include "trilib.h"
#include <random>
using namespace std;

// int get_n(){
//   cout << "N: " << endl;
//   int x; cin >> x; return x;
// }
//
// bool is_clockwise( int a, int b, int c ){
//   cout << a << " " << b << " "<< c << endl;
//   int x; cin >> x; return x;
// }
//
// void give_answer( int x ){ cout << "RESP: " << x << endl; }

void ordena( vector<int>& v, vector<int>& resp ){
  if( v.size() == 1 ) return;
  vector<int> l, r;
  l.push_back(v[0]); r.push_back(v[0]);
  for( int i = 2; i < v.size(); i++ ){
    if( is_clockwise( v[0], v[1], v[i] ) ) r.push_back(v[i]);
    else l.push_back(v[i]);
  }
  ordena( l, resp ); resp.push_back(v[1]); ordena( r, resp );
}

int main(){
  mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
  int n = get_n();
  vector<int> v, resp, marc(n + 1, -1);
  for( int i = 1; i <= n; i++ ) v.push_back(i);
  shuffle( v.begin(), v.end(), rng );
  resp.push_back(v[0]);
  ordena(v, resp);
  for( int i = 0; i < n; i++ ) resp.push_back(resp[i]);

  vector<int> hull;
  for( int cur : resp ){
    while( hull.size() >= 2 && !is_clockwise( hull[hull.size() - 2], hull.back(), cur ) ) hull.pop_back();
    hull.push_back(cur);
  }

  for( int i = 0; i < hull.size() - 1; i++ ){
    if( marc[hull[i]] == -1 ){ marc[hull[i]] = i; continue; }
    give_answer(i - marc[hull[i]]); break;
  }
}

Compilation message

tri.cpp: In function 'void ordena(std::vector<int>&, std::vector<int>&)':
tri.cpp:22:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |   for( int i = 2; i < v.size(); i++ ){
      |                   ~~^~~~~~~~~~
tri.cpp: In function 'int main()':
tri.cpp:45:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |   for( int i = 0; i < hull.size() - 1; i++ ){
      |                   ~~^~~~~~~~~~~~~~~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 352 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 352 KB Output is correct
6 Correct 0 ms 352 KB Output is correct
7 Correct 0 ms 600 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 352 KB Output is correct
12 Correct 0 ms 352 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 352 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 ms 352 KB Output is correct
22 Correct 0 ms 352 KB Output is correct
23 Correct 1 ms 352 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 352 KB Output is correct
26 Correct 0 ms 348 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 352 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 352 KB Output is correct
6 Correct 0 ms 352 KB Output is correct
7 Correct 0 ms 600 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 352 KB Output is correct
12 Correct 0 ms 352 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 352 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 ms 352 KB Output is correct
22 Correct 0 ms 352 KB Output is correct
23 Correct 1 ms 352 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 352 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 352 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 2 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 352 KB Output is correct
34 Correct 1 ms 352 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 1 ms 344 KB Output is correct
41 Correct 1 ms 548 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 1 ms 344 KB Output is correct
45 Correct 1 ms 348 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 1 ms 444 KB Output is correct
49 Correct 1 ms 348 KB Output is correct
50 Correct 1 ms 344 KB Output is correct
51 Correct 0 ms 344 KB Output is correct
52 Correct 1 ms 356 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 352 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 352 KB Output is correct
6 Correct 0 ms 352 KB Output is correct
7 Correct 0 ms 600 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 352 KB Output is correct
12 Correct 0 ms 352 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 352 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 ms 352 KB Output is correct
22 Correct 0 ms 352 KB Output is correct
23 Correct 1 ms 352 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 352 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 352 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 2 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 352 KB Output is correct
34 Correct 1 ms 352 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 1 ms 344 KB Output is correct
41 Correct 1 ms 548 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 1 ms 344 KB Output is correct
45 Correct 1 ms 348 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 1 ms 444 KB Output is correct
49 Correct 1 ms 348 KB Output is correct
50 Correct 1 ms 344 KB Output is correct
51 Correct 0 ms 344 KB Output is correct
52 Correct 1 ms 356 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 1 ms 440 KB Output is correct
55 Correct 1 ms 604 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 0 ms 344 KB Output is correct
58 Correct 8 ms 1372 KB Output is correct
59 Correct 8 ms 1524 KB Output is correct
60 Correct 8 ms 1368 KB Output is correct
61 Correct 8 ms 1376 KB Output is correct
62 Correct 8 ms 1368 KB Output is correct
63 Correct 8 ms 1380 KB Output is correct
64 Correct 7 ms 1372 KB Output is correct
65 Correct 8 ms 1612 KB Output is correct
66 Correct 7 ms 1376 KB Output is correct
67 Correct 8 ms 1384 KB Output is correct
68 Correct 8 ms 1372 KB Output is correct
69 Correct 8 ms 1372 KB Output is correct
70 Correct 8 ms 1372 KB Output is correct
71 Correct 8 ms 1372 KB Output is correct
72 Correct 8 ms 1372 KB Output is correct
73 Correct 8 ms 1372 KB Output is correct
74 Correct 8 ms 1372 KB Output is correct
75 Correct 9 ms 1372 KB Output is correct
76 Correct 8 ms 1336 KB Output is correct
77 Correct 7 ms 1592 KB Output is correct
78 Correct 7 ms 1372 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 504 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 352 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 356 KB Output is correct
15 Correct 0 ms 352 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 352 KB Output is correct
18 Correct 1 ms 356 KB Output is correct
19 Correct 0 ms 356 KB Output is correct
20 Correct 0 ms 356 KB Output is correct
21 Correct 0 ms 356 KB Output is correct
22 Correct 1 ms 360 KB Output is correct
23 Correct 0 ms 352 KB Output is correct
24 Correct 1 ms 360 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 344 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 352 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 352 KB Output is correct
6 Correct 0 ms 352 KB Output is correct
7 Correct 0 ms 600 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 352 KB Output is correct
12 Correct 0 ms 352 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 352 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 ms 352 KB Output is correct
22 Correct 0 ms 352 KB Output is correct
23 Correct 1 ms 352 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 352 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 352 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 2 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 352 KB Output is correct
34 Correct 1 ms 352 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 1 ms 344 KB Output is correct
41 Correct 1 ms 548 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 1 ms 344 KB Output is correct
45 Correct 1 ms 348 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 1 ms 444 KB Output is correct
49 Correct 1 ms 348 KB Output is correct
50 Correct 1 ms 344 KB Output is correct
51 Correct 0 ms 344 KB Output is correct
52 Correct 1 ms 356 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 1 ms 440 KB Output is correct
55 Correct 1 ms 604 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 0 ms 344 KB Output is correct
58 Correct 8 ms 1372 KB Output is correct
59 Correct 8 ms 1524 KB Output is correct
60 Correct 8 ms 1368 KB Output is correct
61 Correct 8 ms 1376 KB Output is correct
62 Correct 8 ms 1368 KB Output is correct
63 Correct 8 ms 1380 KB Output is correct
64 Correct 7 ms 1372 KB Output is correct
65 Correct 8 ms 1612 KB Output is correct
66 Correct 7 ms 1376 KB Output is correct
67 Correct 8 ms 1384 KB Output is correct
68 Correct 8 ms 1372 KB Output is correct
69 Correct 8 ms 1372 KB Output is correct
70 Correct 8 ms 1372 KB Output is correct
71 Correct 8 ms 1372 KB Output is correct
72 Correct 8 ms 1372 KB Output is correct
73 Correct 8 ms 1372 KB Output is correct
74 Correct 8 ms 1372 KB Output is correct
75 Correct 9 ms 1372 KB Output is correct
76 Correct 8 ms 1336 KB Output is correct
77 Correct 7 ms 1592 KB Output is correct
78 Correct 7 ms 1372 KB Output is correct
79 Correct 1 ms 504 KB Output is correct
80 Correct 1 ms 348 KB Output is correct
81 Correct 0 ms 348 KB Output is correct
82 Correct 1 ms 348 KB Output is correct
83 Correct 0 ms 348 KB Output is correct
84 Correct 1 ms 344 KB Output is correct
85 Correct 0 ms 352 KB Output is correct
86 Correct 1 ms 348 KB Output is correct
87 Correct 0 ms 348 KB Output is correct
88 Correct 0 ms 348 KB Output is correct
89 Correct 0 ms 348 KB Output is correct
90 Correct 0 ms 348 KB Output is correct
91 Correct 1 ms 348 KB Output is correct
92 Correct 0 ms 356 KB Output is correct
93 Correct 0 ms 352 KB Output is correct
94 Correct 0 ms 348 KB Output is correct
95 Correct 0 ms 352 KB Output is correct
96 Correct 1 ms 356 KB Output is correct
97 Correct 0 ms 356 KB Output is correct
98 Correct 0 ms 356 KB Output is correct
99 Correct 0 ms 356 KB Output is correct
100 Correct 1 ms 360 KB Output is correct
101 Correct 0 ms 352 KB Output is correct
102 Correct 1 ms 360 KB Output is correct
103 Correct 0 ms 348 KB Output is correct
104 Correct 1 ms 344 KB Output is correct
105 Correct 1 ms 348 KB Output is correct
106 Correct 1 ms 344 KB Output is correct
107 Correct 1 ms 344 KB Output is correct
108 Correct 0 ms 348 KB Output is correct
109 Correct 0 ms 348 KB Output is correct
110 Correct 24 ms 3152 KB Output is correct
111 Correct 21 ms 3040 KB Output is correct
112 Correct 22 ms 3140 KB Output is correct
113 Correct 22 ms 3332 KB Output is correct
114 Correct 22 ms 3448 KB Output is correct
115 Correct 21 ms 3184 KB Output is correct
116 Correct 21 ms 3552 KB Output is correct
117 Correct 21 ms 3536 KB Output is correct
118 Correct 22 ms 3096 KB Output is correct
119 Correct 22 ms 3552 KB Output is correct
120 Correct 22 ms 3252 KB Output is correct
121 Correct 22 ms 3308 KB Output is correct
122 Correct 22 ms 3100 KB Output is correct
123 Correct 22 ms 3152 KB Output is correct
124 Correct 22 ms 3356 KB Output is correct
125 Correct 22 ms 3024 KB Output is correct
126 Correct 22 ms 3416 KB Output is correct
127 Correct 22 ms 3116 KB Output is correct
128 Correct 22 ms 3220 KB Output is correct
129 Correct 19 ms 3080 KB Output is correct
130 Correct 19 ms 3324 KB Output is correct