oj.uz

Submission #1013362

# Submission time Handle Problem Language Result Execution time Memory
1013362 2024-07-03T12:54:22 Z bachhoangxuan Sky Walking (IOI19_walk) C++17
100 / 100
 1022 ms 188060 KB 
#include "walk.h"
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int,int>
#define pli pair<ll,int>
#define fi first
#define se second
const ll inf = 1e18;
const int maxn = 2e6+5;
vector<pii> edge[maxn];
void add_edge(int u,int v,int w){
    edge[u].push_back({v,w});
    edge[v].push_back({u,w});
}

ll min_distance(vector<int> X, vector<int> H, vector<int> L, vector<int> R, vector<int> Y, int S, int T) {
    int N=(int)H.size(),M=(int)Y.size();

    vector<pii> p(N);
    for(int i=0;i<N;i++) p[i]={H[i],i};
    sort(p.begin(),p.end(),greater<pii>());

    for(int x:{S,T}){
        vector<pii> f(M);
        for(int i=0;i<M;i++) f[i]={Y[i],i};
        sort(f.begin(),f.end(),greater<pii>());
        auto add = [&](int a,int b,int y){
            L.push_back(a);
            R.push_back(b);
            Y.push_back(y);
        };

        set<int> ss;
        int pos=0;
        for(auto [y,i]:f){
            if(R[i]<=x || x<=L[i]) continue;
            while(pos<N && p[pos].fi>=y) ss.insert(p[pos++].se);
            int b=*ss.lower_bound(x),a=*prev(ss.upper_bound(x));
            if(L[i]<a) add(L[i],a,y);
            if(a<b) add(a,b,y);
            if(b<R[i]) add(b,R[i],y);
        }
        M=(int)Y.size();
    }

    vector<pii> f(M);
    for(int i=0;i<M;i++) f[i]={Y[i],i};
    sort(f.begin(),f.end(),greater<pii>());

    int cnt=0,pos=0;
    vector<vector<pii>> g(N);
    set<int> ss;

    for(auto [y,i]:f){
        while(pos<N && p[pos].fi>=y) ss.insert(p[pos++].se);
        int a=L[i],b=R[i];ss.insert(b);
        auto it=ss.insert(a).fi;

        int k=-1;
        while(it!=ss.end() && *it<=b){
            int j=*it;
            if(!g[j].empty()) add_edge(g[j].back().se,cnt,g[j].back().fi-Y[i]);
            g[j].push_back({Y[i],cnt});
            if(k!=-1) add_edge(cnt-1,cnt,X[j]-X[k]);
            k=j;cnt++;
            if(j==a || j==b) it++;
            else it=ss.erase(it);
        }
    }
    for(int x:{S,T}){
        if(g[x].empty()) return -1;
        add_edge(g[x].back().se,cnt++,g[x].back().fi);
    }
    vector<ll> dist(cnt,inf);
    priority_queue<pli,vector<pli>,greater<pli>> pq;
    dist[cnt-2]=0;pq.push({0,cnt-2});
    while(!pq.empty()){
        auto [d,u]=pq.top();pq.pop();
        if(d!=dist[u]) continue;
        for(auto [v,w]:edge[u]){
            if(dist[u]+w<dist[v]) pq.push({dist[v]=dist[u]+w,v});
        }
    }
    return (dist[cnt-1]==inf?-1:dist[cnt-1]);
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 47192 KB Output is correct
2 Correct 14 ms 47196 KB Output is correct
3 Correct 13 ms 47192 KB Output is correct
4 Correct 13 ms 47192 KB Output is correct
5 Correct 14 ms 47212 KB Output is correct
6 Correct 16 ms 47196 KB Output is correct
7 Correct 14 ms 47404 KB Output is correct
8 Correct 13 ms 47196 KB Output is correct
9 Correct 14 ms 47364 KB Output is correct
10 Correct 15 ms 47448 KB Output is correct
11 Correct 14 ms 47236 KB Output is correct
12 Correct 18 ms 47220 KB Output is correct
13 Correct 14 ms 47192 KB Output is correct
14 Correct 15 ms 47196 KB Output is correct
15 Correct 14 ms 47196 KB Output is correct
16 Correct 14 ms 47196 KB Output is correct
17 Correct 15 ms 47196 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 47192 KB Output is correct
2 Correct 14 ms 47196 KB Output is correct
3 Correct 223 ms 75592 KB Output is correct
4 Correct 376 ms 86952 KB Output is correct
5 Correct 214 ms 80796 KB Output is correct
6 Correct 203 ms 83236 KB Output is correct
7 Correct 193 ms 80900 KB Output is correct
8 Correct 213 ms 76872 KB Output is correct
9 Correct 255 ms 82912 KB Output is correct
10 Correct 379 ms 88192 KB Output is correct
11 Correct 209 ms 74920 KB Output is correct
12 Correct 183 ms 74816 KB Output is correct
13 Correct 359 ms 88644 KB Output is correct
14 Correct 242 ms 92848 KB Output is correct
15 Correct 226 ms 82948 KB Output is correct
16 Correct 151 ms 74176 KB Output is correct
17 Correct 162 ms 72744 KB Output is correct
18 Correct 96 ms 73284 KB Output is correct
19 Correct 22 ms 49240 KB Output is correct
20 Correct 103 ms 67436 KB Output is correct
21 Correct 151 ms 71920 KB Output is correct
22 Correct 149 ms 73788 KB Output is correct
23 Correct 143 ms 76064 KB Output is correct
24 Correct 137 ms 73536 KB Output is correct
25 Correct 151 ms 72784 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 57528 KB Output is correct
2 Correct 191 ms 77892 KB Output is correct
3 Correct 212 ms 80960 KB Output is correct
4 Correct 377 ms 97092 KB Output is correct
5 Correct 358 ms 98112 KB Output is correct
6 Correct 360 ms 96836 KB Output is correct
7 Correct 213 ms 80064 KB Output is correct
8 Correct 204 ms 74816 KB Output is correct
9 Correct 364 ms 95808 KB Output is correct
10 Correct 165 ms 84036 KB Output is correct
11 Correct 28 ms 52960 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 57528 KB Output is correct
2 Correct 191 ms 77892 KB Output is correct
3 Correct 212 ms 80960 KB Output is correct
4 Correct 377 ms 97092 KB Output is correct
5 Correct 358 ms 98112 KB Output is correct
6 Correct 360 ms 96836 KB Output is correct
7 Correct 213 ms 80064 KB Output is correct
8 Correct 204 ms 74816 KB Output is correct
9 Correct 364 ms 95808 KB Output is correct
10 Correct 165 ms 84036 KB Output is correct
11 Correct 28 ms 52960 KB Output is correct
12 Correct 228 ms 80612 KB Output is correct
13 Correct 242 ms 90432 KB Output is correct
14 Correct 339 ms 96940 KB Output is correct
15 Correct 289 ms 87984 KB Output is correct
16 Correct 379 ms 91712 KB Output is correct
17 Correct 342 ms 97092 KB Output is correct
18 Correct 273 ms 87864 KB Output is correct
19 Correct 218 ms 86804 KB Output is correct
20 Correct 191 ms 79044 KB Output is correct
21 Correct 69 ms 61776 KB Output is correct
22 Correct 198 ms 86168 KB Output is correct
23 Correct 195 ms 84868 KB Output is correct
24 Correct 165 ms 77924 KB Output is correct
25 Correct 193 ms 83388 KB Output is correct
26 Correct 131 ms 72596 KB Output is correct
27 Correct 389 ms 97092 KB Output is correct
28 Correct 259 ms 89876 KB Output is correct
29 Correct 329 ms 95788 KB Output is correct
30 Correct 202 ms 79292 KB Output is correct
31 Correct 304 ms 94400 KB Output is correct
32 Correct 187 ms 78148 KB Output is correct
33 Correct 162 ms 78756 KB Output is correct
34 Correct 141 ms 79632 KB Output is correct
35 Correct 175 ms 79424 KB Output is correct
36 Correct 157 ms 75852 KB Output is correct
37 Correct 143 ms 72004 KB Output is correct
38 Correct 145 ms 73780 KB Output is correct
39 Correct 131 ms 76216 KB Output is correct
40 Correct 158 ms 73536 KB Output is correct
41 Correct 160 ms 72608 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 47192 KB Output is correct
2 Correct 14 ms 47196 KB Output is correct
3 Correct 13 ms 47192 KB Output is correct
4 Correct 13 ms 47192 KB Output is correct
5 Correct 14 ms 47212 KB Output is correct
6 Correct 16 ms 47196 KB Output is correct
7 Correct 14 ms 47404 KB Output is correct
8 Correct 13 ms 47196 KB Output is correct
9 Correct 14 ms 47364 KB Output is correct
10 Correct 15 ms 47448 KB Output is correct
11 Correct 14 ms 47236 KB Output is correct
12 Correct 18 ms 47220 KB Output is correct
13 Correct 14 ms 47192 KB Output is correct
14 Correct 15 ms 47196 KB Output is correct
15 Correct 14 ms 47196 KB Output is correct
16 Correct 14 ms 47196 KB Output is correct
17 Correct 15 ms 47196 KB Output is correct
18 Correct 14 ms 47192 KB Output is correct
19 Correct 14 ms 47196 KB Output is correct
20 Correct 223 ms 75592 KB Output is correct
21 Correct 376 ms 86952 KB Output is correct
22 Correct 214 ms 80796 KB Output is correct
23 Correct 203 ms 83236 KB Output is correct
24 Correct 193 ms 80900 KB Output is correct
25 Correct 213 ms 76872 KB Output is correct
26 Correct 255 ms 82912 KB Output is correct
27 Correct 379 ms 88192 KB Output is correct
28 Correct 209 ms 74920 KB Output is correct
29 Correct 183 ms 74816 KB Output is correct
30 Correct 359 ms 88644 KB Output is correct
31 Correct 242 ms 92848 KB Output is correct
32 Correct 226 ms 82948 KB Output is correct
33 Correct 151 ms 74176 KB Output is correct
34 Correct 162 ms 72744 KB Output is correct
35 Correct 96 ms 73284 KB Output is correct
36 Correct 22 ms 49240 KB Output is correct
37 Correct 103 ms 67436 KB Output is correct
38 Correct 151 ms 71920 KB Output is correct
39 Correct 149 ms 73788 KB Output is correct
40 Correct 143 ms 76064 KB Output is correct
41 Correct 137 ms 73536 KB Output is correct
42 Correct 151 ms 72784 KB Output is correct
43 Correct 74 ms 57528 KB Output is correct
44 Correct 191 ms 77892 KB Output is correct
45 Correct 212 ms 80960 KB Output is correct
46 Correct 377 ms 97092 KB Output is correct
47 Correct 358 ms 98112 KB Output is correct
48 Correct 360 ms 96836 KB Output is correct
49 Correct 213 ms 80064 KB Output is correct
50 Correct 204 ms 74816 KB Output is correct
51 Correct 364 ms 95808 KB Output is correct
52 Correct 165 ms 84036 KB Output is correct
53 Correct 28 ms 52960 KB Output is correct
54 Correct 228 ms 80612 KB Output is correct
55 Correct 242 ms 90432 KB Output is correct
56 Correct 339 ms 96940 KB Output is correct
57 Correct 289 ms 87984 KB Output is correct
58 Correct 379 ms 91712 KB Output is correct
59 Correct 342 ms 97092 KB Output is correct
60 Correct 273 ms 87864 KB Output is correct
61 Correct 218 ms 86804 KB Output is correct
62 Correct 191 ms 79044 KB Output is correct
63 Correct 69 ms 61776 KB Output is correct
64 Correct 198 ms 86168 KB Output is correct
65 Correct 195 ms 84868 KB Output is correct
66 Correct 165 ms 77924 KB Output is correct
67 Correct 193 ms 83388 KB Output is correct
68 Correct 131 ms 72596 KB Output is correct
69 Correct 389 ms 97092 KB Output is correct
70 Correct 259 ms 89876 KB Output is correct
71 Correct 329 ms 95788 KB Output is correct
72 Correct 202 ms 79292 KB Output is correct
73 Correct 304 ms 94400 KB Output is correct
74 Correct 187 ms 78148 KB Output is correct
75 Correct 162 ms 78756 KB Output is correct
76 Correct 141 ms 79632 KB Output is correct
77 Correct 175 ms 79424 KB Output is correct
78 Correct 157 ms 75852 KB Output is correct
79 Correct 143 ms 72004 KB Output is correct
80 Correct 145 ms 73780 KB Output is correct
81 Correct 131 ms 76216 KB Output is correct
82 Correct 158 ms 73536 KB Output is correct
83 Correct 160 ms 72608 KB Output is correct
84 Correct 58 ms 55640 KB Output is correct
85 Correct 250 ms 85056 KB Output is correct
86 Correct 595 ms 126156 KB Output is correct
87 Correct 92 ms 63828 KB Output is correct
88 Correct 141 ms 65076 KB Output is correct
89 Correct 98 ms 63828 KB Output is correct
90 Correct 31 ms 50920 KB Output is correct
91 Correct 15 ms 47452 KB Output is correct
92 Correct 30 ms 50012 KB Output is correct
93 Correct 240 ms 74432 KB Output is correct
94 Correct 108 ms 61872 KB Output is correct
95 Correct 230 ms 87740 KB Output is correct
96 Correct 227 ms 86080 KB Output is correct
97 Correct 223 ms 87088 KB Output is correct
98 Correct 213 ms 83404 KB Output is correct
99 Correct 1022 ms 188060 KB Output is correct
100 Correct 450 ms 96172 KB Output is correct
101 Correct 596 ms 126904 KB Output is correct
102 Correct 254 ms 80340 KB Output is correct
103 Correct 161 ms 78100 KB Output is correct
104 Correct 163 ms 78760 KB Output is correct
105 Correct 160 ms 79768 KB Output is correct
106 Correct 202 ms 83452 KB Output is correct
107 Correct 166 ms 79640 KB Output is correct
108 Correct 35 ms 51548 KB Output is correct
109 Correct 335 ms 89144 KB Output is correct
110 Correct 244 ms 90464 KB Output is correct
111 Correct 240 ms 90508 KB Output is correct
112 Correct 233 ms 79972 KB Output is correct
113 Correct 215 ms 77316 KB Output is correct