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Submission #459526

# Submission time Handle Problem Language Result Execution time Memory
459526 2021-08-08T15:10:27 Z azberjibiou Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
 753 ms 149736 KB 
#include <bits/stdc++.h>
#define gibon ios::sync_with_stdio(false); cin.tie(0);
#define bp __builtin_popcount
#define fir first
#define sec second
#define pii pair<int, int>
#define pll pair<ll, ll>
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
typedef long long ll;
using namespace std;
int dx[4]={0, 1, 0, -1}, dy[4]={1, 0, -1 , 0};
const int mxN=30010;
const int mxM=7300000;
const int mxK=100001;
const int MOD=1000000007;
const ll INF=9223372036854775807;
int N, M;
vector <pii> BP;
int l[mxM], r[mxM], in[mxM];
vector <int> out[mxN];
int idx;
int X, Y;
int lst[2*mxM], lc, rc;
int dis[mxM];
bool Chk[mxM];
bool cmp1(pii a, pii b)
{
    if(a.sec!=b.sec) return a.sec<b.sec;
    if(a.fir%a.sec!=b.fir%b.sec)    return a.fir%a.sec<b.fir%b.sec;
    return a.fir<b.fir;
}
void zero_one_bfs()
{
    int cnt=0;
    while(lc!=rc)
    {
        //assert(cnt<=mxM/3);
        int now=lst[lc];
        lc++;
        cnt++;
        Chk[now]=true;
        if(now<=N)
        {
            for(int nxt : out[now])
            {
                if(Chk[nxt] && dis[nxt]<=dis[now])  continue;
                dis[nxt]=dis[now];
                lst[--lc]=nxt;
                Chk[nxt]=true;
            }
        }
        else
        {
            if(l[now]!=-1)
            {
                if(!Chk[l[now]] && dis[l[now]]>dis[now]+1)
                {
                    dis[l[now]]=dis[now]+1;
                    lst[rc++]=l[now];
                    //lst.push_back(l[now]);
                }
            }
            if(r[now]!=-1)
            {
                if(!Chk[r[now]] && dis[r[now]]>dis[now]+1)
                {
                    dis[r[now]]=dis[now]+1;
                    lst[rc++]=r[now];
                    //lst.push_back(r[now]);
                }
            }
            if(!Chk[in[now]] && dis[in[now]]>dis[now])
            {
                dis[in[now]]=dis[now];
                lst[--lc]=in[now];
                Chk[in[now]]=true;
                //lst.push_front(in[now]);
            }
        }
    }
}
int main()
{
    gibon
    cin >> N >> M;
    idx=N+1;
    BP.resize(M);
    for(int i=0;i<M;i++)
    {
        cin >> BP[i].fir >> BP[i].sec;
        BP[i].fir++;
        if(i==0)    X=BP[i].fir;
        if(i==1)    Y=BP[i].fir;
    }
    sort(BP.begin(), BP.end(), cmp1);
    int cur=0;
    while(cur<M)
    {
        int ncur=cur;
        bool jog=false;
        for(int j=(BP[ncur].fir-1)%BP[ncur].sec+1;j<=N;j+=BP[ncur].sec)
        {
            if(cur<M && BP[cur].fir==j && BP[cur].sec==BP[ncur].sec)
            {
                out[j].push_back(idx);
                while(cur<M && BP[cur].fir==j && BP[cur].sec==BP[ncur].sec)   cur++;
            }
            in[idx]=j;
            if(!jog)    jog=true;
            else
            {
                l[idx]=idx-1;
                r[idx-1]=idx;
            }
            idx++;
        }
    }
    for(int i=0;i<idx;i++)
    {
        dis[i]=mxM;
    }
    dis[X]=0;
    lst[mxM]=X;
    lc=mxM, rc=mxM+1;
    //assert(idx<=2*mxM/3);
    zero_one_bfs();
    if(dis[Y]==mxM) cout << -1;
    else    cout << dis[Y];
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 972 KB Output is correct
9 Correct 1 ms 972 KB Output is correct
10 Correct 1 ms 1100 KB Output is correct
11 Correct 2 ms 1100 KB Output is correct
12 Correct 1 ms 972 KB Output is correct
13 Correct 2 ms 972 KB Output is correct
14 Correct 2 ms 1100 KB Output is correct
15 Correct 2 ms 1100 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 972 KB Output is correct
9 Correct 1 ms 972 KB Output is correct
10 Correct 1 ms 1100 KB Output is correct
11 Correct 2 ms 1100 KB Output is correct
12 Correct 2 ms 972 KB Output is correct
13 Correct 2 ms 972 KB Output is correct
14 Correct 2 ms 1100 KB Output is correct
15 Correct 2 ms 1100 KB Output is correct
16 Correct 1 ms 1100 KB Output is correct
17 Correct 2 ms 1356 KB Output is correct
18 Correct 1 ms 1228 KB Output is correct
19 Correct 1 ms 1100 KB Output is correct
20 Correct 2 ms 1100 KB Output is correct
21 Correct 1 ms 1100 KB Output is correct
22 Correct 1 ms 1100 KB Output is correct
23 Correct 2 ms 1228 KB Output is correct
24 Correct 2 ms 1356 KB Output is correct
25 Correct 2 ms 1228 KB Output is correct
26 Correct 2 ms 1228 KB Output is correct
27 Correct 2 ms 1228 KB Output is correct
28 Correct 2 ms 1612 KB Output is correct
29 Correct 3 ms 2252 KB Output is correct
30 Correct 2 ms 1356 KB Output is correct
31 Correct 2 ms 1740 KB Output is correct
32 Correct 2 ms 1496 KB Output is correct
33 Correct 6 ms 3532 KB Output is correct
34 Correct 6 ms 3532 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 972 KB Output is correct
9 Correct 1 ms 972 KB Output is correct
10 Correct 1 ms 1100 KB Output is correct
11 Correct 2 ms 1100 KB Output is correct
12 Correct 1 ms 972 KB Output is correct
13 Correct 1 ms 972 KB Output is correct
14 Correct 2 ms 1100 KB Output is correct
15 Correct 2 ms 1100 KB Output is correct
16 Correct 1 ms 1100 KB Output is correct
17 Correct 2 ms 1356 KB Output is correct
18 Correct 1 ms 1228 KB Output is correct
19 Correct 1 ms 1100 KB Output is correct
20 Correct 2 ms 1100 KB Output is correct
21 Correct 1 ms 1100 KB Output is correct
22 Correct 2 ms 1100 KB Output is correct
23 Correct 1 ms 1228 KB Output is correct
24 Correct 2 ms 1356 KB Output is correct
25 Correct 2 ms 1228 KB Output is correct
26 Correct 2 ms 1228 KB Output is correct
27 Correct 2 ms 1228 KB Output is correct
28 Correct 2 ms 1612 KB Output is correct
29 Correct 3 ms 2252 KB Output is correct
30 Correct 1 ms 1356 KB Output is correct
31 Correct 2 ms 1740 KB Output is correct
32 Correct 2 ms 1484 KB Output is correct
33 Correct 6 ms 3532 KB Output is correct
34 Correct 6 ms 3528 KB Output is correct
35 Correct 16 ms 3424 KB Output is correct
36 Correct 3 ms 1484 KB Output is correct
37 Correct 15 ms 4900 KB Output is correct
38 Correct 18 ms 4684 KB Output is correct
39 Correct 19 ms 4740 KB Output is correct
40 Correct 19 ms 4688 KB Output is correct
41 Correct 18 ms 4676 KB Output is correct
42 Correct 13 ms 1408 KB Output is correct
43 Correct 11 ms 1408 KB Output is correct
44 Correct 12 ms 1356 KB Output is correct
45 Correct 33 ms 11188 KB Output is correct
46 Correct 34 ms 11160 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 972 KB Output is correct
9 Correct 1 ms 972 KB Output is correct
10 Correct 1 ms 1100 KB Output is correct
11 Correct 2 ms 1100 KB Output is correct
12 Correct 1 ms 972 KB Output is correct
13 Correct 1 ms 972 KB Output is correct
14 Correct 2 ms 1100 KB Output is correct
15 Correct 2 ms 1100 KB Output is correct
16 Correct 1 ms 1100 KB Output is correct
17 Correct 2 ms 1356 KB Output is correct
18 Correct 1 ms 1228 KB Output is correct
19 Correct 1 ms 1100 KB Output is correct
20 Correct 2 ms 1100 KB Output is correct
21 Correct 2 ms 1100 KB Output is correct
22 Correct 1 ms 1100 KB Output is correct
23 Correct 2 ms 1228 KB Output is correct
24 Correct 2 ms 1356 KB Output is correct
25 Correct 2 ms 1228 KB Output is correct
26 Correct 2 ms 1228 KB Output is correct
27 Correct 2 ms 1228 KB Output is correct
28 Correct 3 ms 1612 KB Output is correct
29 Correct 3 ms 2252 KB Output is correct
30 Correct 1 ms 1356 KB Output is correct
31 Correct 2 ms 1740 KB Output is correct
32 Correct 2 ms 1484 KB Output is correct
33 Correct 6 ms 3532 KB Output is correct
34 Correct 6 ms 3532 KB Output is correct
35 Correct 14 ms 3432 KB Output is correct
36 Correct 3 ms 1484 KB Output is correct
37 Correct 16 ms 4816 KB Output is correct
38 Correct 18 ms 4720 KB Output is correct
39 Correct 19 ms 4744 KB Output is correct
40 Correct 19 ms 4636 KB Output is correct
41 Correct 19 ms 4740 KB Output is correct
42 Correct 12 ms 1484 KB Output is correct
43 Correct 11 ms 1356 KB Output is correct
44 Correct 12 ms 1412 KB Output is correct
45 Correct 33 ms 11132 KB Output is correct
46 Correct 33 ms 11164 KB Output is correct
47 Correct 55 ms 16636 KB Output is correct
48 Correct 14 ms 5460 KB Output is correct
49 Correct 12 ms 4044 KB Output is correct
50 Correct 11 ms 3840 KB Output is correct
51 Correct 26 ms 8424 KB Output is correct
52 Correct 27 ms 8964 KB Output is correct
53 Correct 17 ms 3652 KB Output is correct
54 Correct 1 ms 1740 KB Output is correct
55 Correct 2 ms 2124 KB Output is correct
56 Correct 20 ms 3048 KB Output is correct
57 Correct 19 ms 10152 KB Output is correct
58 Correct 12 ms 2764 KB Output is correct
59 Correct 14 ms 3404 KB Output is correct
60 Correct 16 ms 3964 KB Output is correct
61 Correct 15 ms 3588 KB Output is correct
62 Correct 26 ms 12196 KB Output is correct
63 Correct 177 ms 48388 KB Output is correct
64 Correct 178 ms 58948 KB Output is correct
65 Correct 426 ms 84332 KB Output is correct
66 Correct 753 ms 149600 KB Output is correct
67 Correct 749 ms 149736 KB Output is correct