oj.uz

Submission #564545

# Submission time Handle Problem Language Result Execution time Memory
564545 2022-05-19T10:48:43 Z shrimb Building Skyscrapers (CEOI19_skyscrapers) C++17
54 / 100
 715 ms 35220 KB 
#pragma GCC optimize ("Ofast")
#pragma GCC target ("avx,avx2,fma")

#include"bits/stdc++.h"
using namespace std;

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;

template<class x>
using ordered_set = tree<x, null_type,less<x>, rb_tree_tag,tree_order_statistics_node_update>;

#define int long long
#define endl '\n'
#define mod 1000000007
//\
#define mod 1686876991

int n, t;
int x[200001], y[200001];
int dx[] = {-1, 1, 0, 0, 1, 1, -1, -1};
int dy[] = {0, 0, 1, -1, 1, -1, 1, -1};
set<pair<int,int>> pts;
map<int,map<int,int>> pts2;
set<pair<int,int>> placed;
bitset<200001> taken;

signed main () {
    cin.tie(0)->sync_with_stdio(0);

    cin >> n >> t;

    for (int i = 0 ; i < n ; i++) {
        cin >> x[i] >> y[i];
        pts.insert({x[i], y[i]});
        pts2[x[i]][y[i]] = i;
    }

    if (n > 1) {
        for (int i = 0 ; i < n ; i++) {
            bool good = 0;
            for (int d = 0 ; d < 8 ; d++) {
                int u = x[i] + dx[d];
                int v = y[i] + dy[d];
                if (pts.count({u, v})) good = 1;
            }
            if (!good) {
                cout << "NO\n";
                return 0;
            }
        }
    }

    cout << "YES\n";
    priority_queue<array<int,3>> pos;
    int bx = -INT_MAX, by = -INT_MAX;
    int id = 0;
    for (int i = 0 ; i < n ; i++) {
        if (x[i] > bx) {
            bx = x[i], by = y[i];
            id = i;
        } else if (x[i] == bx and y[i] > by) {
            bx = x[i], by = y[i];
            id = i;
        }
    }
    pos.push({bx, by, id});
    while (pos.size()) {
        auto [x, y, i] = pos.top();
        pts2[x].erase(y);
        pos.pop();
        cout << i + 1 << endl;
        for (int d = 0 ; d < 8 ; d++) {
            int u = x + dx[d];
            int v = y + dy[d];
            if (pts2[u].count(v)) {
                pos.push({u, v, pts2[u][v]});
                pts2[u].erase(v);
            }
        }
    }
}

Compilation message

skyscrapers.cpp:17:1: warning: multi-line comment [-Wcomment]
   17 | //\
      | ^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB ans=YES N=1
2 Correct 0 ms 340 KB ans=YES N=4
3 Correct 1 ms 340 KB ans=NO N=4
4 Correct 0 ms 340 KB ans=YES N=5
5 Correct 1 ms 212 KB ans=YES N=9
6 Correct 0 ms 340 KB ans=YES N=5
7 Correct 0 ms 340 KB ans=NO N=9
8 Correct 0 ms 340 KB ans=NO N=10
9 Correct 0 ms 340 KB ans=YES N=10
10 Correct 0 ms 340 KB ans=YES N=10
11 Correct 1 ms 340 KB ans=YES N=10
12 Correct 0 ms 212 KB ans=YES N=9
13 Correct 1 ms 340 KB ans=YES N=9
14 Correct 0 ms 340 KB ans=YES N=8
15 Correct 0 ms 212 KB ans=YES N=8
16 Correct 0 ms 212 KB ans=NO N=2

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB ans=YES N=1
2 Correct 0 ms 340 KB ans=YES N=4
3 Correct 1 ms 340 KB ans=NO N=4
4 Correct 0 ms 340 KB ans=YES N=5
5 Correct 1 ms 212 KB ans=YES N=9
6 Correct 0 ms 340 KB ans=YES N=5
7 Correct 0 ms 340 KB ans=NO N=9
8 Correct 0 ms 340 KB ans=NO N=10
9 Correct 0 ms 340 KB ans=YES N=10
10 Correct 0 ms 340 KB ans=YES N=10
11 Correct 1 ms 340 KB ans=YES N=10
12 Correct 0 ms 212 KB ans=YES N=9
13 Correct 1 ms 340 KB ans=YES N=9
14 Correct 0 ms 340 KB ans=YES N=8
15 Correct 0 ms 212 KB ans=YES N=8
16 Correct 0 ms 212 KB ans=NO N=2
17 Correct 1 ms 340 KB ans=YES N=17
18 Correct 0 ms 340 KB ans=YES N=25
19 Correct 1 ms 340 KB ans=YES N=100
20 Correct 1 ms 340 KB ans=YES N=185
21 Correct 1 ms 340 KB ans=NO N=174
22 Correct 1 ms 340 KB ans=YES N=90
23 Correct 0 ms 340 KB ans=YES N=63
24 Correct 1 ms 340 KB ans=YES N=87
25 Correct 1 ms 340 KB ans=YES N=183
26 Correct 1 ms 340 KB ans=YES N=188
27 Correct 1 ms 340 KB ans=YES N=183
28 Correct 1 ms 340 KB ans=YES N=189
29 Correct 1 ms 340 KB ans=YES N=200
30 Correct 1 ms 340 KB ans=YES N=190
31 Correct 1 ms 340 KB ans=YES N=187
32 Correct 1 ms 340 KB ans=YES N=187
33 Correct 1 ms 340 KB ans=YES N=182
34 Correct 1 ms 340 KB ans=YES N=184
35 Correct 1 ms 340 KB ans=YES N=188
36 Correct 1 ms 340 KB ans=YES N=181
37 Correct 1 ms 340 KB ans=YES N=188
38 Correct 1 ms 340 KB ans=YES N=191
39 Correct 1 ms 340 KB ans=YES N=196
40 Correct 1 ms 340 KB ans=YES N=196
41 Correct 1 ms 340 KB ans=YES N=196
42 Correct 1 ms 340 KB ans=YES N=196
43 Correct 1 ms 340 KB ans=YES N=195

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB ans=YES N=1
2 Correct 0 ms 340 KB ans=YES N=4
3 Correct 1 ms 340 KB ans=NO N=4
4 Correct 0 ms 340 KB ans=YES N=5
5 Correct 1 ms 212 KB ans=YES N=9
6 Correct 0 ms 340 KB ans=YES N=5
7 Correct 0 ms 340 KB ans=NO N=9
8 Correct 0 ms 340 KB ans=NO N=10
9 Correct 0 ms 340 KB ans=YES N=10
10 Correct 0 ms 340 KB ans=YES N=10
11 Correct 1 ms 340 KB ans=YES N=10
12 Correct 0 ms 212 KB ans=YES N=9
13 Correct 1 ms 340 KB ans=YES N=9
14 Correct 0 ms 340 KB ans=YES N=8
15 Correct 0 ms 212 KB ans=YES N=8
16 Correct 0 ms 212 KB ans=NO N=2
17 Correct 1 ms 340 KB ans=YES N=17
18 Correct 0 ms 340 KB ans=YES N=25
19 Correct 1 ms 340 KB ans=YES N=100
20 Correct 1 ms 340 KB ans=YES N=185
21 Correct 1 ms 340 KB ans=NO N=174
22 Correct 1 ms 340 KB ans=YES N=90
23 Correct 0 ms 340 KB ans=YES N=63
24 Correct 1 ms 340 KB ans=YES N=87
25 Correct 1 ms 340 KB ans=YES N=183
26 Correct 1 ms 340 KB ans=YES N=188
27 Correct 1 ms 340 KB ans=YES N=183
28 Correct 1 ms 340 KB ans=YES N=189
29 Correct 1 ms 340 KB ans=YES N=200
30 Correct 1 ms 340 KB ans=YES N=190
31 Correct 1 ms 340 KB ans=YES N=187
32 Correct 1 ms 340 KB ans=YES N=187
33 Correct 1 ms 340 KB ans=YES N=182
34 Correct 1 ms 340 KB ans=YES N=184
35 Correct 1 ms 340 KB ans=YES N=188
36 Correct 1 ms 340 KB ans=YES N=181
37 Correct 1 ms 340 KB ans=YES N=188
38 Correct 1 ms 340 KB ans=YES N=191
39 Correct 1 ms 340 KB ans=YES N=196
40 Correct 1 ms 340 KB ans=YES N=196
41 Correct 1 ms 340 KB ans=YES N=196
42 Correct 1 ms 340 KB ans=YES N=196
43 Correct 1 ms 340 KB ans=YES N=195
44 Correct 2 ms 724 KB ans=NO N=1934
45 Correct 2 ms 596 KB ans=NO N=1965
46 Correct 3 ms 596 KB ans=YES N=1824
47 Correct 3 ms 596 KB ans=YES N=1981
48 Correct 3 ms 596 KB ans=YES N=1814
49 Correct 3 ms 596 KB ans=YES N=1854
50 Correct 4 ms 596 KB ans=YES N=1831
51 Correct 4 ms 596 KB ans=YES N=2000
52 Correct 3 ms 596 KB ans=YES N=1847
53 Correct 4 ms 596 KB ans=YES N=1819
54 Correct 3 ms 596 KB ans=YES N=1986
55 Correct 4 ms 596 KB ans=YES N=2000
56 Correct 4 ms 624 KB ans=YES N=1834
57 Correct 4 ms 596 KB ans=YES N=1860
58 Correct 4 ms 596 KB ans=YES N=1898
59 Correct 4 ms 596 KB ans=YES N=1832
60 Correct 4 ms 596 KB ans=YES N=1929
61 Correct 4 ms 624 KB ans=YES N=1919
62 Correct 4 ms 596 KB ans=YES N=1882
63 Correct 5 ms 596 KB ans=YES N=1922
64 Correct 4 ms 596 KB ans=YES N=1989
65 Correct 3 ms 596 KB ans=YES N=1978
66 Correct 3 ms 724 KB ans=YES N=1867
67 Correct 4 ms 596 KB ans=YES N=1942

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 724 KB ans=NO N=1934
2 Correct 2 ms 596 KB ans=NO N=1965
3 Incorrect 3 ms 596 KB Contestant's solution is not lexicographically largest at index 1824 (1813 vs 974)
4 Halted 0 ms 0 KB -

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB ans=YES N=1
2 Correct 0 ms 340 KB ans=YES N=4
3 Correct 1 ms 340 KB ans=NO N=4
4 Correct 0 ms 340 KB ans=YES N=5
5 Correct 1 ms 212 KB ans=YES N=9
6 Correct 0 ms 340 KB ans=YES N=5
7 Correct 0 ms 340 KB ans=NO N=9
8 Correct 0 ms 340 KB ans=NO N=10
9 Correct 0 ms 340 KB ans=YES N=10
10 Correct 0 ms 340 KB ans=YES N=10
11 Correct 1 ms 340 KB ans=YES N=10
12 Correct 0 ms 212 KB ans=YES N=9
13 Correct 1 ms 340 KB ans=YES N=9
14 Correct 0 ms 340 KB ans=YES N=8
15 Correct 0 ms 212 KB ans=YES N=8
16 Correct 0 ms 212 KB ans=NO N=2
17 Correct 1 ms 340 KB ans=YES N=17
18 Correct 0 ms 340 KB ans=YES N=25
19 Correct 1 ms 340 KB ans=YES N=100
20 Correct 1 ms 340 KB ans=YES N=185
21 Correct 1 ms 340 KB ans=NO N=174
22 Correct 1 ms 340 KB ans=YES N=90
23 Correct 0 ms 340 KB ans=YES N=63
24 Correct 1 ms 340 KB ans=YES N=87
25 Correct 1 ms 340 KB ans=YES N=183
26 Correct 1 ms 340 KB ans=YES N=188
27 Correct 1 ms 340 KB ans=YES N=183
28 Correct 1 ms 340 KB ans=YES N=189
29 Correct 1 ms 340 KB ans=YES N=200
30 Correct 1 ms 340 KB ans=YES N=190
31 Correct 1 ms 340 KB ans=YES N=187
32 Correct 1 ms 340 KB ans=YES N=187
33 Correct 1 ms 340 KB ans=YES N=182
34 Correct 1 ms 340 KB ans=YES N=184
35 Correct 1 ms 340 KB ans=YES N=188
36 Correct 1 ms 340 KB ans=YES N=181
37 Correct 1 ms 340 KB ans=YES N=188
38 Correct 1 ms 340 KB ans=YES N=191
39 Correct 1 ms 340 KB ans=YES N=196
40 Correct 1 ms 340 KB ans=YES N=196
41 Correct 1 ms 340 KB ans=YES N=196
42 Correct 1 ms 340 KB ans=YES N=196
43 Correct 1 ms 340 KB ans=YES N=195
44 Correct 2 ms 724 KB ans=NO N=1934
45 Correct 2 ms 596 KB ans=NO N=1965
46 Correct 3 ms 596 KB ans=YES N=1824
47 Correct 3 ms 596 KB ans=YES N=1981
48 Correct 3 ms 596 KB ans=YES N=1814
49 Correct 3 ms 596 KB ans=YES N=1854
50 Correct 4 ms 596 KB ans=YES N=1831
51 Correct 4 ms 596 KB ans=YES N=2000
52 Correct 3 ms 596 KB ans=YES N=1847
53 Correct 4 ms 596 KB ans=YES N=1819
54 Correct 3 ms 596 KB ans=YES N=1986
55 Correct 4 ms 596 KB ans=YES N=2000
56 Correct 4 ms 624 KB ans=YES N=1834
57 Correct 4 ms 596 KB ans=YES N=1860
58 Correct 4 ms 596 KB ans=YES N=1898
59 Correct 4 ms 596 KB ans=YES N=1832
60 Correct 4 ms 596 KB ans=YES N=1929
61 Correct 4 ms 624 KB ans=YES N=1919
62 Correct 4 ms 596 KB ans=YES N=1882
63 Correct 5 ms 596 KB ans=YES N=1922
64 Correct 4 ms 596 KB ans=YES N=1989
65 Correct 3 ms 596 KB ans=YES N=1978
66 Correct 3 ms 724 KB ans=YES N=1867
67 Correct 4 ms 596 KB ans=YES N=1942
68 Correct 62 ms 9616 KB ans=NO N=66151
69 Correct 64 ms 9520 KB ans=NO N=64333
70 Correct 245 ms 10492 KB ans=YES N=69316
71 Correct 195 ms 10140 KB ans=YES N=66695
72 Correct 238 ms 10464 KB ans=YES N=68436
73 Correct 255 ms 10596 KB ans=YES N=70000
74 Correct 266 ms 10444 KB ans=YES N=68501
75 Correct 248 ms 10592 KB ans=YES N=70000
76 Correct 237 ms 9896 KB ans=YES N=65009
77 Correct 236 ms 10216 KB ans=YES N=67007
78 Correct 218 ms 10192 KB ans=YES N=66357
79 Correct 208 ms 10132 KB ans=YES N=65430
80 Correct 223 ms 10060 KB ans=YES N=65790
81 Correct 250 ms 10060 KB ans=YES N=66020
82 Correct 224 ms 10048 KB ans=YES N=65809
83 Correct 227 ms 10000 KB ans=YES N=65651
84 Correct 235 ms 10328 KB ans=YES N=68040
85 Correct 203 ms 10212 KB ans=YES N=66570
86 Correct 195 ms 9948 KB ans=YES N=65421
87 Correct 206 ms 10420 KB ans=YES N=68351
88 Correct 191 ms 10148 KB ans=YES N=67027
89 Correct 156 ms 10440 KB ans=YES N=68879
90 Correct 191 ms 10228 KB ans=YES N=67256
91 Correct 617 ms 22228 KB ans=YES N=148315
92 Correct 156 ms 20604 KB ans=NO N=142745
93 Correct 192 ms 35220 KB ans=NO N=148443
94 Correct 598 ms 22212 KB ans=YES N=148328
95 Correct 588 ms 22068 KB ans=YES N=147855
96 Correct 613 ms 22508 KB ans=YES N=150000
97 Correct 564 ms 21864 KB ans=YES N=144725
98 Correct 619 ms 22392 KB ans=YES N=149445
99 Correct 575 ms 21572 KB ans=YES N=144455
100 Correct 594 ms 21436 KB ans=YES N=143487
101 Correct 638 ms 22348 KB ans=YES N=149688
102 Correct 560 ms 21348 KB ans=YES N=141481
103 Correct 654 ms 23312 KB ans=YES N=147430
104 Correct 620 ms 21328 KB ans=YES N=142247
105 Correct 715 ms 22412 KB ans=YES N=149941
106 Correct 578 ms 23176 KB ans=YES N=141635
107 Correct 628 ms 21488 KB ans=YES N=142896
108 Correct 561 ms 21444 KB ans=YES N=142069
109 Correct 592 ms 21316 KB ans=YES N=142378
110 Correct 595 ms 23188 KB ans=YES N=150000
111 Correct 528 ms 22208 KB ans=YES N=141452
112 Correct 492 ms 23748 KB ans=YES N=134453
113 Correct 494 ms 33992 KB ans=YES N=144172

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 9676 KB ans=NO N=66151
2 Correct 58 ms 9420 KB ans=NO N=64333
3 Incorrect 202 ms 10488 KB Contestant's solution is not lexicographically largest at index 69316 (69235 vs 51180)
4 Halted 0 ms 0 KB -

Subtask #7
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 724 KB ans=NO N=1934
2 Correct 2 ms 596 KB ans=NO N=1965
3 Incorrect 3 ms 596 KB Contestant's solution is not lexicographically largest at index 1824 (1813 vs 974)
4 Halted 0 ms 0 KB -