oj.uz

Submission #722407

# Submission time Handle Problem Language Result Execution time Memory
722407 2023-04-11T22:12:19 Z n0sk1ll Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
 48 ms 14160 KB 
#include <bits/stdc++.h>

#define FAST ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);cerr.tie(0)
#define mp make_pair
#define xx first
#define yy second
#define pb push_back
#define pf push_front
#define popb pop_back
#define popf pop_front
#define all(x) x.begin(),x.end()
#define ff(i,a,b) for (int i = a; i < b; i++)
#define fff(i,a,b) for (int i = a; i <= b; i++)
#define bff(i,a,b) for (int i = b-1; i >= a; i--)
#define bfff(i,a,b) for (int i = b; i >= a; i--)

using namespace std;
long double typedef ld;
unsigned int typedef ui;
long long int typedef li;
pair<int,int> typedef pii;
pair<li,li> typedef pli;
pair<ld,ld> typedef pld;
vector<vector<int>> typedef graph;
unsigned long long int typedef ull;
//const int mod = 998244353;
//const int mod = 1000000007;







//Note to self: Check for overflow

bool vis[30003];
set<int> psi[30003];

vector<pii> g[30003];

int main()
{
    FAST;

    int n,m; cin>>n>>m;
    set<pii> doges;

    int s,t;
    ff(i,0,m)
    {
        int b,p; cin>>b>>p;
        doges.insert({b,p});
        if (i==0) s=b;
        if (i==1) t=b;
    }

    for (auto [b,p] : doges) psi[b].insert(-p);

    vector<bool> tempvis(n,0);

    ff(i,0,n)
    {
        for (auto __jmp : psi[i])
        {
            int jmp=-__jmp;
            int tez=1;
            int tit=i;
            while (true)
            {
                int got=tit+jmp;
                if (got>=n) break;
                if (!tempvis[got] && !psi[got].empty()) g[i].pb({got,tez}),tempvis[got]=true;
                tit=got,tez++;
                if (psi[tit].count(__jmp)) break;
            }

            tez=1;
            tit=i;
            while (true)
            {
                int got=tit-jmp;
                if (got<0) break;
                if (!tempvis[got] && !psi[got].empty()) g[i].pb({got,tez}),tempvis[got]=true;
                tit=got,tez++;
                if (psi[tit].count(__jmp)) break;
            }
        }

        for (auto sta : g[i]) tempvis[sta.xx]=0;
    }

    priority_queue<pii,vector<pii>,greater<pii>> pq;
    pq.push({0,s});

    while (!pq.empty())
    {
        auto [d,p]=pq.top(); pq.pop();
        if (vis[p]) continue; vis[p]=1;
        if (p==t) return cout<<d,0;

        for (auto [it,w] : g[p]) if (!vis[it]) pq.push({w+d,it});
    }

    cout<<-1;
}

//Note to self: Check for overflow

/*

5 3
0 2
1 1
4 1

*/

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:58:15: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   58 |     for (auto [b,p] : doges) psi[b].insert(-p);
      |               ^
skyscraper.cpp:98:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   98 |         auto [d,p]=pq.top(); pq.pop();
      |              ^
skyscraper.cpp:99:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   99 |         if (vis[p]) continue; vis[p]=1;
      |         ^~
skyscraper.cpp:99:31: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   99 |         if (vis[p]) continue; vis[p]=1;
      |                               ^~~
skyscraper.cpp:102:19: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
  102 |         for (auto [it,w] : g[p]) if (!vis[it]) pq.push({w+d,it});
      |                   ^
skyscraper.cpp:100:9: warning: 't' may be used uninitialized in this function [-Wmaybe-uninitialized]
  100 |         if (p==t) return cout<<d,0;
      |         ^~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2388 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 1 ms 2388 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2388 KB Output is correct
2 Correct 1 ms 2388 KB Output is correct
3 Correct 2 ms 2388 KB Output is correct
4 Correct 2 ms 2388 KB Output is correct
5 Correct 2 ms 2388 KB Output is correct
6 Correct 2 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 2 ms 2388 KB Output is correct
11 Correct 2 ms 2644 KB Output is correct
12 Correct 1 ms 2388 KB Output is correct
13 Correct 1 ms 2388 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 2 ms 2644 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2388 KB Output is correct
2 Correct 1 ms 2388 KB Output is correct
3 Correct 1 ms 2388 KB Output is correct
4 Correct 2 ms 2388 KB Output is correct
5 Correct 2 ms 2388 KB Output is correct
6 Correct 2 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 1 ms 2388 KB Output is correct
10 Correct 1 ms 2388 KB Output is correct
11 Correct 2 ms 2644 KB Output is correct
12 Correct 2 ms 2388 KB Output is correct
13 Correct 2 ms 2388 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 3 ms 2644 KB Output is correct
16 Correct 2 ms 2516 KB Output is correct
17 Correct 3 ms 2772 KB Output is correct
18 Correct 2 ms 2516 KB Output is correct
19 Correct 3 ms 2388 KB Output is correct
20 Correct 3 ms 2644 KB Output is correct
21 Correct 2 ms 2560 KB Output is correct
22 Correct 2 ms 2516 KB Output is correct
23 Correct 2 ms 2516 KB Output is correct
24 Correct 3 ms 2644 KB Output is correct
25 Correct 2 ms 2644 KB Output is correct
26 Correct 2 ms 2388 KB Output is correct
27 Correct 2 ms 2388 KB Output is correct
28 Correct 3 ms 2772 KB Output is correct
29 Correct 2 ms 2516 KB Output is correct
30 Correct 2 ms 2388 KB Output is correct
31 Correct 2 ms 2388 KB Output is correct
32 Correct 2 ms 2388 KB Output is correct
33 Correct 3 ms 2644 KB Output is correct
34 Correct 4 ms 2652 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2388 KB Output is correct
2 Correct 2 ms 2388 KB Output is correct
3 Correct 2 ms 2388 KB Output is correct
4 Correct 2 ms 2388 KB Output is correct
5 Correct 2 ms 2388 KB Output is correct
6 Correct 2 ms 2400 KB Output is correct
7 Correct 2 ms 2388 KB Output is correct
8 Correct 1 ms 2388 KB Output is correct
9 Correct 2 ms 2388 KB Output is correct
10 Correct 1 ms 2388 KB Output is correct
11 Correct 3 ms 2516 KB Output is correct
12 Correct 2 ms 2388 KB Output is correct
13 Correct 3 ms 2388 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 3 ms 2644 KB Output is correct
16 Correct 2 ms 2516 KB Output is correct
17 Correct 3 ms 2772 KB Output is correct
18 Correct 3 ms 2516 KB Output is correct
19 Correct 2 ms 2388 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 2 ms 2516 KB Output is correct
22 Correct 1 ms 2516 KB Output is correct
23 Correct 2 ms 2620 KB Output is correct
24 Correct 3 ms 2644 KB Output is correct
25 Correct 3 ms 2644 KB Output is correct
26 Correct 2 ms 2388 KB Output is correct
27 Correct 2 ms 2388 KB Output is correct
28 Correct 3 ms 2772 KB Output is correct
29 Correct 2 ms 2516 KB Output is correct
30 Correct 2 ms 2388 KB Output is correct
31 Correct 2 ms 2388 KB Output is correct
32 Correct 3 ms 2388 KB Output is correct
33 Correct 3 ms 2644 KB Output is correct
34 Correct 3 ms 2644 KB Output is correct
35 Correct 23 ms 6352 KB Output is correct
36 Correct 4 ms 3028 KB Output is correct
37 Correct 25 ms 7280 KB Output is correct
38 Correct 26 ms 7412 KB Output is correct
39 Correct 26 ms 6884 KB Output is correct
40 Correct 30 ms 6996 KB Output is correct
41 Correct 33 ms 7116 KB Output is correct
42 Correct 8 ms 2388 KB Output is correct
43 Correct 6 ms 2388 KB Output is correct
44 Correct 9 ms 2692 KB Output is correct
45 Correct 21 ms 5588 KB Output is correct
46 Correct 20 ms 5588 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2388 KB Output is correct
2 Correct 1 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 2 ms 2388 KB Output is correct
7 Correct 2 ms 2388 KB Output is correct
8 Correct 1 ms 2388 KB Output is correct
9 Correct 2 ms 2388 KB Output is correct
10 Correct 2 ms 2388 KB Output is correct
11 Correct 3 ms 2644 KB Output is correct
12 Correct 2 ms 2388 KB Output is correct
13 Correct 1 ms 2388 KB Output is correct
14 Correct 3 ms 2644 KB Output is correct
15 Correct 2 ms 2656 KB Output is correct
16 Correct 2 ms 2516 KB Output is correct
17 Correct 3 ms 2772 KB Output is correct
18 Correct 2 ms 2516 KB Output is correct
19 Correct 2 ms 2388 KB Output is correct
20 Correct 3 ms 2644 KB Output is correct
21 Correct 2 ms 2516 KB Output is correct
22 Correct 2 ms 2516 KB Output is correct
23 Correct 2 ms 2516 KB Output is correct
24 Correct 4 ms 2644 KB Output is correct
25 Correct 3 ms 2644 KB Output is correct
26 Correct 2 ms 2388 KB Output is correct
27 Correct 2 ms 2388 KB Output is correct
28 Correct 3 ms 2772 KB Output is correct
29 Correct 2 ms 2516 KB Output is correct
30 Correct 1 ms 2388 KB Output is correct
31 Correct 1 ms 2388 KB Output is correct
32 Correct 2 ms 2388 KB Output is correct
33 Correct 3 ms 2644 KB Output is correct
34 Correct 3 ms 2644 KB Output is correct
35 Correct 26 ms 6352 KB Output is correct
36 Correct 4 ms 2996 KB Output is correct
37 Correct 25 ms 7304 KB Output is correct
38 Correct 30 ms 7524 KB Output is correct
39 Correct 29 ms 6792 KB Output is correct
40 Correct 25 ms 6892 KB Output is correct
41 Correct 26 ms 6996 KB Output is correct
42 Correct 6 ms 2440 KB Output is correct
43 Correct 6 ms 2388 KB Output is correct
44 Correct 6 ms 2644 KB Output is correct
45 Correct 21 ms 5652 KB Output is correct
46 Correct 21 ms 5584 KB Output is correct
47 Correct 46 ms 14160 KB Output is correct
48 Correct 19 ms 6024 KB Output is correct
49 Correct 19 ms 5332 KB Output is correct
50 Correct 12 ms 4480 KB Output is correct
51 Correct 34 ms 8540 KB Output is correct
52 Correct 45 ms 8884 KB Output is correct
53 Correct 30 ms 6004 KB Output is correct
54 Correct 2 ms 2388 KB Output is correct
55 Correct 2 ms 2388 KB Output is correct
56 Correct 19 ms 6336 KB Output is correct
57 Correct 7 ms 3268 KB Output is correct
58 Correct 5 ms 2516 KB Output is correct
59 Correct 6 ms 2572 KB Output is correct
60 Correct 7 ms 2692 KB Output is correct
61 Correct 7 ms 3028 KB Output is correct
62 Correct 37 ms 10632 KB Output is correct
63 Correct 38 ms 5628 KB Output is correct
64 Correct 32 ms 5624 KB Output is correct
65 Correct 35 ms 5668 KB Output is correct
66 Correct 48 ms 5856 KB Output is correct
67 Correct 43 ms 5876 KB Output is correct