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Submission #435347

# Submission time Handle Problem Language Result Execution time Memory
435347 2021-06-23T08:26:02 Z iANikzad Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
 415 ms 203920 KB 
#include<bits/stdc++.h>

using namespace std;

#define pb push_back
#define F first
#define S second
#define debug(x) cerr<<#x<<" :"<<x<<"\n"
#define all(x) x.begin(),x.end()
#define pii pair<int,int>
#define mp make_pair
#define FAST ios_base::sync_with_stdio(false), cin.tie(), cout.tie();
//#define int long long

typedef long long ll;
typedef long double ld;

const int maxn = 3e4 + 7;
const int mod = 1e9 + 7;
const int INF = 1e9 + 7;
const int mlog = 20;
const int SQRT = 170;

int n, m;
int a[maxn], p[maxn];

vector<int> vec[maxn];
vector<pii> q[maxn * SQRT];

int ss, res;

int H[maxn][SQRT], F[maxn];

void add(int x,int u,int t)
{
    if(u >= SQRT)
    {
        for(int i = 0; i < SQRT; i++)
        {
            if(x + i*u < n && !H[x+i*u][0])
                ss++, q[t+i].pb(mp(x+i*u,0));

            if(x - i*u >= 0 && !H[x-i*u][0])
                ss++, q[t+i].pb(mp(x-i*u,0));
        }
    }
    else if(!H[x][u]) ss++, q[t].pb(mp(x,u));
}



int32_t main()
{
    FAST;

    cin >> n >> m;
    for(int i = 0; i < m; i++)
    {
        cin >> a[i] >> p[i];
        vec[a[i]].pb(p[i]);
    }

    add(a[0], p[0], 0);

    for(res = 0; ss; res++)
    {
        for(int i = 0; i < q[res].size(); i++, ss--)
        {
            int x = q[res][i].F;
            int u = q[res][i].S;

            if(x == a[1]) return cout << res << "\n", 0;

            if(H[x][u]) continue;
            H[x][u] = 1;

            if(u) if(x + u < n && !H[x + u][u]) ss++ ,q[res + 1].pb(mp(x + u,u));
            if(x - u >= 0 && !H[x - u][u]) ss++, q[res + 1].pb(mp(x - u,u));

            if(F[x]) continue;
            F[x] = 1;

            for(int j = 0; j < vec[x].size(); j++)
                add(x, vec[x][j], res);
        }
    }

    cout << -1 << "\n";

    return 0;
}

Compilation message

skyscraper.cpp: In function 'int32_t main()':
skyscraper.cpp:67:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   67 |         for(int i = 0; i < q[res].size(); i++, ss--)
      |                        ~~^~~~~~~~~~~~~~~
skyscraper.cpp:83:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   83 |             for(int j = 0; j < vec[x].size(); j++)
      |                            ~~^~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 78 ms 120708 KB Output is correct
2 Correct 78 ms 120776 KB Output is correct
3 Correct 74 ms 120900 KB Output is correct
4 Correct 71 ms 120700 KB Output is correct
5 Correct 73 ms 120792 KB Output is correct
6 Correct 73 ms 120708 KB Output is correct
7 Correct 72 ms 120804 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 120756 KB Output is correct
2 Correct 78 ms 120732 KB Output is correct
3 Correct 72 ms 120772 KB Output is correct
4 Correct 72 ms 120780 KB Output is correct
5 Correct 74 ms 120692 KB Output is correct
6 Correct 73 ms 120772 KB Output is correct
7 Correct 73 ms 120772 KB Output is correct
8 Correct 73 ms 120688 KB Output is correct
9 Correct 70 ms 120732 KB Output is correct
10 Correct 72 ms 120800 KB Output is correct
11 Correct 71 ms 120824 KB Output is correct
12 Correct 73 ms 120848 KB Output is correct
13 Correct 76 ms 120876 KB Output is correct
14 Correct 74 ms 120904 KB Output is correct
15 Correct 75 ms 120924 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 120772 KB Output is correct
2 Correct 72 ms 120772 KB Output is correct
3 Correct 70 ms 120764 KB Output is correct
4 Correct 72 ms 120764 KB Output is correct
5 Correct 72 ms 120700 KB Output is correct
6 Correct 72 ms 120764 KB Output is correct
7 Correct 73 ms 120824 KB Output is correct
8 Correct 73 ms 120900 KB Output is correct
9 Correct 70 ms 120836 KB Output is correct
10 Correct 73 ms 120772 KB Output is correct
11 Correct 76 ms 120772 KB Output is correct
12 Correct 75 ms 120916 KB Output is correct
13 Correct 73 ms 120908 KB Output is correct
14 Correct 72 ms 120940 KB Output is correct
15 Correct 75 ms 120880 KB Output is correct
16 Correct 71 ms 120744 KB Output is correct
17 Correct 76 ms 121412 KB Output is correct
18 Correct 73 ms 120896 KB Output is correct
19 Correct 74 ms 120900 KB Output is correct
20 Correct 75 ms 122180 KB Output is correct
21 Correct 76 ms 120720 KB Output is correct
22 Correct 73 ms 120808 KB Output is correct
23 Correct 78 ms 121924 KB Output is correct
24 Correct 74 ms 122192 KB Output is correct
25 Correct 74 ms 121656 KB Output is correct
26 Correct 81 ms 122180 KB Output is correct
27 Correct 72 ms 122260 KB Output is correct
28 Correct 77 ms 122668 KB Output is correct
29 Correct 79 ms 122796 KB Output is correct
30 Correct 74 ms 122368 KB Output is correct
31 Correct 73 ms 122572 KB Output is correct
32 Correct 75 ms 122436 KB Output is correct
33 Correct 76 ms 123256 KB Output is correct
34 Correct 73 ms 122600 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 120772 KB Output is correct
2 Correct 71 ms 120772 KB Output is correct
3 Correct 75 ms 120804 KB Output is correct
4 Correct 71 ms 120772 KB Output is correct
5 Correct 72 ms 120776 KB Output is correct
6 Correct 72 ms 120792 KB Output is correct
7 Correct 72 ms 120772 KB Output is correct
8 Correct 72 ms 120772 KB Output is correct
9 Correct 71 ms 120776 KB Output is correct
10 Correct 75 ms 120900 KB Output is correct
11 Correct 70 ms 120864 KB Output is correct
12 Correct 74 ms 120876 KB Output is correct
13 Correct 73 ms 120900 KB Output is correct
14 Correct 75 ms 120936 KB Output is correct
15 Correct 72 ms 120848 KB Output is correct
16 Correct 74 ms 120824 KB Output is correct
17 Correct 72 ms 121328 KB Output is correct
18 Correct 73 ms 120832 KB Output is correct
19 Correct 71 ms 120772 KB Output is correct
20 Correct 75 ms 122244 KB Output is correct
21 Correct 74 ms 120772 KB Output is correct
22 Correct 70 ms 120772 KB Output is correct
23 Correct 75 ms 121900 KB Output is correct
24 Correct 71 ms 122196 KB Output is correct
25 Correct 80 ms 121796 KB Output is correct
26 Correct 79 ms 122244 KB Output is correct
27 Correct 79 ms 122216 KB Output is correct
28 Correct 77 ms 122652 KB Output is correct
29 Correct 77 ms 122868 KB Output is correct
30 Correct 74 ms 122368 KB Output is correct
31 Correct 75 ms 122560 KB Output is correct
32 Correct 74 ms 122440 KB Output is correct
33 Correct 76 ms 123204 KB Output is correct
34 Correct 75 ms 122688 KB Output is correct
35 Correct 85 ms 122420 KB Output is correct
36 Correct 72 ms 121468 KB Output is correct
37 Correct 81 ms 122564 KB Output is correct
38 Correct 89 ms 122904 KB Output is correct
39 Correct 79 ms 121384 KB Output is correct
40 Correct 80 ms 121412 KB Output is correct
41 Correct 80 ms 122384 KB Output is correct
42 Correct 83 ms 122604 KB Output is correct
43 Correct 83 ms 122596 KB Output is correct
44 Correct 77 ms 122512 KB Output is correct
45 Correct 96 ms 126640 KB Output is correct
46 Correct 92 ms 125308 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 120748 KB Output is correct
2 Correct 75 ms 120756 KB Output is correct
3 Correct 73 ms 120772 KB Output is correct
4 Correct 76 ms 120752 KB Output is correct
5 Correct 70 ms 120724 KB Output is correct
6 Correct 70 ms 120736 KB Output is correct
7 Correct 73 ms 120712 KB Output is correct
8 Correct 70 ms 120800 KB Output is correct
9 Correct 73 ms 120912 KB Output is correct
10 Correct 73 ms 120852 KB Output is correct
11 Correct 76 ms 120832 KB Output is correct
12 Correct 72 ms 120800 KB Output is correct
13 Correct 75 ms 120912 KB Output is correct
14 Correct 73 ms 120920 KB Output is correct
15 Correct 72 ms 121024 KB Output is correct
16 Correct 77 ms 120780 KB Output is correct
17 Correct 73 ms 121332 KB Output is correct
18 Correct 73 ms 120848 KB Output is correct
19 Correct 77 ms 120864 KB Output is correct
20 Correct 75 ms 122288 KB Output is correct
21 Correct 73 ms 120960 KB Output is correct
22 Correct 73 ms 120772 KB Output is correct
23 Correct 73 ms 121948 KB Output is correct
24 Correct 78 ms 122184 KB Output is correct
25 Correct 72 ms 121712 KB Output is correct
26 Correct 73 ms 122248 KB Output is correct
27 Correct 71 ms 122180 KB Output is correct
28 Correct 76 ms 122668 KB Output is correct
29 Correct 74 ms 122860 KB Output is correct
30 Correct 72 ms 122360 KB Output is correct
31 Correct 75 ms 122576 KB Output is correct
32 Correct 75 ms 122380 KB Output is correct
33 Correct 76 ms 123204 KB Output is correct
34 Correct 73 ms 122612 KB Output is correct
35 Correct 84 ms 122588 KB Output is correct
36 Correct 78 ms 121540 KB Output is correct
37 Correct 83 ms 122640 KB Output is correct
38 Correct 84 ms 122880 KB Output is correct
39 Correct 78 ms 121232 KB Output is correct
40 Correct 89 ms 121460 KB Output is correct
41 Correct 80 ms 122436 KB Output is correct
42 Correct 78 ms 122548 KB Output is correct
43 Correct 78 ms 122516 KB Output is correct
44 Correct 80 ms 122548 KB Output is correct
45 Correct 91 ms 126720 KB Output is correct
46 Correct 91 ms 125372 KB Output is correct
47 Correct 92 ms 129220 KB Output is correct
48 Correct 82 ms 121412 KB Output is correct
49 Correct 82 ms 121540 KB Output is correct
50 Correct 77 ms 121252 KB Output is correct
51 Correct 106 ms 142248 KB Output is correct
52 Correct 110 ms 142304 KB Output is correct
53 Correct 86 ms 126720 KB Output is correct
54 Correct 85 ms 141364 KB Output is correct
55 Correct 88 ms 141536 KB Output is correct
56 Correct 96 ms 142992 KB Output is correct
57 Correct 77 ms 121352 KB Output is correct
58 Correct 98 ms 143268 KB Output is correct
59 Correct 96 ms 143008 KB Output is correct
60 Correct 97 ms 142916 KB Output is correct
61 Correct 98 ms 142660 KB Output is correct
62 Correct 149 ms 150060 KB Output is correct
63 Correct 147 ms 151836 KB Output is correct
64 Correct 156 ms 153280 KB Output is correct
65 Correct 250 ms 171104 KB Output is correct
66 Correct 415 ms 203920 KB Output is correct
67 Correct 220 ms 176572 KB Output is correct