oj.uz

Submission #202509

# Submission time Handle Problem Language Result Execution time Memory
202509 2020-02-16T16:07:21 Z arnold518 Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
 644 ms 72036 KB 
#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
 
const int MAXN = 3e4;
const int INF = 1e9;

int N, M, S, E;
vector<int> A[MAXN+10];
vector<pii> adj[MAXN+10];
int dist[MAXN+10];

struct Queue
{
    int u, w;
    bool operator < (const Queue &p) const { return w>p.w; }
};
 
int main()
{
    int i, j, k;
 
    scanf("%d%d", &N, &M);
    for(i=1; i<=M; i++)
    {
        int b, p;
        scanf("%d%d", &b, &p);
        if(i==1) S=b;
        if(i==2) E=b;
        A[p].push_back(b);
    }

    for(i=1; i<=MAXN; i++)
    {
        if(A[i].empty()) continue;
        vector<vector<int>> V;
        vector<int> comp;
        V.resize(i);
        for(auto it : A[i]) V[it%i].push_back(it);
        for(auto it : A[i]) comp.push_back(it%i);

        sort(comp.begin(), comp.end());
        comp.erase(unique(comp.begin(), comp.end()), comp.end());

        for(auto it : comp)
        {
            sort(V[it].begin(), V[it].end());
            for(j=1; j<V[it].size(); j++)
            {
                int now=V[it][j], bef=V[it][j-1];
                for(k=bef+i; k<=now; k+=i) adj[bef].push_back({k, (k-bef)/i});
                for(k=now-i; k>=bef; k-=i) adj[now].push_back({k, (now-k)/i});
            }
            for(k=V[it].back()+i; k<N; k+=i) adj[V[it].back()].push_back({k, (k-V[it].back())/i});
            for(k=V[it][0]-i; k>=0; k-=i) adj[V[it][0]].push_back({k, (V[it][0]-k)/i});
        }
    }

    priority_queue<Queue> PQ;
    for(i=0; i<N; i++) dist[i]=INF;
    PQ.push({S, 0}); dist[S]=0;

    while(!PQ.empty())
    {
        Queue now=PQ.top(); PQ.pop();
        if(dist[now.u]<now.w) continue;
        for(auto nxt : adj[now.u]) if(dist[nxt.first]>now.w+nxt.second) PQ.push({nxt.first, now.w+nxt.second}), dist[nxt.first]=now.w+nxt.second;
    }
    if(dist[E]==INF) dist[E]=-1;
    printf("%d\n", dist[E]);
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:51:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for(j=1; j<V[it].size(); j++)
                      ~^~~~~~~~~~~~~
skyscraper.cpp:26:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &N, &M);
     ~~~~~^~~~~~~~~~~~~~~~
skyscraper.cpp:30:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d", &b, &p);
         ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 1656 KB Output is correct
2 Correct 5 ms 1656 KB Output is correct
3 Correct 5 ms 1784 KB Output is correct
4 Correct 5 ms 1656 KB Output is correct
5 Correct 5 ms 1656 KB Output is correct
6 Correct 6 ms 1784 KB Output is correct
7 Correct 6 ms 1656 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1656 KB Output is correct
2 Correct 6 ms 1656 KB Output is correct
3 Correct 5 ms 1656 KB Output is correct
4 Correct 6 ms 1656 KB Output is correct
5 Correct 5 ms 1656 KB Output is correct
6 Correct 6 ms 1656 KB Output is correct
7 Correct 5 ms 1656 KB Output is correct
8 Correct 5 ms 1784 KB Output is correct
9 Correct 5 ms 1656 KB Output is correct
10 Correct 6 ms 1784 KB Output is correct
11 Correct 6 ms 1784 KB Output is correct
12 Correct 6 ms 1784 KB Output is correct
13 Correct 6 ms 1784 KB Output is correct
14 Correct 7 ms 1912 KB Output is correct
15 Correct 8 ms 1784 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1660 KB Output is correct
2 Correct 6 ms 1784 KB Output is correct
3 Correct 5 ms 1784 KB Output is correct
4 Correct 6 ms 1656 KB Output is correct
5 Correct 6 ms 1656 KB Output is correct
6 Correct 5 ms 1656 KB Output is correct
7 Correct 6 ms 1656 KB Output is correct
8 Correct 6 ms 1784 KB Output is correct
9 Correct 5 ms 1656 KB Output is correct
10 Correct 6 ms 1784 KB Output is correct
11 Correct 7 ms 1784 KB Output is correct
12 Correct 7 ms 1784 KB Output is correct
13 Correct 6 ms 1784 KB Output is correct
14 Correct 7 ms 1784 KB Output is correct
15 Correct 6 ms 1784 KB Output is correct
16 Correct 6 ms 1784 KB Output is correct
17 Correct 7 ms 1912 KB Output is correct
18 Correct 9 ms 1912 KB Output is correct
19 Correct 7 ms 1784 KB Output is correct
20 Correct 7 ms 1756 KB Output is correct
21 Correct 9 ms 1912 KB Output is correct
22 Correct 8 ms 1912 KB Output is correct
23 Correct 8 ms 1912 KB Output is correct
24 Correct 11 ms 2040 KB Output is correct
25 Correct 10 ms 1912 KB Output is correct
26 Correct 7 ms 1912 KB Output is correct
27 Correct 7 ms 1912 KB Output is correct
28 Correct 7 ms 2040 KB Output is correct
29 Correct 8 ms 2552 KB Output is correct
30 Correct 6 ms 2040 KB Output is correct
31 Correct 7 ms 2168 KB Output is correct
32 Correct 7 ms 2040 KB Output is correct
33 Correct 11 ms 3320 KB Output is correct
34 Correct 11 ms 3320 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 1656 KB Output is correct
2 Correct 6 ms 1656 KB Output is correct
3 Correct 8 ms 1656 KB Output is correct
4 Correct 6 ms 1656 KB Output is correct
5 Correct 6 ms 1656 KB Output is correct
6 Correct 5 ms 1656 KB Output is correct
7 Correct 6 ms 1784 KB Output is correct
8 Correct 6 ms 1656 KB Output is correct
9 Correct 6 ms 1784 KB Output is correct
10 Correct 6 ms 1784 KB Output is correct
11 Correct 6 ms 1784 KB Output is correct
12 Correct 6 ms 1784 KB Output is correct
13 Correct 6 ms 1784 KB Output is correct
14 Correct 7 ms 1784 KB Output is correct
15 Correct 7 ms 1784 KB Output is correct
16 Correct 6 ms 1784 KB Output is correct
17 Correct 7 ms 1912 KB Output is correct
18 Correct 8 ms 1912 KB Output is correct
19 Correct 7 ms 1784 KB Output is correct
20 Correct 6 ms 1784 KB Output is correct
21 Correct 8 ms 1784 KB Output is correct
22 Correct 8 ms 1912 KB Output is correct
23 Correct 8 ms 1912 KB Output is correct
24 Correct 11 ms 1916 KB Output is correct
25 Correct 12 ms 1912 KB Output is correct
26 Correct 6 ms 1912 KB Output is correct
27 Correct 7 ms 1912 KB Output is correct
28 Correct 7 ms 2040 KB Output is correct
29 Correct 9 ms 2552 KB Output is correct
30 Correct 7 ms 2040 KB Output is correct
31 Correct 7 ms 2168 KB Output is correct
32 Correct 7 ms 2040 KB Output is correct
33 Correct 11 ms 3320 KB Output is correct
34 Correct 12 ms 3320 KB Output is correct
35 Correct 23 ms 2940 KB Output is correct
36 Correct 13 ms 2040 KB Output is correct
37 Correct 20 ms 4088 KB Output is correct
38 Correct 32 ms 3832 KB Output is correct
39 Correct 32 ms 3960 KB Output is correct
40 Correct 27 ms 3832 KB Output is correct
41 Correct 29 ms 3832 KB Output is correct
42 Correct 13 ms 2168 KB Output is correct
43 Correct 14 ms 2168 KB Output is correct
44 Correct 13 ms 2168 KB Output is correct
45 Correct 28 ms 6648 KB Output is correct
46 Correct 28 ms 6536 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 1656 KB Output is correct
2 Correct 5 ms 1656 KB Output is correct
3 Correct 5 ms 1656 KB Output is correct
4 Correct 6 ms 1656 KB Output is correct
5 Correct 5 ms 1656 KB Output is correct
6 Correct 6 ms 1784 KB Output is correct
7 Correct 6 ms 1656 KB Output is correct
8 Correct 6 ms 1656 KB Output is correct
9 Correct 6 ms 1656 KB Output is correct
10 Correct 6 ms 1784 KB Output is correct
11 Correct 7 ms 1912 KB Output is correct
12 Correct 6 ms 1784 KB Output is correct
13 Correct 6 ms 1784 KB Output is correct
14 Correct 6 ms 1784 KB Output is correct
15 Correct 6 ms 1784 KB Output is correct
16 Correct 7 ms 1784 KB Output is correct
17 Correct 7 ms 1912 KB Output is correct
18 Correct 8 ms 1912 KB Output is correct
19 Correct 7 ms 1784 KB Output is correct
20 Correct 7 ms 1784 KB Output is correct
21 Correct 8 ms 1784 KB Output is correct
22 Correct 9 ms 1912 KB Output is correct
23 Correct 8 ms 1912 KB Output is correct
24 Correct 11 ms 1912 KB Output is correct
25 Correct 11 ms 1912 KB Output is correct
26 Correct 7 ms 1912 KB Output is correct
27 Correct 8 ms 1912 KB Output is correct
28 Correct 10 ms 2040 KB Output is correct
29 Correct 9 ms 2552 KB Output is correct
30 Correct 7 ms 2040 KB Output is correct
31 Correct 7 ms 2168 KB Output is correct
32 Correct 7 ms 2040 KB Output is correct
33 Correct 11 ms 3452 KB Output is correct
34 Correct 11 ms 3320 KB Output is correct
35 Correct 24 ms 2936 KB Output is correct
36 Correct 13 ms 2040 KB Output is correct
37 Correct 20 ms 3960 KB Output is correct
38 Correct 28 ms 3832 KB Output is correct
39 Correct 28 ms 3832 KB Output is correct
40 Correct 27 ms 3832 KB Output is correct
41 Correct 28 ms 3832 KB Output is correct
42 Correct 15 ms 2168 KB Output is correct
43 Correct 14 ms 2168 KB Output is correct
44 Correct 14 ms 2168 KB Output is correct
45 Correct 28 ms 6648 KB Output is correct
46 Correct 27 ms 6520 KB Output is correct
47 Correct 50 ms 11124 KB Output is correct
48 Correct 390 ms 5716 KB Output is correct
49 Correct 499 ms 5024 KB Output is correct
50 Correct 387 ms 4808 KB Output is correct
51 Correct 644 ms 7380 KB Output is correct
52 Correct 642 ms 7448 KB Output is correct
53 Correct 304 ms 3748 KB Output is correct
54 Correct 8 ms 2296 KB Output is correct
55 Correct 9 ms 2804 KB Output is correct
56 Correct 19 ms 3064 KB Output is correct
57 Correct 39 ms 11064 KB Output is correct
58 Correct 17 ms 3072 KB Output is correct
59 Correct 18 ms 3340 KB Output is correct
60 Correct 20 ms 3980 KB Output is correct
61 Correct 116 ms 4264 KB Output is correct
62 Correct 62 ms 8236 KB Output is correct
63 Correct 79 ms 24576 KB Output is correct
64 Correct 83 ms 32756 KB Output is correct
65 Correct 114 ms 43760 KB Output is correct
66 Correct 209 ms 71912 KB Output is correct
67 Correct 214 ms 72036 KB Output is correct