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답안 #565422

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
565422 2022-05-20T21:21:23 Z shrimb Building Skyscrapers (CEOI19_skyscrapers) C++17
51 / 100
 3500 ms 52680 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

#define MN -1000000001

const int maxn = 150001;
const int dx[] = {-1, 1, 0, 0, 1, 1, -1, -1};
const int dy[] = {0, 0, 1, -1, -1, 1, -1, 1};
//
const int roundx[] = {1, 1, 0, -1, -1, -1, 0, 1, 1};
const int roundy[] = {0, 1, 1, 1, 0, -1, -1, -1, 0};

struct cell {int x, y, id;};

struct neal {
static uint64_t splitmix64(uint64_t x)
 {
    x += 0x9e3779b97f4a7c15;
    x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
    x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
    return x ^ (x >> 31);
}
size_t operator()(uint64_t x) const
 {
    static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
    return splitmix64(x + FIXED_RANDOM);
}
};

long long HASH (int a, int b) {
    return ((long long)a)+(100000000ll * b);
}

int n, t, ID = 0, buf;
int x[maxn], y[maxn];
cell cells[maxn];
int dsu[4 * maxn];
vector<pair<int,int>> vec[4 * maxn];
bool out[4 * maxn];
pair<int,int> mp[4 * maxn];
unordered_set<long long> S;

unordered_map<int,unordered_map<int,int,neal>,neal> Empty, Full; // maps cell to dsu
set<cell> active, expendable;

bool operator < (const cell& a, const cell& b) {
    return a.id > b.id;
}

int Find (int x) {
    return dsu[x] == x ? x : dsu[x] = Find(dsu[x]);
}

void check (const cell &c) {
    auto [u, v, id] = c;
    int prev = -1;
    bool artic = 0, sep = 0;
    vector<int> to_reset;
    for (int w = 0 ; w < 9 ; w++) {
        int d = w%8;
        int u2 = u + roundx[d];
        int v2 = v + roundy[d];
        if (S.count(HASH(u2,v2))) sep = 1;
        else {
            if (d & 1) {
                continue;
            }
            int cmp = Find(Empty[u2][v2]);
            if (mp[cmp].first != MN and sep == 1) {
                auto [pu, pv] = mp[cmp];
                bool bad = 0;
                for (int ww = w ; ; ww++) {
                    int d2 = ww % 8;
                    int u3 = u + roundx[d2];
                    int v3 = v + roundy[d2];
                    if (u3 == pu and v3 == pv) {
                        break;
                    }
                    else {
                        if (S.count(HASH(u3,v3))) {
                            bad = 1;
                            break;
                        }
                    }
                }
                if (bad) artic = 1;
            }
            mp[cmp] = {u2, v2};
            to_reset.push_back(cmp);
            sep = 0;
            prev = cmp;
        }
    }

    for (int cmp : to_reset) {
        mp[cmp] = {MN,-1};
    }
    bool isout = 0;
    if (!artic) {
        for (int d = 0 ; d < 4 ; d++) {
            int u2 = u + dx[d];
            int v2 = v + dy[d];
            if (Empty[u2].count(v2)) {
                int cmp = Find(Empty[u2][v2]);
                if (out[cmp]) isout = 1;
            }
        }
    }
    if (isout and !artic) expendable.insert(c);
    else expendable.erase(c);
}


void Union (int a, int b) {
    int x = Find(a), y = Find(b);
    if (x == y) return;
    if (vec[x].size() < vec[y].size()) {
        out[y] |= out[x];
        dsu[x] = y;
        for (auto [u, v] : vec[x]) {
            vec[y].push_back({u, v});
            for (int d = 0 ; d < 8 ; d++) {
                if (Full[u + dx[d]].count(v + dy[d])) check(cells[Full[u + dx[d]][v + dy[d]]]);
            }
        }
        vec[x].clear();
    } else {
        out[x] |= out[y];
        dsu[y] = x;
        for (auto [u, v] : vec[y]) {
            vec[x].push_back({u, v});
            for (int d = 0 ; d < 8 ; d++) {
                if (Full[u + dx[d]].count(v + dy[d])) check(cells[Full[u + dx[d]][v + dy[d]]]);
            }
        }
        vec[y].clear();
    }
}

signed main () {
    cin.tie(0)->sync_with_stdio(0);
    Empty.reserve(262144);
    Full.reserve(262144);
    Empty.max_load_factor(0.25);
    Full.max_load_factor(0.25);
    cin >> n >> t;
    for (auto& [i, j] : mp) i = j = MN;

    for (int i = 0 ; i < n ; i++) {
        cin >> x[i] >> y[i];
        cells[i] = {x[i], y[i], i};
        Full[x[i]][y[i]] = i;
        S.insert(HASH(x[i], y[i]));
        active.insert(cells[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];
                good |= Full[u].count(v);
            }
            if (!good) {
                cout << "NO\n";
                return 0;
            }
        }
    }

    /* set at leat one node as out (for reference) */ {
        pair<int,int> mn = {x[0], y[0]};

        for (int i = 0 ; i < n ; i++) {
            mn = min(mn, {x[i], y[i]});
        }
        auto [u, v] = mn; u--;
        int id = Empty[u][v] = ID++;
        dsu[id] = id;
        vec[id].push_back({u, v});
        out[id] = 1;
    }

    for (int i = 0 ; i < n ; i++) {
        for (int d = 0 ; d < 8 ; d++) {
            int u = x[i] + dx[d];
            int v = y[i] + dy[d];
            if (!Full[u].count(v) and !Empty[u].count(v)) {
                int id = Empty[u][v] = ID++;
                dsu[id] = id;
                vec[id].push_back({u, v});
            }
        }
    }

    for (int i = 0 ; i < n ; i++) {
        for (int d = 0 ; d < 8 ; d++) {
            int u = x[i] + dx[d];
            int v = y[i] + dy[d];
            if (!S.count(HASH(u,v))) {
                for (int d2 = 0 ; d2 < 4 ; d2++) {
                    int u2 = u + dx[d2];
                    int v2 = v + dy[d2];
                    if (Empty[u2].count(v2)) {
                        Union(Empty[u][v], Empty[u2][v2]);
                    }
                }
            }
        }
    }

    for (int i = 0 ; i < n ; i++) check(cells[i]);

    cout << "YES\n";

    vector<int> ans;

    while (expendable.size()) {
        auto [a, b, c] = *expendable.begin();
        expendable.erase(expendable.begin());
        ans.push_back(c + 1);
        Full[a].erase(b);
        S.erase(HASH(a, b));
        int id = Empty[a][b] = ID++;
        dsu[id] = id;
        vec[id].push_back({a, b});
        for (int d = 0 ; d < 4 ; d++) {
            int u = a + dx[d];
            int v = b + dy[d];
            if (Empty[u].count(v)) {
                Union(Empty[u][v], id);
            }
        }
        for (int d = 0 ; d < 8 ; d++) {
            int u = a + dx[d];
            int v = b + dy[d];
            if (S.count(HASH(u,v))) check(cells[Full[u][v]]);
        }
    }

    reverse(ans.begin(), ans.end());

    for (int i : ans) cout << i << "\n";
}

Compilation message

skyscrapers.cpp:17:1: warning: multi-line comment [-Wcomment]
   17 | //\
      | ^
skyscrapers.cpp: In function 'void check(const cell&)':
skyscrapers.cpp:72:9: warning: variable 'prev' set but not used [-Wunused-but-set-variable]
   72 |     int prev = -1;
      |         ^~~~

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 23380 KB ans=YES N=1
2 Correct 13 ms 23376 KB ans=YES N=4
3 Correct 13 ms 23400 KB ans=NO N=4
4 Correct 13 ms 23380 KB ans=YES N=5
5 Correct 13 ms 23380 KB ans=YES N=9
6 Correct 12 ms 23380 KB ans=YES N=5
7 Correct 16 ms 23432 KB ans=NO N=9
8 Correct 12 ms 23392 KB ans=NO N=10
9 Correct 12 ms 23380 KB ans=YES N=10
10 Correct 13 ms 23384 KB ans=YES N=10
11 Correct 12 ms 23396 KB ans=YES N=10
12 Correct 12 ms 23380 KB ans=YES N=9
13 Correct 12 ms 23380 KB ans=YES N=9
14 Correct 15 ms 23416 KB ans=YES N=8
15 Correct 13 ms 23480 KB ans=YES N=8
16 Correct 13 ms 23380 KB ans=NO N=2

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 23380 KB ans=YES N=1
2 Correct 13 ms 23376 KB ans=YES N=4
3 Correct 13 ms 23400 KB ans=NO N=4
4 Correct 13 ms 23380 KB ans=YES N=5
5 Correct 13 ms 23380 KB ans=YES N=9
6 Correct 12 ms 23380 KB ans=YES N=5
7 Correct 16 ms 23432 KB ans=NO N=9
8 Correct 12 ms 23392 KB ans=NO N=10
9 Correct 12 ms 23380 KB ans=YES N=10
10 Correct 13 ms 23384 KB ans=YES N=10
11 Correct 12 ms 23396 KB ans=YES N=10
12 Correct 12 ms 23380 KB ans=YES N=9
13 Correct 12 ms 23380 KB ans=YES N=9
14 Correct 15 ms 23416 KB ans=YES N=8
15 Correct 13 ms 23480 KB ans=YES N=8
16 Correct 13 ms 23380 KB ans=NO N=2
17 Correct 12 ms 23380 KB ans=YES N=17
18 Correct 12 ms 23452 KB ans=YES N=25
19 Correct 14 ms 23416 KB ans=YES N=100
20 Correct 14 ms 23432 KB ans=YES N=185
21 Correct 12 ms 23508 KB ans=NO N=174
22 Correct 12 ms 23484 KB ans=YES N=90
23 Correct 13 ms 23440 KB ans=YES N=63
24 Correct 14 ms 23400 KB ans=YES N=87
25 Correct 13 ms 23544 KB ans=YES N=183
26 Correct 15 ms 23508 KB ans=YES N=188
27 Correct 16 ms 23560 KB ans=YES N=183
28 Correct 14 ms 23512 KB ans=YES N=189
29 Correct 16 ms 23508 KB ans=YES N=200
30 Correct 18 ms 23536 KB ans=YES N=190
31 Correct 15 ms 23504 KB ans=YES N=187
32 Correct 18 ms 23508 KB ans=YES N=187
33 Correct 17 ms 23508 KB ans=YES N=182
34 Correct 17 ms 23508 KB ans=YES N=184
35 Correct 19 ms 23588 KB ans=YES N=188
36 Correct 18 ms 23508 KB ans=YES N=181
37 Correct 17 ms 23548 KB ans=YES N=188
38 Correct 17 ms 23508 KB ans=YES N=191
39 Correct 15 ms 23564 KB ans=YES N=196
40 Correct 15 ms 23512 KB ans=YES N=196
41 Correct 15 ms 23508 KB ans=YES N=196
42 Correct 15 ms 23540 KB ans=YES N=196
43 Correct 18 ms 23560 KB ans=YES N=195

Subtask #3
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 23380 KB ans=YES N=1
2 Correct 13 ms 23376 KB ans=YES N=4
3 Correct 13 ms 23400 KB ans=NO N=4
4 Correct 13 ms 23380 KB ans=YES N=5
5 Correct 13 ms 23380 KB ans=YES N=9
6 Correct 12 ms 23380 KB ans=YES N=5
7 Correct 16 ms 23432 KB ans=NO N=9
8 Correct 12 ms 23392 KB ans=NO N=10
9 Correct 12 ms 23380 KB ans=YES N=10
10 Correct 13 ms 23384 KB ans=YES N=10
11 Correct 12 ms 23396 KB ans=YES N=10
12 Correct 12 ms 23380 KB ans=YES N=9
13 Correct 12 ms 23380 KB ans=YES N=9
14 Correct 15 ms 23416 KB ans=YES N=8
15 Correct 13 ms 23480 KB ans=YES N=8
16 Correct 13 ms 23380 KB ans=NO N=2
17 Correct 12 ms 23380 KB ans=YES N=17
18 Correct 12 ms 23452 KB ans=YES N=25
19 Correct 14 ms 23416 KB ans=YES N=100
20 Correct 14 ms 23432 KB ans=YES N=185
21 Correct 12 ms 23508 KB ans=NO N=174
22 Correct 12 ms 23484 KB ans=YES N=90
23 Correct 13 ms 23440 KB ans=YES N=63
24 Correct 14 ms 23400 KB ans=YES N=87
25 Correct 13 ms 23544 KB ans=YES N=183
26 Correct 15 ms 23508 KB ans=YES N=188
27 Correct 16 ms 23560 KB ans=YES N=183
28 Correct 14 ms 23512 KB ans=YES N=189
29 Correct 16 ms 23508 KB ans=YES N=200
30 Correct 18 ms 23536 KB ans=YES N=190
31 Correct 15 ms 23504 KB ans=YES N=187
32 Correct 18 ms 23508 KB ans=YES N=187
33 Correct 17 ms 23508 KB ans=YES N=182
34 Correct 17 ms 23508 KB ans=YES N=184
35 Correct 19 ms 23588 KB ans=YES N=188
36 Correct 18 ms 23508 KB ans=YES N=181
37 Correct 17 ms 23548 KB ans=YES N=188
38 Correct 17 ms 23508 KB ans=YES N=191
39 Correct 15 ms 23564 KB ans=YES N=196
40 Correct 15 ms 23512 KB ans=YES N=196
41 Correct 15 ms 23508 KB ans=YES N=196
42 Correct 15 ms 23540 KB ans=YES N=196
43 Correct 18 ms 23560 KB ans=YES N=195
44 Correct 13 ms 24160 KB ans=NO N=1934
45 Correct 12 ms 23764 KB ans=NO N=1965
46 Correct 31 ms 23940 KB ans=YES N=1824
47 Correct 36 ms 23880 KB ans=YES N=1981
48 Correct 30 ms 23900 KB ans=YES N=1814
49 Correct 37 ms 23996 KB ans=YES N=1854
50 Correct 33 ms 23868 KB ans=YES N=1831
51 Correct 38 ms 23972 KB ans=YES N=2000
52 Correct 54 ms 23988 KB ans=YES N=1847
53 Correct 61 ms 24024 KB ans=YES N=1819
54 Correct 33 ms 23896 KB ans=YES N=1986
55 Correct 66 ms 24272 KB ans=YES N=2000
56 Correct 75 ms 24460 KB ans=YES N=1834
57 Correct 86 ms 24416 KB ans=YES N=1860
58 Correct 83 ms 24496 KB ans=YES N=1898
59 Correct 65 ms 24248 KB ans=YES N=1832
60 Correct 98 ms 24696 KB ans=YES N=1929
61 Correct 45 ms 24020 KB ans=YES N=1919
62 Correct 77 ms 24316 KB ans=YES N=1882
63 Correct 97 ms 24800 KB ans=YES N=1922
64 Correct 39 ms 24332 KB ans=YES N=1989
65 Correct 70 ms 24352 KB ans=YES N=1978
66 Correct 57 ms 24768 KB ans=YES N=1867
67 Correct 65 ms 24256 KB ans=YES N=1942

Subtask #4
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 24148 KB ans=NO N=1934
2 Correct 13 ms 23740 KB ans=NO N=1965
3 Correct 32 ms 23864 KB ans=YES N=1824
4 Correct 36 ms 23892 KB ans=YES N=1981
5 Correct 31 ms 23840 KB ans=YES N=1814
6 Correct 41 ms 24012 KB ans=YES N=1854
7 Correct 34 ms 23852 KB ans=YES N=1831
8 Correct 36 ms 23944 KB ans=YES N=2000
9 Correct 44 ms 24020 KB ans=YES N=1847
10 Correct 51 ms 24036 KB ans=YES N=1819
11 Correct 39 ms 23944 KB ans=YES N=1986
12 Correct 66 ms 24268 KB ans=YES N=2000
13 Correct 74 ms 24420 KB ans=YES N=1834
14 Correct 76 ms 24396 KB ans=YES N=1860
15 Correct 79 ms 24424 KB ans=YES N=1898
16 Correct 69 ms 24304 KB ans=YES N=1832
17 Correct 99 ms 24652 KB ans=YES N=1929
18 Correct 43 ms 24060 KB ans=YES N=1919
19 Correct 74 ms 24324 KB ans=YES N=1882
20 Correct 98 ms 24732 KB ans=YES N=1922
21 Correct 42 ms 24340 KB ans=YES N=1989
22 Correct 72 ms 24356 KB ans=YES N=1978
23 Correct 74 ms 24800 KB ans=YES N=1867

Subtask #5
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 23380 KB ans=YES N=1
2 Correct 13 ms 23376 KB ans=YES N=4
3 Correct 13 ms 23400 KB ans=NO N=4
4 Correct 13 ms 23380 KB ans=YES N=5
5 Correct 13 ms 23380 KB ans=YES N=9
6 Correct 12 ms 23380 KB ans=YES N=5
7 Correct 16 ms 23432 KB ans=NO N=9
8 Correct 12 ms 23392 KB ans=NO N=10
9 Correct 12 ms 23380 KB ans=YES N=10
10 Correct 13 ms 23384 KB ans=YES N=10
11 Correct 12 ms 23396 KB ans=YES N=10
12 Correct 12 ms 23380 KB ans=YES N=9
13 Correct 12 ms 23380 KB ans=YES N=9
14 Correct 15 ms 23416 KB ans=YES N=8
15 Correct 13 ms 23480 KB ans=YES N=8
16 Correct 13 ms 23380 KB ans=NO N=2
17 Correct 12 ms 23380 KB ans=YES N=17
18 Correct 12 ms 23452 KB ans=YES N=25
19 Correct 14 ms 23416 KB ans=YES N=100
20 Correct 14 ms 23432 KB ans=YES N=185
21 Correct 12 ms 23508 KB ans=NO N=174
22 Correct 12 ms 23484 KB ans=YES N=90
23 Correct 13 ms 23440 KB ans=YES N=63
24 Correct 14 ms 23400 KB ans=YES N=87
25 Correct 13 ms 23544 KB ans=YES N=183
26 Correct 15 ms 23508 KB ans=YES N=188
27 Correct 16 ms 23560 KB ans=YES N=183
28 Correct 14 ms 23512 KB ans=YES N=189
29 Correct 16 ms 23508 KB ans=YES N=200
30 Correct 18 ms 23536 KB ans=YES N=190
31 Correct 15 ms 23504 KB ans=YES N=187
32 Correct 18 ms 23508 KB ans=YES N=187
33 Correct 17 ms 23508 KB ans=YES N=182
34 Correct 17 ms 23508 KB ans=YES N=184
35 Correct 19 ms 23588 KB ans=YES N=188
36 Correct 18 ms 23508 KB ans=YES N=181
37 Correct 17 ms 23548 KB ans=YES N=188
38 Correct 17 ms 23508 KB ans=YES N=191
39 Correct 15 ms 23564 KB ans=YES N=196
40 Correct 15 ms 23512 KB ans=YES N=196
41 Correct 15 ms 23508 KB ans=YES N=196
42 Correct 15 ms 23540 KB ans=YES N=196
43 Correct 18 ms 23560 KB ans=YES N=195
44 Correct 13 ms 24160 KB ans=NO N=1934
45 Correct 12 ms 23764 KB ans=NO N=1965
46 Correct 31 ms 23940 KB ans=YES N=1824
47 Correct 36 ms 23880 KB ans=YES N=1981
48 Correct 30 ms 23900 KB ans=YES N=1814
49 Correct 37 ms 23996 KB ans=YES N=1854
50 Correct 33 ms 23868 KB ans=YES N=1831
51 Correct 38 ms 23972 KB ans=YES N=2000
52 Correct 54 ms 23988 KB ans=YES N=1847
53 Correct 61 ms 24024 KB ans=YES N=1819
54 Correct 33 ms 23896 KB ans=YES N=1986
55 Correct 66 ms 24272 KB ans=YES N=2000
56 Correct 75 ms 24460 KB ans=YES N=1834
57 Correct 86 ms 24416 KB ans=YES N=1860
58 Correct 83 ms 24496 KB ans=YES N=1898
59 Correct 65 ms 24248 KB ans=YES N=1832
60 Correct 98 ms 24696 KB ans=YES N=1929
61 Correct 45 ms 24020 KB ans=YES N=1919
62 Correct 77 ms 24316 KB ans=YES N=1882
63 Correct 97 ms 24800 KB ans=YES N=1922
64 Correct 39 ms 24332 KB ans=YES N=1989
65 Correct 70 ms 24352 KB ans=YES N=1978
66 Correct 57 ms 24768 KB ans=YES N=1867
67 Correct 65 ms 24256 KB ans=YES N=1942
68 Correct 79 ms 34308 KB ans=NO N=66151
69 Correct 73 ms 34376 KB ans=NO N=64333
70 Correct 1152 ms 39016 KB ans=YES N=69316
71 Correct 1095 ms 38444 KB ans=YES N=66695
72 Correct 1188 ms 38756 KB ans=YES N=68436
73 Correct 1177 ms 39276 KB ans=YES N=70000
74 Correct 1245 ms 39156 KB ans=YES N=68501
75 Correct 1311 ms 39688 KB ans=YES N=70000
76 Correct 1392 ms 39632 KB ans=YES N=65009
77 Correct 2997 ms 48584 KB ans=YES N=67007
78 Execution timed out 3580 ms 52680 KB Time limit exceeded
79 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 87 ms 34316 KB ans=NO N=66151
2 Correct 85 ms 34348 KB ans=NO N=64333
3 Correct 1182 ms 39008 KB ans=YES N=69316
4 Correct 1141 ms 38452 KB ans=YES N=66695
5 Correct 1241 ms 38836 KB ans=YES N=68436
6 Correct 1179 ms 39128 KB ans=YES N=70000
7 Correct 1238 ms 39100 KB ans=YES N=68501
8 Correct 1352 ms 39752 KB ans=YES N=70000
9 Correct 1412 ms 39652 KB ans=YES N=65009
10 Correct 2932 ms 48448 KB ans=YES N=67007
11 Execution timed out 3579 ms 52540 KB Time limit exceeded
12 Halted 0 ms 0 KB -

Subtask #7
0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 24148 KB ans=NO N=1934
2 Correct 13 ms 23740 KB ans=NO N=1965
3 Correct 32 ms 23864 KB ans=YES N=1824
4 Correct 36 ms 23892 KB ans=YES N=1981
5 Correct 31 ms 23840 KB ans=YES N=1814
6 Correct 41 ms 24012 KB ans=YES N=1854
7 Correct 34 ms 23852 KB ans=YES N=1831
8 Correct 36 ms 23944 KB ans=YES N=2000
9 Correct 44 ms 24020 KB ans=YES N=1847
10 Correct 51 ms 24036 KB ans=YES N=1819
11 Correct 39 ms 23944 KB ans=YES N=1986
12 Correct 66 ms 24268 KB ans=YES N=2000
13 Correct 74 ms 24420 KB ans=YES N=1834
14 Correct 76 ms 24396 KB ans=YES N=1860
15 Correct 79 ms 24424 KB ans=YES N=1898
16 Correct 69 ms 24304 KB ans=YES N=1832
17 Correct 99 ms 24652 KB ans=YES N=1929
18 Correct 43 ms 24060 KB ans=YES N=1919
19 Correct 74 ms 24324 KB ans=YES N=1882
20 Correct 98 ms 24732 KB ans=YES N=1922
21 Correct 42 ms 24340 KB ans=YES N=1989
22 Correct 72 ms 24356 KB ans=YES N=1978
23 Correct 74 ms 24800 KB ans=YES N=1867
24 Correct 87 ms 34316 KB ans=NO N=66151
25 Correct 85 ms 34348 KB ans=NO N=64333
26 Correct 1182 ms 39008 KB ans=YES N=69316
27 Correct 1141 ms 38452 KB ans=YES N=66695
28 Correct 1241 ms 38836 KB ans=YES N=68436
29 Correct 1179 ms 39128 KB ans=YES N=70000
30 Correct 1238 ms 39100 KB ans=YES N=68501
31 Correct 1352 ms 39752 KB ans=YES N=70000
32 Correct 1412 ms 39652 KB ans=YES N=65009
33 Correct 2932 ms 48448 KB ans=YES N=67007
34 Execution timed out 3579 ms 52540 KB Time limit exceeded
35 Halted 0 ms 0 KB -