oj.uz

답안 #780919

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
780919 2023-07-12T14:39:31 Z 1bin Rectangles (IOI19_rect) C++14
100 / 100
 1014 ms 187084 KB 
#include <bits/stdc++.h>
#include "rect.h"
using namespace std;

#define all(v) v.begin(), v.end()
typedef long long ll;
const int NMAX = 3005;
ll n, m, ans;
stack<int> st[NMAX];
pair<int, int> p[NMAX][NMAX];

ll count_rectangles(vector<vector<int>> a) {
    n = a.size(); m = a[0].size();
    for(int i = 0; i < m; i++){
        st[i].emplace(0);
        for(int j = 0; j < m; j++) p[i][j] = {-2, -2};
    }

    for(int i = 0; i + 1 < n; i++){
        stack<pair<int, vector<int>>> s;

        for(int j = 0; j < m; j++){
            vector<int> cur;
            int init = 0;
            auto merge = [&](vector<int> & v){
                if(!init) init = 1, cur = v;
                else{
                    vector<int> tmp;
                    int j = 0;
                    for(int i = 0; i < cur.size(); i++){
                        while(j < v.size() && v[j] < cur[i]) j++;
                        if(j < v.size() && v[j] == cur[i]) tmp.emplace_back(cur[i]);
                    }
                    swap(cur, tmp);
                }
            };

            while(s.size() && a[i][s.top().first] <= a[i][j]){
                auto[x, v] = s.top(); s.pop();
                merge(v);
                if(s.size() && a[i][x] < a[i][j]){
                    int l = s.top().first;
                    if(p[l + 1][j - 1].second != i - 1) p[l + 1][j - 1].first = i;
                    p[l + 1][j - 1].second = i;
                    int up = p[l + 1][j - 1].first;
                    ans += cur.end() - lower_bound(all(cur), up);
                }
            }
            vector<int> v;
            while(st[j].size() && a[st[j].top()][j] <= a[i + 1][j]){
                int y = st[j].top(); st[j].pop();
                if(st[j].size() && a[y][j] < a[i + 1][j]) v.emplace_back(st[j].top() + 1);
            }
            st[j].emplace(i + 1);
            reverse(all(v));
            merge(v);
            s.emplace(j, cur);
        }
    } 
	return ans;
}

/*
int main(void){
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    int n, m;
    cin >> n >> m;
    vector<vector<int>> v(n, vector<int>(m));
    for(int i = 0; i < n; i++) for(int j = 0; j < m; j++) cin >> v[i][j];
    cout << count_rectangles(v);
    return 0;
} 
*/

Compilation message

rect.cpp: In lambda function:
rect.cpp:30:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |                     for(int i = 0; i < cur.size(); i++){
      |                                    ~~^~~~~~~~~~~~
rect.cpp:31:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |                         while(j < v.size() && v[j] < cur[i]) j++;
      |                               ~~^~~~~~~~~~
rect.cpp:32:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |                         if(j < v.size() && v[j] == cur[i]) tmp.emplace_back(cur[i]);
      |                            ~~^~~~~~~~~~
rect.cpp: In function 'll count_rectangles(std::vector<std::vector<int> >)':
rect.cpp:39:21: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   39 |                 auto[x, v] = s.top(); s.pop();
      |                     ^

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2260 KB Output is correct
2 Correct 2 ms 2388 KB Output is correct
3 Correct 1 ms 2388 KB Output is correct
4 Correct 1 ms 2388 KB Output is correct
5 Correct 1 ms 2388 KB Output is correct
6 Correct 1 ms 2388 KB Output is correct
7 Correct 2 ms 2388 KB Output is correct
8 Correct 2 ms 2388 KB Output is correct
9 Correct 2 ms 2388 KB Output is correct
10 Correct 1 ms 2456 KB Output is correct
11 Correct 1 ms 2388 KB Output is correct
12 Correct 1 ms 2388 KB Output is correct
13 Correct 1 ms 2260 KB Output is correct
14 Correct 1 ms 2260 KB Output is correct
15 Correct 1 ms 2260 KB Output is correct
16 Correct 1 ms 2260 KB Output is correct
17 Correct 2 ms 2260 KB Output is correct
18 Correct 1 ms 2328 KB Output is correct
19 Correct 1 ms 2452 KB Output is correct
20 Correct 1 ms 2332 KB Output is correct
21 Correct 1 ms 2260 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2260 KB Output is correct
2 Correct 2 ms 2388 KB Output is correct
3 Correct 1 ms 2388 KB Output is correct
4 Correct 1 ms 2388 KB Output is correct
5 Correct 1 ms 2388 KB Output is correct
6 Correct 1 ms 2388 KB Output is correct
7 Correct 2 ms 2388 KB Output is correct
8 Correct 2 ms 2388 KB Output is correct
9 Correct 2 ms 2388 KB Output is correct
10 Correct 1 ms 2456 KB Output is correct
11 Correct 1 ms 2388 KB Output is correct
12 Correct 1 ms 2388 KB Output is correct
13 Correct 1 ms 2260 KB Output is correct
14 Correct 1 ms 2260 KB Output is correct
15 Correct 1 ms 2260 KB Output is correct
16 Correct 1 ms 2260 KB Output is correct
17 Correct 2 ms 2260 KB Output is correct
18 Correct 1 ms 2328 KB Output is correct
19 Correct 1 ms 2452 KB Output is correct
20 Correct 1 ms 2332 KB Output is correct
21 Correct 1 ms 2260 KB Output is correct
22 Correct 2 ms 2772 KB Output is correct
23 Correct 2 ms 2772 KB Output is correct
24 Correct 2 ms 2772 KB Output is correct
25 Correct 2 ms 2644 KB Output is correct
26 Correct 2 ms 2724 KB Output is correct
27 Correct 2 ms 2900 KB Output is correct
28 Correct 2 ms 2772 KB Output is correct
29 Correct 2 ms 2516 KB Output is correct

Subtask #3
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2260 KB Output is correct
2 Correct 2 ms 2388 KB Output is correct
3 Correct 1 ms 2388 KB Output is correct
4 Correct 1 ms 2388 KB Output is correct
5 Correct 1 ms 2388 KB Output is correct
6 Correct 1 ms 2388 KB Output is correct
7 Correct 2 ms 2388 KB Output is correct
8 Correct 2 ms 2388 KB Output is correct
9 Correct 2 ms 2388 KB Output is correct
10 Correct 1 ms 2456 KB Output is correct
11 Correct 1 ms 2388 KB Output is correct
12 Correct 1 ms 2388 KB Output is correct
13 Correct 1 ms 2260 KB Output is correct
14 Correct 1 ms 2260 KB Output is correct
15 Correct 1 ms 2260 KB Output is correct
16 Correct 1 ms 2260 KB Output is correct
17 Correct 2 ms 2772 KB Output is correct
18 Correct 2 ms 2772 KB Output is correct
19 Correct 2 ms 2772 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 2 ms 2724 KB Output is correct
22 Correct 2 ms 2900 KB Output is correct
23 Correct 2 ms 2772 KB Output is correct
24 Correct 2 ms 2516 KB Output is correct
25 Correct 2 ms 2260 KB Output is correct
26 Correct 1 ms 2328 KB Output is correct
27 Correct 1 ms 2452 KB Output is correct
28 Correct 1 ms 2332 KB Output is correct
29 Correct 1 ms 2260 KB Output is correct
30 Correct 4 ms 4128 KB Output is correct
31 Correct 4 ms 4052 KB Output is correct
32 Correct 5 ms 4180 KB Output is correct
33 Correct 5 ms 3796 KB Output is correct
34 Correct 7 ms 3908 KB Output is correct
35 Correct 7 ms 4120 KB Output is correct
36 Correct 7 ms 4004 KB Output is correct
37 Correct 7 ms 3984 KB Output is correct

Subtask #4
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2260 KB Output is correct
2 Correct 2 ms 2388 KB Output is correct
3 Correct 1 ms 2388 KB Output is correct
4 Correct 1 ms 2388 KB Output is correct
5 Correct 1 ms 2388 KB Output is correct
6 Correct 1 ms 2388 KB Output is correct
7 Correct 2 ms 2388 KB Output is correct
8 Correct 2 ms 2388 KB Output is correct
9 Correct 2 ms 2388 KB Output is correct
10 Correct 1 ms 2456 KB Output is correct
11 Correct 1 ms 2388 KB Output is correct
12 Correct 1 ms 2388 KB Output is correct
13 Correct 1 ms 2260 KB Output is correct
14 Correct 1 ms 2260 KB Output is correct
15 Correct 1 ms 2260 KB Output is correct
16 Correct 1 ms 2260 KB Output is correct
17 Correct 2 ms 2772 KB Output is correct
18 Correct 2 ms 2772 KB Output is correct
19 Correct 2 ms 2772 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 2 ms 2724 KB Output is correct
22 Correct 2 ms 2900 KB Output is correct
23 Correct 2 ms 2772 KB Output is correct
24 Correct 2 ms 2516 KB Output is correct
25 Correct 4 ms 4128 KB Output is correct
26 Correct 4 ms 4052 KB Output is correct
27 Correct 5 ms 4180 KB Output is correct
28 Correct 5 ms 3796 KB Output is correct
29 Correct 7 ms 3908 KB Output is correct
30 Correct 7 ms 4120 KB Output is correct
31 Correct 7 ms 4004 KB Output is correct
32 Correct 7 ms 3984 KB Output is correct
33 Correct 2 ms 2260 KB Output is correct
34 Correct 1 ms 2328 KB Output is correct
35 Correct 1 ms 2452 KB Output is correct
36 Correct 1 ms 2332 KB Output is correct
37 Correct 1 ms 2260 KB Output is correct
38 Correct 32 ms 16540 KB Output is correct
39 Correct 31 ms 16544 KB Output is correct
40 Correct 41 ms 16908 KB Output is correct
41 Correct 43 ms 16792 KB Output is correct
42 Correct 37 ms 18504 KB Output is correct
43 Correct 38 ms 18456 KB Output is correct
44 Correct 39 ms 18764 KB Output is correct
45 Correct 39 ms 18340 KB Output is correct
46 Correct 33 ms 13780 KB Output is correct
47 Correct 41 ms 13800 KB Output is correct
48 Correct 69 ms 14636 KB Output is correct
49 Correct 71 ms 16548 KB Output is correct
50 Correct 36 ms 8484 KB Output is correct
51 Correct 37 ms 12756 KB Output is correct
52 Correct 67 ms 15612 KB Output is correct
53 Correct 70 ms 16580 KB Output is correct

Subtask #5
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 29 ms 61240 KB Output is correct
2 Correct 26 ms 46292 KB Output is correct
3 Correct 29 ms 61104 KB Output is correct
4 Correct 1 ms 2260 KB Output is correct
5 Correct 28 ms 61180 KB Output is correct
6 Correct 29 ms 61176 KB Output is correct
7 Correct 30 ms 61068 KB Output is correct
8 Correct 29 ms 61084 KB Output is correct
9 Correct 29 ms 61156 KB Output is correct
10 Correct 32 ms 61196 KB Output is correct
11 Correct 29 ms 61072 KB Output is correct

Subtask #6
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2260 KB Output is correct
2 Correct 1 ms 2328 KB Output is correct
3 Correct 1 ms 2452 KB Output is correct
4 Correct 1 ms 2332 KB Output is correct
5 Correct 1 ms 2260 KB Output is correct
6 Correct 1 ms 2260 KB Output is correct
7 Correct 218 ms 76268 KB Output is correct
8 Correct 475 ms 122120 KB Output is correct
9 Correct 457 ms 122344 KB Output is correct
10 Correct 454 ms 122516 KB Output is correct
11 Correct 124 ms 91392 KB Output is correct
12 Correct 223 ms 112252 KB Output is correct
13 Correct 235 ms 122316 KB Output is correct

Subtask #7
28.0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2260 KB Output is correct
2 Correct 2 ms 2388 KB Output is correct
3 Correct 1 ms 2388 KB Output is correct
4 Correct 1 ms 2388 KB Output is correct
5 Correct 1 ms 2388 KB Output is correct
6 Correct 1 ms 2388 KB Output is correct
7 Correct 2 ms 2388 KB Output is correct
8 Correct 2 ms 2388 KB Output is correct
9 Correct 2 ms 2388 KB Output is correct
10 Correct 1 ms 2456 KB Output is correct
11 Correct 1 ms 2388 KB Output is correct
12 Correct 1 ms 2388 KB Output is correct
13 Correct 1 ms 2260 KB Output is correct
14 Correct 1 ms 2260 KB Output is correct
15 Correct 1 ms 2260 KB Output is correct
16 Correct 1 ms 2260 KB Output is correct
17 Correct 2 ms 2772 KB Output is correct
18 Correct 2 ms 2772 KB Output is correct
19 Correct 2 ms 2772 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 2 ms 2724 KB Output is correct
22 Correct 2 ms 2900 KB Output is correct
23 Correct 2 ms 2772 KB Output is correct
24 Correct 2 ms 2516 KB Output is correct
25 Correct 4 ms 4128 KB Output is correct
26 Correct 4 ms 4052 KB Output is correct
27 Correct 5 ms 4180 KB Output is correct
28 Correct 5 ms 3796 KB Output is correct
29 Correct 7 ms 3908 KB Output is correct
30 Correct 7 ms 4120 KB Output is correct
31 Correct 7 ms 4004 KB Output is correct
32 Correct 7 ms 3984 KB Output is correct
33 Correct 32 ms 16540 KB Output is correct
34 Correct 31 ms 16544 KB Output is correct
35 Correct 41 ms 16908 KB Output is correct
36 Correct 43 ms 16792 KB Output is correct
37 Correct 37 ms 18504 KB Output is correct
38 Correct 38 ms 18456 KB Output is correct
39 Correct 39 ms 18764 KB Output is correct
40 Correct 39 ms 18340 KB Output is correct
41 Correct 33 ms 13780 KB Output is correct
42 Correct 41 ms 13800 KB Output is correct
43 Correct 69 ms 14636 KB Output is correct
44 Correct 71 ms 16548 KB Output is correct
45 Correct 36 ms 8484 KB Output is correct
46 Correct 37 ms 12756 KB Output is correct
47 Correct 67 ms 15612 KB Output is correct
48 Correct 70 ms 16580 KB Output is correct
49 Correct 29 ms 61240 KB Output is correct
50 Correct 26 ms 46292 KB Output is correct
51 Correct 29 ms 61104 KB Output is correct
52 Correct 1 ms 2260 KB Output is correct
53 Correct 28 ms 61180 KB Output is correct
54 Correct 29 ms 61176 KB Output is correct
55 Correct 30 ms 61068 KB Output is correct
56 Correct 29 ms 61084 KB Output is correct
57 Correct 29 ms 61156 KB Output is correct
58 Correct 32 ms 61196 KB Output is correct
59 Correct 29 ms 61072 KB Output is correct
60 Correct 1 ms 2260 KB Output is correct
61 Correct 218 ms 76268 KB Output is correct
62 Correct 475 ms 122120 KB Output is correct
63 Correct 457 ms 122344 KB Output is correct
64 Correct 454 ms 122516 KB Output is correct
65 Correct 124 ms 91392 KB Output is correct
66 Correct 223 ms 112252 KB Output is correct
67 Correct 235 ms 122316 KB Output is correct
68 Correct 2 ms 2260 KB Output is correct
69 Correct 1 ms 2328 KB Output is correct
70 Correct 1 ms 2452 KB Output is correct
71 Correct 1 ms 2332 KB Output is correct
72 Correct 1 ms 2260 KB Output is correct
73 Correct 538 ms 163676 KB Output is correct
74 Correct 446 ms 163696 KB Output is correct
75 Correct 670 ms 169480 KB Output is correct
76 Correct 640 ms 169644 KB Output is correct
77 Correct 673 ms 186956 KB Output is correct
78 Correct 545 ms 104228 KB Output is correct
79 Correct 587 ms 81216 KB Output is correct
80 Correct 944 ms 132968 KB Output is correct
81 Correct 657 ms 119300 KB Output is correct
82 Correct 841 ms 119256 KB Output is correct
83 Correct 1014 ms 158100 KB Output is correct
84 Correct 567 ms 112072 KB Output is correct
85 Correct 948 ms 158240 KB Output is correct
86 Correct 931 ms 155576 KB Output is correct
87 Correct 325 ms 101836 KB Output is correct
88 Correct 635 ms 186860 KB Output is correct
89 Correct 611 ms 186908 KB Output is correct
90 Correct 613 ms 187084 KB Output is correct