oj.uz

Submission #1096956

# Submission time Handle Problem Language Result Execution time Memory
1096956 2024-10-05T14:40:50 Z lmToT27 Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
 65 ms 5836 KB 
#include <bits/stdc++.h>
#define all(dataStructure) dataStructure.begin(),dataStructure.end()
#define ll long long

using namespace std;
namespace std {
        template <typename T, int D>
        struct _vector : public vector <_vector <T, D - 1>> {
                static_assert(D >= 1, "Dimension must be positive!");
                template <typename... Args>
                _vector(int n = 0, Args... args) : vector <_vector <T, D - 1>> (n, _vector <T, D - 1> (args...)) {}
        };
        // _vector <int, 3> a(n, m, k);: int a[n][m][k].
        // _vector <int, 3> a(n, m, k, x);: int a[n][m][k] initialized with x.
        template <typename T>
        struct _vector <T, 1> : public vector <T> {
                _vector(int n = 0, const T& val = T()) : vector <T> (n, val) {}
        };
}

const int MAX = 3e4 + 3;
const ll MOD[] = {1000000007, 998244353};

int n, m;
int b[MAX], p[MAX];
int dp[MAX];
set <int> f[MAX];

void Solve() {
        memset(dp, 0x0f, sizeof dp);
        cin >> n >> m;
        for (int i = 0; i < m; i++) {
                cin >> b[i] >> p[i];
                f[b[i]].insert(p[i]);
        }

        priority_queue <pair <int, int>> q;
        dp[b[0]] = 0;
        q.push({0, b[0]});
        while (q.size()) {
                auto [D, u] = q.top();
                q.pop();
                D = -D;
                if (D != dp[u]) continue;
                if (u == b[1]) return void(cout << D);
                for (auto p : f[u]) {
                        for (int v = u + p; v < n; v += p) {
                                if (dp[v] > D + (v - u) / p) {
                                        dp[v] = D + (v - u) / p;
                                        q.emplace(-dp[v], v);
                                }
                                if (f[v].count(p)) break;
                        }
                        for (int v = u - p; v >= 0; v -= p) {
                                if (dp[v] > D + (u - v) / p) {
                                        dp[v] = D + (u - v) / p;
                                        q.emplace(-dp[v], v);
                                }
                                if (f[v].count(p)) break;
                        }
                }
        }
        cout << -1;
}

int32_t main() {
        ios_base::sync_with_stdio(0);
        cin.tie(0);

        #define TASK "TASK"
        if (fopen(TASK".INP", "r")) {
                freopen(TASK".INP", "r", stdin);
                freopen(TASK".OUT", "w", stdout);
        }
        
        /* int TEST = 1; cin >> TEST; while (TEST--) */ Solve();

        cerr << "\nTime elapsed: " << 1.0 * clock() / CLOCKS_PER_SEC << "s\n";
        return 0;
}

Compilation message

skyscraper.cpp: In function 'int32_t main()':
skyscraper.cpp:72:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   72 |                 freopen(TASK".INP", "r", stdin);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
skyscraper.cpp:73:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   73 |                 freopen(TASK".OUT", "w", stdout);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1880 KB Output is correct
2 Correct 1 ms 1884 KB Output is correct
3 Correct 2 ms 1884 KB Output is correct
4 Correct 1 ms 1884 KB Output is correct
5 Correct 1 ms 1956 KB Output is correct
6 Correct 1 ms 1884 KB Output is correct
7 Correct 1 ms 1884 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1884 KB Output is correct
2 Correct 1 ms 1884 KB Output is correct
3 Correct 1 ms 1884 KB Output is correct
4 Correct 1 ms 1884 KB Output is correct
5 Correct 1 ms 1884 KB Output is correct
6 Correct 2 ms 1884 KB Output is correct
7 Correct 1 ms 1884 KB Output is correct
8 Correct 1 ms 1988 KB Output is correct
9 Correct 1 ms 1988 KB Output is correct
10 Correct 1 ms 1884 KB Output is correct
11 Correct 2 ms 1884 KB Output is correct
12 Correct 1 ms 1880 KB Output is correct
13 Correct 1 ms 1884 KB Output is correct
14 Correct 2 ms 1880 KB Output is correct
15 Correct 2 ms 1880 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1884 KB Output is correct
2 Correct 1 ms 1884 KB Output is correct
3 Correct 1 ms 1884 KB Output is correct
4 Correct 1 ms 1884 KB Output is correct
5 Correct 1 ms 1884 KB Output is correct
6 Correct 1 ms 2136 KB Output is correct
7 Correct 1 ms 1884 KB Output is correct
8 Correct 1 ms 1884 KB Output is correct
9 Correct 1 ms 1888 KB Output is correct
10 Correct 2 ms 1884 KB Output is correct
11 Correct 2 ms 1884 KB Output is correct
12 Correct 1 ms 1884 KB Output is correct
13 Correct 1 ms 1884 KB Output is correct
14 Correct 1 ms 2068 KB Output is correct
15 Correct 1 ms 1884 KB Output is correct
16 Correct 1 ms 1884 KB Output is correct
17 Correct 1 ms 1884 KB Output is correct
18 Correct 1 ms 1884 KB Output is correct
19 Correct 1 ms 1884 KB Output is correct
20 Correct 1 ms 1884 KB Output is correct
21 Correct 1 ms 1880 KB Output is correct
22 Correct 1 ms 1884 KB Output is correct
23 Correct 2 ms 1884 KB Output is correct
24 Correct 2 ms 2132 KB Output is correct
25 Correct 1 ms 1884 KB Output is correct
26 Correct 1 ms 1884 KB Output is correct
27 Correct 1 ms 1880 KB Output is correct
28 Correct 2 ms 1884 KB Output is correct
29 Correct 2 ms 2140 KB Output is correct
30 Correct 1 ms 1884 KB Output is correct
31 Correct 2 ms 1884 KB Output is correct
32 Correct 2 ms 1944 KB Output is correct
33 Correct 3 ms 2140 KB Output is correct
34 Correct 2 ms 2140 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1884 KB Output is correct
2 Correct 1 ms 1884 KB Output is correct
3 Correct 1 ms 1884 KB Output is correct
4 Correct 2 ms 1884 KB Output is correct
5 Correct 1 ms 1884 KB Output is correct
6 Correct 1 ms 1884 KB Output is correct
7 Correct 1 ms 1884 KB Output is correct
8 Correct 1 ms 1884 KB Output is correct
9 Correct 1 ms 1884 KB Output is correct
10 Correct 1 ms 1884 KB Output is correct
11 Correct 1 ms 1884 KB Output is correct
12 Correct 1 ms 1884 KB Output is correct
13 Correct 1 ms 1884 KB Output is correct
14 Correct 1 ms 1884 KB Output is correct
15 Correct 1 ms 1884 KB Output is correct
16 Correct 1 ms 1884 KB Output is correct
17 Correct 1 ms 1884 KB Output is correct
18 Correct 1 ms 1884 KB Output is correct
19 Correct 1 ms 1884 KB Output is correct
20 Correct 1 ms 1884 KB Output is correct
21 Correct 1 ms 1884 KB Output is correct
22 Correct 1 ms 1880 KB Output is correct
23 Correct 1 ms 1884 KB Output is correct
24 Correct 1 ms 1884 KB Output is correct
25 Correct 1 ms 1884 KB Output is correct
26 Correct 1 ms 1884 KB Output is correct
27 Correct 1 ms 1884 KB Output is correct
28 Correct 1 ms 1864 KB Output is correct
29 Correct 2 ms 2140 KB Output is correct
30 Correct 1 ms 1884 KB Output is correct
31 Correct 1 ms 2140 KB Output is correct
32 Correct 1 ms 1884 KB Output is correct
33 Correct 3 ms 2140 KB Output is correct
34 Correct 2 ms 2140 KB Output is correct
35 Correct 9 ms 3420 KB Output is correct
36 Correct 2 ms 2140 KB Output is correct
37 Correct 7 ms 3116 KB Output is correct
38 Correct 12 ms 3928 KB Output is correct
39 Correct 8 ms 3420 KB Output is correct
40 Correct 10 ms 3676 KB Output is correct
41 Correct 12 ms 3568 KB Output is correct
42 Correct 4 ms 2140 KB Output is correct
43 Correct 3 ms 2140 KB Output is correct
44 Correct 4 ms 2140 KB Output is correct
45 Correct 12 ms 3676 KB Output is correct
46 Correct 12 ms 3776 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1884 KB Output is correct
2 Correct 1 ms 1884 KB Output is correct
3 Correct 1 ms 1884 KB Output is correct
4 Correct 1 ms 1884 KB Output is correct
5 Correct 1 ms 1884 KB Output is correct
6 Correct 1 ms 1884 KB Output is correct
7 Correct 1 ms 1884 KB Output is correct
8 Correct 1 ms 1884 KB Output is correct
9 Correct 1 ms 1884 KB Output is correct
10 Correct 1 ms 1880 KB Output is correct
11 Correct 1 ms 1884 KB Output is correct
12 Correct 1 ms 1884 KB Output is correct
13 Correct 1 ms 1884 KB Output is correct
14 Correct 1 ms 1884 KB Output is correct
15 Correct 1 ms 2028 KB Output is correct
16 Correct 1 ms 1884 KB Output is correct
17 Correct 1 ms 1884 KB Output is correct
18 Correct 1 ms 1884 KB Output is correct
19 Correct 1 ms 1884 KB Output is correct
20 Correct 1 ms 1884 KB Output is correct
21 Correct 1 ms 1884 KB Output is correct
22 Correct 1 ms 1884 KB Output is correct
23 Correct 1 ms 1884 KB Output is correct
24 Correct 2 ms 1884 KB Output is correct
25 Correct 1 ms 1884 KB Output is correct
26 Correct 1 ms 1896 KB Output is correct
27 Correct 2 ms 1880 KB Output is correct
28 Correct 1 ms 1884 KB Output is correct
29 Correct 2 ms 2140 KB Output is correct
30 Correct 1 ms 1884 KB Output is correct
31 Correct 1 ms 2140 KB Output is correct
32 Correct 1 ms 1884 KB Output is correct
33 Correct 3 ms 2140 KB Output is correct
34 Correct 3 ms 2136 KB Output is correct
35 Correct 9 ms 3420 KB Output is correct
36 Correct 2 ms 2140 KB Output is correct
37 Correct 7 ms 3100 KB Output is correct
38 Correct 13 ms 3712 KB Output is correct
39 Correct 7 ms 3420 KB Output is correct
40 Correct 8 ms 3672 KB Output is correct
41 Correct 12 ms 3676 KB Output is correct
42 Correct 4 ms 2140 KB Output is correct
43 Correct 4 ms 2140 KB Output is correct
44 Correct 3 ms 2140 KB Output is correct
45 Correct 12 ms 3768 KB Output is correct
46 Correct 11 ms 3676 KB Output is correct
47 Correct 9 ms 3692 KB Output is correct
48 Correct 7 ms 3092 KB Output is correct
49 Correct 6 ms 2908 KB Output is correct
50 Correct 4 ms 2652 KB Output is correct
51 Correct 15 ms 4048 KB Output is correct
52 Correct 16 ms 4052 KB Output is correct
53 Correct 7 ms 3676 KB Output is correct
54 Correct 2 ms 2140 KB Output is correct
55 Correct 2 ms 2140 KB Output is correct
56 Correct 6 ms 3416 KB Output is correct
57 Correct 2 ms 2396 KB Output is correct
58 Correct 5 ms 2396 KB Output is correct
59 Correct 6 ms 2652 KB Output is correct
60 Correct 6 ms 2652 KB Output is correct
61 Correct 6 ms 2652 KB Output is correct
62 Correct 8 ms 3932 KB Output is correct
63 Correct 30 ms 4820 KB Output is correct
64 Correct 32 ms 4820 KB Output is correct
65 Correct 37 ms 4820 KB Output is correct
66 Correct 65 ms 5836 KB Output is correct
67 Correct 51 ms 5836 KB Output is correct