oj.uz

답안 #829525

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
829525 2023-08-18T12:01:47 Z kamelfanger83 Rectangles (IOI19_rect) C++17
100 / 100
 2876 ms 782076 KB 
#include <iostream>
#include <vector>
#include <array>
#include <algorithm>
#include <set>

using namespace std;

#define MAXN 2500
int n, m;
array<array<vector<int16_t>, MAXN>, MAXN> hors, verts;
vector<vector<signed>> aG;

void line(int i){
    vector<int> records = {0};
    for (int j = 1; j < m; ++j) {
        bool rsame = false;
        while (!records.empty() && aG[i][j] >= aG[i][records.back()]){
            if (aG[i][j] == aG[i][records.back()]) rsame = true;
            if (records.back() + 1 < j) hors[i][records.back() + 1].push_back(j - records.back() - 1);
            records.pop_back();
        }
        if (!records.empty() && records.back() + 1 < j && !rsame) hors[i][records.back() + 1].push_back(j - records.back() - 1);
        records.push_back(j);
    }
}

void column(int j){
    vector<int> records = {0};
    for (int i = 1; i < n; ++i) {
        bool rsame = false;
        while (!records.empty() && aG[i][j] >= aG[records.back()][j]){
            if (aG[i][j] == aG[records.back()][j]) rsame = true;
            if (records.back() + 1 < i) verts[records.back() + 1][j].push_back(i - records.back() - 1);
            records.pop_back();
        }
        if (!records.empty() && records.back() + 1 < i && !rsame) verts[records.back() + 1][j].push_back(i - records.back() - 1);
        records.push_back(i);
    }
}

long long count_rectangles(vector<vector<signed>> a){
    n = a.size(); m = a[0].size(); swap(aG, a);
    for (int i = 0; i < n; ++i) line(i);
    for (int j = 0; j < m; ++j) column(j);
    int ans = 0;
    array<vector<pair<int, int>>, MAXN> lastr;
    for (int j = m - 2; j >= 0; --j) {
        array<vector<pair<int, int>>, MAXN> tr;
        vector<pair<int, int>> down;
        for (int i = n - 2; i >= 0; --i) {
            sort(verts[i][j].begin(), verts[i][j].end());
            auto itt = lastr[i].begin();
            auto cs = verts[i][j].begin();
            while (itt != lastr[i].end() && cs != verts[i][j].end()){
                if ((*itt).second == *cs) tr[i].emplace_back((*itt++).first + 1, *cs++);
                else if ((*itt).second < *cs) itt++;
                else tr[i].emplace_back(1, *cs++);;
            }
            while (cs != verts[i][j].end()) tr[i].emplace_back(1, *cs++);
            vector<pair<int, int>> here;
            sort(hors[i][j].begin(), hors[i][j].end());
            itt = down.begin();
            cs = hors[i][j].begin();
            while (itt != down.end() && cs != hors[i][j].end()){
                if ((*itt).first == *cs) here.emplace_back(*cs++, (*itt++).second + 1);
                else if ((*itt).first < *cs) itt++;
                else here.emplace_back(*cs++, 1);
            }
            while (cs != hors[i][j].end()) here.emplace_back(*cs++, 1);
            multiset<int> hlimits;
            vector<pair<int, int>> vcopy = tr[i];
            sort(vcopy.begin(), vcopy.end());
            auto hor = here.begin();
            auto ver = vcopy.begin();
            while (hor != here.end() && ver != vcopy.end()){
                if ((*hor).first <= (*ver).first) hlimits.insert((*hor++).second);
                else ans += distance(hlimits.lower_bound((*ver++).second), hlimits.end());
            }
            while (ver != vcopy.end()) ans += distance(hlimits.lower_bound((*ver++).second), hlimits.end());
            swap(down, here);
        }
        swap(lastr, tr);
    }
    return ans;
}

/*
signed main(){
    cerr << count_rectangles({{10, 9, 8, 9, 10},
                              {9 , 8, 7, 8, 9 },
                              {8 , 7, 6, 7, 8 },
                              {7 , 6, 5, 6, 7 },
                              {8 , 7, 6, 7, 8 },
                              {9 , 8, 7, 8, 9 },
                              {10, 9, 8, 9, 10}}) << "\n";
    return 0;
}*/

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 126 ms 293836 KB Output is correct
2 Correct 120 ms 293952 KB Output is correct
3 Correct 121 ms 293984 KB Output is correct
4 Correct 131 ms 293972 KB Output is correct
5 Correct 122 ms 293940 KB Output is correct
6 Correct 122 ms 293904 KB Output is correct
7 Correct 136 ms 293888 KB Output is correct
8 Correct 126 ms 293900 KB Output is correct
9 Correct 126 ms 293960 KB Output is correct
10 Correct 142 ms 293964 KB Output is correct
11 Correct 124 ms 293968 KB Output is correct
12 Correct 124 ms 293936 KB Output is correct
13 Correct 121 ms 293852 KB Output is correct
14 Correct 122 ms 293848 KB Output is correct
15 Correct 125 ms 293880 KB Output is correct
16 Correct 121 ms 293864 KB Output is correct
17 Correct 123 ms 293920 KB Output is correct
18 Correct 138 ms 293900 KB Output is correct
19 Correct 121 ms 293916 KB Output is correct
20 Correct 124 ms 293820 KB Output is correct
21 Correct 126 ms 293908 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 126 ms 293836 KB Output is correct
2 Correct 120 ms 293952 KB Output is correct
3 Correct 121 ms 293984 KB Output is correct
4 Correct 131 ms 293972 KB Output is correct
5 Correct 122 ms 293940 KB Output is correct
6 Correct 122 ms 293904 KB Output is correct
7 Correct 136 ms 293888 KB Output is correct
8 Correct 126 ms 293900 KB Output is correct
9 Correct 126 ms 293960 KB Output is correct
10 Correct 142 ms 293964 KB Output is correct
11 Correct 124 ms 293968 KB Output is correct
12 Correct 124 ms 293936 KB Output is correct
13 Correct 121 ms 293852 KB Output is correct
14 Correct 122 ms 293848 KB Output is correct
15 Correct 125 ms 293880 KB Output is correct
16 Correct 121 ms 293864 KB Output is correct
17 Correct 123 ms 293920 KB Output is correct
18 Correct 138 ms 293900 KB Output is correct
19 Correct 121 ms 293916 KB Output is correct
20 Correct 124 ms 293820 KB Output is correct
21 Correct 126 ms 293908 KB Output is correct
22 Correct 128 ms 294356 KB Output is correct
23 Correct 133 ms 294268 KB Output is correct
24 Correct 123 ms 294376 KB Output is correct
25 Correct 123 ms 294116 KB Output is correct
26 Correct 144 ms 294172 KB Output is correct
27 Correct 125 ms 294092 KB Output is correct
28 Correct 141 ms 294056 KB Output is correct
29 Correct 122 ms 294028 KB Output is correct

Subtask #3
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 126 ms 293836 KB Output is correct
2 Correct 120 ms 293952 KB Output is correct
3 Correct 121 ms 293984 KB Output is correct
4 Correct 131 ms 293972 KB Output is correct
5 Correct 122 ms 293940 KB Output is correct
6 Correct 122 ms 293904 KB Output is correct
7 Correct 136 ms 293888 KB Output is correct
8 Correct 126 ms 293900 KB Output is correct
9 Correct 126 ms 293960 KB Output is correct
10 Correct 142 ms 293964 KB Output is correct
11 Correct 124 ms 293968 KB Output is correct
12 Correct 124 ms 293936 KB Output is correct
13 Correct 121 ms 293852 KB Output is correct
14 Correct 122 ms 293848 KB Output is correct
15 Correct 125 ms 293880 KB Output is correct
16 Correct 121 ms 293864 KB Output is correct
17 Correct 128 ms 294356 KB Output is correct
18 Correct 133 ms 294268 KB Output is correct
19 Correct 123 ms 294376 KB Output is correct
20 Correct 123 ms 294116 KB Output is correct
21 Correct 144 ms 294172 KB Output is correct
22 Correct 125 ms 294092 KB Output is correct
23 Correct 141 ms 294056 KB Output is correct
24 Correct 122 ms 294028 KB Output is correct
25 Correct 123 ms 293920 KB Output is correct
26 Correct 138 ms 293900 KB Output is correct
27 Correct 121 ms 293916 KB Output is correct
28 Correct 124 ms 293820 KB Output is correct
29 Correct 126 ms 293908 KB Output is correct
30 Correct 133 ms 296736 KB Output is correct
31 Correct 132 ms 296740 KB Output is correct
32 Correct 133 ms 296620 KB Output is correct
33 Correct 129 ms 294988 KB Output is correct
34 Correct 134 ms 295496 KB Output is correct
35 Correct 135 ms 295396 KB Output is correct
36 Correct 139 ms 295320 KB Output is correct
37 Correct 136 ms 295352 KB Output is correct

Subtask #4
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 126 ms 293836 KB Output is correct
2 Correct 120 ms 293952 KB Output is correct
3 Correct 121 ms 293984 KB Output is correct
4 Correct 131 ms 293972 KB Output is correct
5 Correct 122 ms 293940 KB Output is correct
6 Correct 122 ms 293904 KB Output is correct
7 Correct 136 ms 293888 KB Output is correct
8 Correct 126 ms 293900 KB Output is correct
9 Correct 126 ms 293960 KB Output is correct
10 Correct 142 ms 293964 KB Output is correct
11 Correct 124 ms 293968 KB Output is correct
12 Correct 124 ms 293936 KB Output is correct
13 Correct 121 ms 293852 KB Output is correct
14 Correct 122 ms 293848 KB Output is correct
15 Correct 125 ms 293880 KB Output is correct
16 Correct 121 ms 293864 KB Output is correct
17 Correct 128 ms 294356 KB Output is correct
18 Correct 133 ms 294268 KB Output is correct
19 Correct 123 ms 294376 KB Output is correct
20 Correct 123 ms 294116 KB Output is correct
21 Correct 144 ms 294172 KB Output is correct
22 Correct 125 ms 294092 KB Output is correct
23 Correct 141 ms 294056 KB Output is correct
24 Correct 122 ms 294028 KB Output is correct
25 Correct 133 ms 296736 KB Output is correct
26 Correct 132 ms 296740 KB Output is correct
27 Correct 133 ms 296620 KB Output is correct
28 Correct 129 ms 294988 KB Output is correct
29 Correct 134 ms 295496 KB Output is correct
30 Correct 135 ms 295396 KB Output is correct
31 Correct 139 ms 295320 KB Output is correct
32 Correct 136 ms 295352 KB Output is correct
33 Correct 123 ms 293920 KB Output is correct
34 Correct 138 ms 293900 KB Output is correct
35 Correct 121 ms 293916 KB Output is correct
36 Correct 124 ms 293820 KB Output is correct
37 Correct 126 ms 293908 KB Output is correct
38 Correct 221 ms 313048 KB Output is correct
39 Correct 194 ms 306236 KB Output is correct
40 Correct 197 ms 306224 KB Output is correct
41 Correct 164 ms 299340 KB Output is correct
42 Correct 311 ms 328440 KB Output is correct
43 Correct 290 ms 328400 KB Output is correct
44 Correct 292 ms 328444 KB Output is correct
45 Correct 265 ms 326092 KB Output is correct
46 Correct 201 ms 305548 KB Output is correct
47 Correct 222 ms 308024 KB Output is correct
48 Correct 286 ms 313096 KB Output is correct
49 Correct 293 ms 313068 KB Output is correct
50 Correct 209 ms 303456 KB Output is correct
51 Correct 226 ms 303436 KB Output is correct
52 Correct 279 ms 311812 KB Output is correct
53 Correct 286 ms 312140 KB Output is correct

Subtask #5
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 145 ms 294196 KB Output is correct
2 Correct 145 ms 294188 KB Output is correct
3 Correct 144 ms 294000 KB Output is correct
4 Correct 123 ms 293944 KB Output is correct
5 Correct 144 ms 294132 KB Output is correct
6 Correct 149 ms 294136 KB Output is correct
7 Correct 144 ms 294136 KB Output is correct
8 Correct 151 ms 294068 KB Output is correct
9 Correct 142 ms 294004 KB Output is correct
10 Correct 164 ms 293996 KB Output is correct
11 Correct 176 ms 294020 KB Output is correct

Subtask #6
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 123 ms 293920 KB Output is correct
2 Correct 138 ms 293900 KB Output is correct
3 Correct 121 ms 293916 KB Output is correct
4 Correct 124 ms 293820 KB Output is correct
5 Correct 126 ms 293908 KB Output is correct
6 Correct 153 ms 293860 KB Output is correct
7 Correct 867 ms 361172 KB Output is correct
8 Correct 1321 ms 440008 KB Output is correct
9 Correct 1431 ms 440720 KB Output is correct
10 Correct 1310 ms 440772 KB Output is correct
11 Correct 432 ms 318176 KB Output is correct
12 Correct 724 ms 340004 KB Output is correct
13 Correct 743 ms 343048 KB Output is correct

Subtask #7
28.0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 126 ms 293836 KB Output is correct
2 Correct 120 ms 293952 KB Output is correct
3 Correct 121 ms 293984 KB Output is correct
4 Correct 131 ms 293972 KB Output is correct
5 Correct 122 ms 293940 KB Output is correct
6 Correct 122 ms 293904 KB Output is correct
7 Correct 136 ms 293888 KB Output is correct
8 Correct 126 ms 293900 KB Output is correct
9 Correct 126 ms 293960 KB Output is correct
10 Correct 142 ms 293964 KB Output is correct
11 Correct 124 ms 293968 KB Output is correct
12 Correct 124 ms 293936 KB Output is correct
13 Correct 121 ms 293852 KB Output is correct
14 Correct 122 ms 293848 KB Output is correct
15 Correct 125 ms 293880 KB Output is correct
16 Correct 121 ms 293864 KB Output is correct
17 Correct 128 ms 294356 KB Output is correct
18 Correct 133 ms 294268 KB Output is correct
19 Correct 123 ms 294376 KB Output is correct
20 Correct 123 ms 294116 KB Output is correct
21 Correct 144 ms 294172 KB Output is correct
22 Correct 125 ms 294092 KB Output is correct
23 Correct 141 ms 294056 KB Output is correct
24 Correct 122 ms 294028 KB Output is correct
25 Correct 133 ms 296736 KB Output is correct
26 Correct 132 ms 296740 KB Output is correct
27 Correct 133 ms 296620 KB Output is correct
28 Correct 129 ms 294988 KB Output is correct
29 Correct 134 ms 295496 KB Output is correct
30 Correct 135 ms 295396 KB Output is correct
31 Correct 139 ms 295320 KB Output is correct
32 Correct 136 ms 295352 KB Output is correct
33 Correct 221 ms 313048 KB Output is correct
34 Correct 194 ms 306236 KB Output is correct
35 Correct 197 ms 306224 KB Output is correct
36 Correct 164 ms 299340 KB Output is correct
37 Correct 311 ms 328440 KB Output is correct
38 Correct 290 ms 328400 KB Output is correct
39 Correct 292 ms 328444 KB Output is correct
40 Correct 265 ms 326092 KB Output is correct
41 Correct 201 ms 305548 KB Output is correct
42 Correct 222 ms 308024 KB Output is correct
43 Correct 286 ms 313096 KB Output is correct
44 Correct 293 ms 313068 KB Output is correct
45 Correct 209 ms 303456 KB Output is correct
46 Correct 226 ms 303436 KB Output is correct
47 Correct 279 ms 311812 KB Output is correct
48 Correct 286 ms 312140 KB Output is correct
49 Correct 145 ms 294196 KB Output is correct
50 Correct 145 ms 294188 KB Output is correct
51 Correct 144 ms 294000 KB Output is correct
52 Correct 123 ms 293944 KB Output is correct
53 Correct 144 ms 294132 KB Output is correct
54 Correct 149 ms 294136 KB Output is correct
55 Correct 144 ms 294136 KB Output is correct
56 Correct 151 ms 294068 KB Output is correct
57 Correct 142 ms 294004 KB Output is correct
58 Correct 164 ms 293996 KB Output is correct
59 Correct 176 ms 294020 KB Output is correct
60 Correct 153 ms 293860 KB Output is correct
61 Correct 867 ms 361172 KB Output is correct
62 Correct 1321 ms 440008 KB Output is correct
63 Correct 1431 ms 440720 KB Output is correct
64 Correct 1310 ms 440772 KB Output is correct
65 Correct 432 ms 318176 KB Output is correct
66 Correct 724 ms 340004 KB Output is correct
67 Correct 743 ms 343048 KB Output is correct
68 Correct 123 ms 293920 KB Output is correct
69 Correct 138 ms 293900 KB Output is correct
70 Correct 121 ms 293916 KB Output is correct
71 Correct 124 ms 293820 KB Output is correct
72 Correct 126 ms 293908 KB Output is correct
73 Correct 1927 ms 538744 KB Output is correct
74 Correct 1789 ms 450148 KB Output is correct
75 Correct 1235 ms 450020 KB Output is correct
76 Correct 997 ms 361360 KB Output is correct
77 Correct 2708 ms 782008 KB Output is correct
78 Correct 1485 ms 454156 KB Output is correct
79 Correct 1959 ms 470592 KB Output is correct
80 Correct 2876 ms 561076 KB Output is correct
81 Correct 1678 ms 469500 KB Output is correct
82 Correct 2188 ms 528240 KB Output is correct
83 Correct 2713 ms 586788 KB Output is correct
84 Correct 1503 ms 453316 KB Output is correct
85 Correct 2592 ms 573288 KB Output is correct
86 Correct 2673 ms 564852 KB Output is correct
87 Correct 1768 ms 586844 KB Output is correct
88 Correct 2647 ms 781672 KB Output is correct
89 Correct 2478 ms 782000 KB Output is correct
90 Correct 2624 ms 782076 KB Output is correct