oj.uz

Submission #294149

# Submission time Handle Problem Language Result Execution time Memory
294149 2020-09-08T15:57:23 Z tqbfjotld Sky Walking (IOI19_walk) C++14
24 / 100
 1199 ms 195184 KB 
#include "walk.h"
#include <bits/stdc++.h>
using namespace std;

vector<pair<pair<int,int>,int> > v;
vector<pair<int,long long> > adjl[1100005];
long long dist[1100005];
vector<pair<int,int> > skyh[100005];


long long min_distance(std::vector<int> X, std::vector<int> h, std::vector<int> l, std::vector<int> r, std::vector<int> y, int s, int g) {
    vector<pair<int,int> > news;
    for (int x = 0; x<X.size(); x++){
        news.push_back({h[x],x});
    }
    sort(news.begin(),news.end(),greater<pair<int,int> >());
    set<int> S;
    vector<pair<int,int> > sky;
    for (int x = 0; x<l.size(); x++){
        sky.push_back({y[x],x});
    }
    int nwn = X.size();
    sort(sky.begin(),sky.end(),greater<pair<int,int> >());
    int cur = 0;
    for (auto x : sky){
        while (cur!=X.size() && news[cur].first>=x.first){
            S.insert(news[cur].second);
            cur++;
        }
        bool isn = true;
        int pre = -1;
        for (auto it = S.lower_bound(l[x.second]); it!=S.end() && (*it)<=r[x.second]; it++){
            int nw = nwn++;
            //printf("%d is (%d,%d)\n",nw,X[(*it)],x.first);
            skyh[(*it)].push_back({x.first,nw});
            if (!isn){
                adjl[nw].push_back({nw-1,X[(*it)]-pre});
                adjl[nw-1].push_back({nw,X[(*it)]-pre});
                //printf("add edge %d %d %d\n",nw,nw-1,X[(*it)]-pre);
            }
            pre = X[(*it)];
            isn = false;
        }
    }
    int stn,endn;
    for (int x = 0; x<X.size(); x++){
        if (x==s){
            stn = nwn++;
            skyh[x].push_back({0,stn});
        }
        if (x==g){
            endn = nwn++;
            skyh[x].push_back({0,endn});
        }
        sort(skyh[x].begin(),skyh[x].end());
        for (int z = 1; z<skyh[x].size(); z++){
            adjl[skyh[x][z].second].push_back({skyh[x][z-1].second,skyh[x][z].first-skyh[x][z-1].first});
            adjl[skyh[x][z-1].second].push_back({skyh[x][z].second,skyh[x][z].first-skyh[x][z-1].first});
            //printf("add edge %d-%d,%d\n",skyh[x][z-1].second,skyh[x][z].second,skyh[x][z].first-skyh[x][z-1].first);
        }
    }
    //printf("stn,%d,endn,%d\n",stn,endn);
    priority_queue<pair<long long,int>,vector<pair<long long,int> >,greater<pair<long long,int> > >pq;
    memset(dist,-1,sizeof(dist));
    dist[stn] = 0;
    pq.push({0,stn});
    while (!pq.empty()){
        int nd = pq.top().second;
        long long d = pq.top().first;
        pq.pop();
        if (d>dist[nd]) continue;
        //printf("d[%d] = %d\n",nd,d);
        for (auto x : adjl[nd]){
            if (dist[x.first]==-1 || d+x.second<dist[x.first]){
                dist[x.first] = d+x.second;
                pq.push({dist[x.first],x.first});
            }
        }
    }
    if (dist[endn]==-1) return -1;
    //printf("distThing = %d\n",dist[endn]);
	return dist[endn];
}

Compilation message

walk.cpp: In function 'long long int min_distance(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, int, int)':
walk.cpp:13:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |     for (int x = 0; x<X.size(); x++){
      |                     ~^~~~~~~~~
walk.cpp:19:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |     for (int x = 0; x<l.size(); x++){
      |                     ~^~~~~~~~~
walk.cpp:26:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |         while (cur!=X.size() && news[cur].first>=x.first){
      |                ~~~^~~~~~~~~~
walk.cpp:46:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |     for (int x = 0; x<X.size(); x++){
      |                     ~^~~~~~~~~
walk.cpp:56:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |         for (int z = 1; z<skyh[x].size(); z++){
      |                         ~^~~~~~~~~~~~~~~
walk.cpp:80:18: warning: 'endn' may be used uninitialized in this function [-Wmaybe-uninitialized]
   80 |     if (dist[endn]==-1) return -1;
      |         ~~~~~~~~~^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 37120 KB Output is correct
2 Correct 25 ms 37132 KB Output is correct
3 Correct 25 ms 37120 KB Output is correct
4 Correct 25 ms 37112 KB Output is correct
5 Correct 25 ms 37120 KB Output is correct
6 Correct 25 ms 37120 KB Output is correct
7 Correct 26 ms 37120 KB Output is correct
8 Correct 25 ms 37112 KB Output is correct
9 Correct 25 ms 37120 KB Output is correct
10 Correct 25 ms 37248 KB Output is correct
11 Correct 25 ms 37112 KB Output is correct
12 Correct 25 ms 37120 KB Output is correct
13 Correct 25 ms 37112 KB Output is correct
14 Correct 24 ms 37120 KB Output is correct
15 Correct 26 ms 37116 KB Output is correct
16 Correct 26 ms 37120 KB Output is correct
17 Correct 26 ms 37240 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 37120 KB Output is correct
2 Correct 25 ms 37120 KB Output is correct
3 Correct 751 ms 110044 KB Output is correct
4 Correct 930 ms 118888 KB Output is correct
5 Correct 597 ms 108276 KB Output is correct
6 Correct 525 ms 100716 KB Output is correct
7 Correct 592 ms 108392 KB Output is correct
8 Correct 921 ms 127960 KB Output is correct
9 Correct 695 ms 107880 KB Output is correct
10 Correct 1199 ms 147728 KB Output is correct
11 Correct 497 ms 79600 KB Output is correct
12 Correct 425 ms 67164 KB Output is correct
13 Correct 1075 ms 136684 KB Output is correct
14 Correct 268 ms 65768 KB Output is correct
15 Correct 311 ms 65640 KB Output is correct
16 Correct 293 ms 67048 KB Output is correct
17 Correct 324 ms 65768 KB Output is correct
18 Correct 171 ms 64812 KB Output is correct
19 Correct 33 ms 38520 KB Output is correct
20 Correct 124 ms 51956 KB Output is correct
21 Correct 317 ms 64872 KB Output is correct
22 Correct 340 ms 65772 KB Output is correct
23 Correct 265 ms 75760 KB Output is correct
24 Correct 301 ms 65896 KB Output is correct
25 Correct 342 ms 65768 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 136 ms 50288 KB Output is correct
2 Runtime error 394 ms 195184 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 136 ms 50288 KB Output is correct
2 Runtime error 394 ms 195184 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 37120 KB Output is correct
2 Correct 25 ms 37132 KB Output is correct
3 Correct 25 ms 37120 KB Output is correct
4 Correct 25 ms 37112 KB Output is correct
5 Correct 25 ms 37120 KB Output is correct
6 Correct 25 ms 37120 KB Output is correct
7 Correct 26 ms 37120 KB Output is correct
8 Correct 25 ms 37112 KB Output is correct
9 Correct 25 ms 37120 KB Output is correct
10 Correct 25 ms 37248 KB Output is correct
11 Correct 25 ms 37112 KB Output is correct
12 Correct 25 ms 37120 KB Output is correct
13 Correct 25 ms 37112 KB Output is correct
14 Correct 24 ms 37120 KB Output is correct
15 Correct 26 ms 37116 KB Output is correct
16 Correct 26 ms 37120 KB Output is correct
17 Correct 26 ms 37240 KB Output is correct
18 Correct 25 ms 37120 KB Output is correct
19 Correct 25 ms 37120 KB Output is correct
20 Correct 751 ms 110044 KB Output is correct
21 Correct 930 ms 118888 KB Output is correct
22 Correct 597 ms 108276 KB Output is correct
23 Correct 525 ms 100716 KB Output is correct
24 Correct 592 ms 108392 KB Output is correct
25 Correct 921 ms 127960 KB Output is correct
26 Correct 695 ms 107880 KB Output is correct
27 Correct 1199 ms 147728 KB Output is correct
28 Correct 497 ms 79600 KB Output is correct
29 Correct 425 ms 67164 KB Output is correct
30 Correct 1075 ms 136684 KB Output is correct
31 Correct 268 ms 65768 KB Output is correct
32 Correct 311 ms 65640 KB Output is correct
33 Correct 293 ms 67048 KB Output is correct
34 Correct 324 ms 65768 KB Output is correct
35 Correct 171 ms 64812 KB Output is correct
36 Correct 33 ms 38520 KB Output is correct
37 Correct 124 ms 51956 KB Output is correct
38 Correct 317 ms 64872 KB Output is correct
39 Correct 340 ms 65772 KB Output is correct
40 Correct 265 ms 75760 KB Output is correct
41 Correct 301 ms 65896 KB Output is correct
42 Correct 342 ms 65768 KB Output is correct
43 Correct 136 ms 50288 KB Output is correct
44 Runtime error 394 ms 195184 KB Execution killed with signal 11
45 Halted 0 ms 0 KB -