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Submission #459522

# Submission time Handle Problem Language Result Execution time Memory
459522 2021-08-08T15:03:04 Z azberjibiou Jakarta Skyscrapers (APIO15_skyscraper) C++17
57 / 100
 46 ms 15196 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;
unsigned short 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++;
        if(Chk[now])    continue;
        Chk[now]=true;
        if(now<=N)
        {
            for(int nxt : out[now])
            {
                if(dis[nxt]<=dis[now])  continue;
                dis[nxt]=dis[now];
                lst[--lc]=nxt;
            }
        }
        else
        {
            if(l[now]!=-1)
            {
                if(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(dis[r[now]]>dis[now]+1)
                {
                    dis[r[now]]=dis[now]+1;
                    lst[rc++]=r[now];
                    //lst.push_back(r[now]);
                }
            }
            if(dis[in[now]]>dis[now])
            {
                dis[in[now]]=dis[now];
                lst[--lc]=in[now];
                //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]=65535;
    }
    dis[X]=0;
    lst[mxM]=X;
    lc=mxM, rc=mxM+1;
    //assert(idx<=2*mxM/3);
    zero_one_bfs();
    if(dis[Y]==65535) 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 2 ms 972 KB Output is correct
13 Correct 1 ms 1100 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 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 1100 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 1100 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 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 1100 KB Output is correct
28 Correct 2 ms 1484 KB Output is correct
29 Correct 3 ms 2124 KB Output is correct
30 Correct 1 ms 1356 KB Output is correct
31 Correct 2 ms 1612 KB Output is correct
32 Correct 2 ms 1484 KB Output is correct
33 Correct 6 ms 3252 KB Output is correct
34 Correct 6 ms 3276 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 1100 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 1100 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 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 1484 KB Output is correct
29 Correct 3 ms 2124 KB Output is correct
30 Correct 1 ms 1356 KB Output is correct
31 Correct 2 ms 1612 KB Output is correct
32 Correct 2 ms 1484 KB Output is correct
33 Correct 6 ms 3404 KB Output is correct
34 Correct 5 ms 3276 KB Output is correct
35 Correct 14 ms 3148 KB Output is correct
36 Correct 3 ms 1356 KB Output is correct
37 Correct 15 ms 4428 KB Output is correct
38 Correct 19 ms 4384 KB Output is correct
39 Correct 19 ms 4352 KB Output is correct
40 Correct 18 ms 4352 KB Output is correct
41 Correct 18 ms 4356 KB Output is correct
42 Correct 12 ms 1356 KB Output is correct
43 Correct 11 ms 1356 KB Output is correct
44 Correct 12 ms 1356 KB Output is correct
45 Correct 30 ms 10236 KB Output is correct
46 Correct 33 ms 10196 KB Output is correct

Subtask #5
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 1100 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 1212 KB Output is correct
27 Correct 2 ms 1228 KB Output is correct
28 Correct 2 ms 1484 KB Output is correct
29 Correct 3 ms 2124 KB Output is correct
30 Correct 1 ms 1356 KB Output is correct
31 Correct 2 ms 1612 KB Output is correct
32 Correct 2 ms 1484 KB Output is correct
33 Correct 6 ms 3276 KB Output is correct
34 Correct 5 ms 3276 KB Output is correct
35 Correct 14 ms 3168 KB Output is correct
36 Correct 3 ms 1356 KB Output is correct
37 Correct 15 ms 4428 KB Output is correct
38 Correct 19 ms 4312 KB Output is correct
39 Correct 19 ms 4348 KB Output is correct
40 Correct 19 ms 4320 KB Output is correct
41 Correct 18 ms 4348 KB Output is correct
42 Correct 13 ms 1356 KB Output is correct
43 Correct 11 ms 1408 KB Output is correct
44 Correct 12 ms 1408 KB Output is correct
45 Correct 32 ms 10316 KB Output is correct
46 Correct 31 ms 10264 KB Output is correct
47 Correct 46 ms 15196 KB Output is correct
48 Correct 12 ms 4932 KB Output is correct
49 Correct 12 ms 3636 KB Output is correct
50 Correct 9 ms 3580 KB Output is correct
51 Correct 27 ms 7744 KB Output is correct
52 Correct 28 ms 8264 KB Output is correct
53 Correct 20 ms 3532 KB Output is correct
54 Correct 2 ms 1612 KB Output is correct
55 Correct 2 ms 1996 KB Output is correct
56 Correct 19 ms 2820 KB Output is correct
57 Correct 19 ms 9244 KB Output is correct
58 Correct 11 ms 2564 KB Output is correct
59 Correct 14 ms 3068 KB Output is correct
60 Correct 14 ms 3580 KB Output is correct
61 Correct 15 ms 3392 KB Output is correct
62 Incorrect 21 ms 9212 KB Output isn't correct
63 Halted 0 ms 0 KB -