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Submission #1041340

# Submission time Handle Problem Language Result Execution time Memory
1041340 2024-08-01T22:04:53 Z Math4Life2020 Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
 39 ms 6876 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long; using pii = pair<ll,ll>;
int main() {
    ios_base::sync_with_stdio(false); cin.tie(0);
	ll N,M; cin >> N >> M;
    ll K = 8;
    ll B[M],P[M];
    ll val[N];
    ll val2[K][N];
    bool found[N];
    bool found2[K][N];
    vector<pii> doges[N];
    for (ll i=0;i<M;i++) {
        cin >> B[i] >> P[i];
        doges[B[i]].push_back({i,P[i]});
    }
    for (ll i=0;i<N;i++) {
        for (ll k=0;k<K;k++) {
            val2[k][i]=1e18;
            found2[k][i]=0;
        }
        val[i]=1e18;
        found[i]=0;
    }
    val[B[0]]=0;
    priority_queue<pair<ll,ll>> PQ; //-val, position
    priority_queue<array<ll,3>> PQ2; //-val, position, k
    PQ.push({0,B[0]});
    while(1) {
        ll mv = 1e17; ll ctr = -1;
        ll lpop = -1;
        while (!PQ.empty()) {
            pii q0 = PQ.top(); ll v = -q0.first; ll x = q0.second;
            if (!found[x]) {
                ctr = x; mv = v; lpop = 0;
                break;
            } else {
                PQ.pop();
            }
        }
        while (!PQ2.empty()) {
            array<ll,3> a0 = PQ2.top(); ll v = -a0[0]; ll x = a0[1]; ll k = a0[2];
            if (v>=mv) {break;}
            if (!found2[k][x]) {
                found2[k][x]=1;
                if (((x-k)>=0)&&(val2[k][x-k]>(1+val2[k][x]))) {
                    val2[k][x-k]=1+val2[k][x];
                    PQ2.push({-val2[k][x-k],(x-k),k});
                }
                if (((x+k)<N)&&(val2[k][x+k]>(1+val2[k][x]))) {
                    val2[k][x+k]=1+val2[k][x];
                    PQ2.push({-val2[k][x+k],(x+k),k});
                }
                if (!found[x]) {
                    if (val2[k][x]<mv) {
                        mv = val2[k][x]; ctr = x; lpop = 1;
                    }
                    break;
                } else {
                    PQ2.pop();
                }
            } else {
                PQ2.pop();
            }
        }
        if (lpop==-1) {
            cout << "-1"; exit(0);
        } else if (ctr==B[1]) {
            ll ans = val[B[1]];
            for (ll k=0;k<K;k++) {
                ans = min(ans,val2[k][B[1]]);
            }
            cout << ans; exit(0);
        } else {
            if (lpop) {
                PQ2.pop();
            } else {
                PQ.pop();
            }
            for (pii x0: doges[ctr]) {
                ll i = x0.first;
                if (P[i]>=K) {
                    for (ll t=(-(B[i]/P[i]+2));t<(((N-B[i])/P[i])+2);t++) {
                        if ((B[i]+t*P[i])>=0 && (B[i]+t*P[i])<N) {
                            if ((mv+(ll)abs(t))<val[(B[i]+t*P[i])]) {
                                val[(B[i]+t*P[i])]=mv+(ll)abs(t);
                                PQ.push({-val[(B[i]+t*P[i])],(B[i]+t*P[i])});
                            }
                        }
                    }
                } else {
                    val2[P[i]][B[i]]=mv;
                    PQ2.push({-mv,B[i],P[i]});
                }
            }
        }
        found[ctr]=1;
    }
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 452 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 380 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 604 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 604 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 600 KB Output is correct
18 Correct 1 ms 604 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 0 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 0 ms 604 KB Output is correct
27 Correct 1 ms 604 KB Output is correct
28 Correct 1 ms 604 KB Output is correct
29 Correct 1 ms 860 KB Output is correct
30 Correct 1 ms 604 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 1 ms 604 KB Output is correct
33 Correct 2 ms 860 KB Output is correct
34 Correct 1 ms 860 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 600 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 604 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 0 ms 604 KB Output is correct
19 Correct 0 ms 604 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 604 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 1 ms 664 KB Output is correct
26 Correct 0 ms 604 KB Output is correct
27 Correct 1 ms 616 KB Output is correct
28 Correct 1 ms 604 KB Output is correct
29 Correct 1 ms 860 KB Output is correct
30 Correct 1 ms 604 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 1 ms 604 KB Output is correct
33 Correct 1 ms 860 KB Output is correct
34 Correct 1 ms 860 KB Output is correct
35 Correct 3 ms 1628 KB Output is correct
36 Correct 1 ms 688 KB Output is correct
37 Correct 3 ms 1568 KB Output is correct
38 Correct 6 ms 1884 KB Output is correct
39 Correct 4 ms 1884 KB Output is correct
40 Correct 4 ms 1884 KB Output is correct
41 Correct 5 ms 2060 KB Output is correct
42 Correct 4 ms 1760 KB Output is correct
43 Correct 3 ms 1756 KB Output is correct
44 Correct 8 ms 2792 KB Output is correct
45 Correct 5 ms 1884 KB Output is correct
46 Correct 5 ms 1884 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 604 KB Output is correct
18 Correct 1 ms 600 KB Output is correct
19 Correct 0 ms 604 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 604 KB Output is correct
23 Correct 0 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 0 ms 604 KB Output is correct
26 Correct 1 ms 604 KB Output is correct
27 Correct 0 ms 604 KB Output is correct
28 Correct 1 ms 604 KB Output is correct
29 Correct 1 ms 860 KB Output is correct
30 Correct 1 ms 604 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 1 ms 604 KB Output is correct
33 Correct 2 ms 860 KB Output is correct
34 Correct 2 ms 860 KB Output is correct
35 Correct 5 ms 1628 KB Output is correct
36 Correct 1 ms 604 KB Output is correct
37 Correct 3 ms 1628 KB Output is correct
38 Correct 4 ms 1884 KB Output is correct
39 Correct 3 ms 1884 KB Output is correct
40 Correct 4 ms 1964 KB Output is correct
41 Correct 5 ms 1880 KB Output is correct
42 Correct 3 ms 1760 KB Output is correct
43 Correct 5 ms 1756 KB Output is correct
44 Correct 5 ms 2796 KB Output is correct
45 Correct 5 ms 1884 KB Output is correct
46 Correct 4 ms 1880 KB Output is correct
47 Correct 5 ms 3292 KB Output is correct
48 Correct 4 ms 3676 KB Output is correct
49 Correct 5 ms 3964 KB Output is correct
50 Correct 3 ms 3932 KB Output is correct
51 Correct 13 ms 5856 KB Output is correct
52 Correct 12 ms 5896 KB Output is correct
53 Correct 7 ms 4700 KB Output is correct
54 Correct 2 ms 3416 KB Output is correct
55 Correct 2 ms 3420 KB Output is correct
56 Correct 7 ms 4700 KB Output is correct
57 Correct 2 ms 4312 KB Output is correct
58 Correct 9 ms 5852 KB Output is correct
59 Correct 9 ms 4628 KB Output is correct
60 Correct 7 ms 4568 KB Output is correct
61 Correct 6 ms 4568 KB Output is correct
62 Correct 10 ms 4700 KB Output is correct
63 Correct 19 ms 5844 KB Output is correct
64 Correct 20 ms 5848 KB Output is correct
65 Correct 22 ms 6860 KB Output is correct
66 Correct 39 ms 6864 KB Output is correct
67 Correct 28 ms 6876 KB Output is correct