oj.uz

Submission #1041337

# Submission time Handle Problem Language Result Execution time Memory
1041337 2024-08-01T22:03:00 Z Math4Life2020 Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
 54 ms 10192 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 = 20;
    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 1 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

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 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 612 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 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 1 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 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 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 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 0 ms 604 KB Output is correct
19 Correct 1 ms 860 KB Output is correct
20 Correct 1 ms 860 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 860 KB Output is correct
25 Correct 1 ms 860 KB Output is correct
26 Correct 1 ms 860 KB Output is correct
27 Correct 1 ms 860 KB Output is correct
28 Correct 1 ms 860 KB Output is correct
29 Correct 2 ms 860 KB Output is correct
30 Correct 1 ms 860 KB Output is correct
31 Correct 1 ms 860 KB Output is correct
32 Correct 1 ms 860 KB Output is correct
33 Correct 3 ms 860 KB Output is correct
34 Correct 2 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 452 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 0 ms 428 KB Output is correct
9 Correct 0 ms 348 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 0 ms 604 KB Output is correct
14 Correct 1 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 0 ms 860 KB Output is correct
19 Correct 1 ms 656 KB Output is correct
20 Correct 1 ms 860 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 860 KB Output is correct
25 Correct 1 ms 860 KB Output is correct
26 Correct 1 ms 860 KB Output is correct
27 Correct 1 ms 860 KB Output is correct
28 Correct 1 ms 860 KB Output is correct
29 Correct 2 ms 1100 KB Output is correct
30 Correct 1 ms 860 KB Output is correct
31 Correct 1 ms 860 KB Output is correct
32 Correct 1 ms 860 KB Output is correct
33 Correct 3 ms 1084 KB Output is correct
34 Correct 2 ms 860 KB Output is correct
35 Correct 4 ms 1956 KB Output is correct
36 Correct 1 ms 804 KB Output is correct
37 Correct 3 ms 1624 KB Output is correct
38 Correct 5 ms 2140 KB Output is correct
39 Correct 4 ms 2124 KB Output is correct
40 Correct 4 ms 2140 KB Output is correct
41 Correct 5 ms 2136 KB Output is correct
42 Correct 3 ms 1760 KB Output is correct
43 Correct 3 ms 1756 KB Output is correct
44 Correct 6 ms 2796 KB Output is correct
45 Correct 6 ms 2220 KB Output is correct
46 Correct 4 ms 2196 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 424 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 0 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 1 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 1 ms 860 KB Output is correct
20 Correct 1 ms 860 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 860 KB Output is correct
25 Correct 1 ms 860 KB Output is correct
26 Correct 1 ms 860 KB Output is correct
27 Correct 1 ms 860 KB Output is correct
28 Correct 1 ms 860 KB Output is correct
29 Correct 2 ms 860 KB Output is correct
30 Correct 1 ms 860 KB Output is correct
31 Correct 1 ms 860 KB Output is correct
32 Correct 1 ms 860 KB Output is correct
33 Correct 3 ms 1088 KB Output is correct
34 Correct 2 ms 860 KB Output is correct
35 Correct 4 ms 1884 KB Output is correct
36 Correct 1 ms 860 KB Output is correct
37 Correct 3 ms 1628 KB Output is correct
38 Correct 4 ms 2140 KB Output is correct
39 Correct 4 ms 2140 KB Output is correct
40 Correct 4 ms 2140 KB Output is correct
41 Correct 4 ms 2248 KB Output is correct
42 Correct 3 ms 1760 KB Output is correct
43 Correct 3 ms 1756 KB Output is correct
44 Correct 6 ms 2796 KB Output is correct
45 Correct 6 ms 2212 KB Output is correct
46 Correct 5 ms 2392 KB Output is correct
47 Correct 6 ms 4588 KB Output is correct
48 Correct 5 ms 6128 KB Output is correct
49 Correct 6 ms 6492 KB Output is correct
50 Correct 5 ms 6768 KB Output is correct
51 Correct 11 ms 8416 KB Output is correct
52 Correct 12 ms 8412 KB Output is correct
53 Correct 8 ms 7772 KB Output is correct
54 Correct 5 ms 6492 KB Output is correct
55 Correct 4 ms 6492 KB Output is correct
56 Correct 10 ms 8028 KB Output is correct
57 Correct 4 ms 7064 KB Output is correct
58 Correct 10 ms 8924 KB Output is correct
59 Correct 7 ms 7648 KB Output is correct
60 Correct 8 ms 7644 KB Output is correct
61 Correct 9 ms 7688 KB Output is correct
62 Correct 14 ms 8028 KB Output is correct
63 Correct 20 ms 9176 KB Output is correct
64 Correct 19 ms 8916 KB Output is correct
65 Correct 24 ms 10192 KB Output is correct
66 Correct 54 ms 9932 KB Output is correct
67 Correct 29 ms 9948 KB Output is correct