oj.uz

Submission #873675

# Submission time Handle Problem Language Result Execution time Memory
873675 2023-11-15T13:05:57 Z andrei_boaca Sky Walking (IOI19_walk) C++17
10 / 100
 4000 ms 364052 KB 
#include "walk.h"
#include <bits/stdc++.h>
//#include "grader.cpp"
using namespace std;
typedef long long ll;
typedef pair<ll,ll> pll;
const ll INF=1e18;
ll n;
ll ind;
map<pll,int> f;
vector<pll> muchii[1000005];
vector<pll> nodes[1000005];
ll dist[1000005];
void addnode(int x,int y)
{
    if(f.count({x,y})!=0)
        return;
    ind++;
    f[{x,y}]=ind;
    nodes[x].push_back({y,ind});
}
bool use[1000005];
void bfs()
{
    for(int i=1;i<=ind;i++)
        dist[i]=INF;
    dist[1]=0;
    priority_queue<pll,vector<pll>, greater<pll>> pq;
    pq.push({0,1});
    while(!pq.empty())
    {
        int nod=pq.top().second;
        pq.pop();
        if(use[nod])
            continue;
        use[nod]=1;
        for(auto i:muchii[nod])
            if(dist[i.first]>dist[nod]+i.second)
            {
                dist[i.first]=dist[nod]+i.second;
                pq.push({dist[i.first],i.first});
            }
    }
}
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)
{
    n=x.size();
    addnode(s,0);
    addnode(g,0);
    for(int i=0;i<l.size();i++)
    {
        int prv=-1;
        for(int j=l[i];j<=r[i];j++)
            if(y[i]<=h[j])
            {
                addnode(j,y[i]);
                if(prv!=-1)
                {
                    int a=f[{prv,y[i]}];
                    int b=f[{j,y[i]}];
                    muchii[a].push_back({b,x[j]-x[prv]});
                    muchii[b].push_back({a,x[j]-x[prv]});
                }
                prv=j;
            }
    }
    for(int i=0;i<n;i++)
        if(!nodes[i].empty())
        {
            sort(nodes[i].begin(),nodes[i].end());
            for(int j=1;j<nodes[i].size();j++)
            {
                ll d=nodes[i][j].first-nodes[i][j-1].first;
                ll a=nodes[i][j].second;
                ll b=nodes[i][j-1].second;
                muchii[a].push_back({b,d});
                muchii[b].push_back({a,d});
            }
        }
    bfs();
    if(dist[2]==INF)
        return -1;
    return dist[2];
}

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:50:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |     for(int i=0;i<l.size();i++)
      |                 ~^~~~~~~~~
walk.cpp:71:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |             for(int j=1;j<nodes[i].size();j++)
      |                         ~^~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 49752 KB Output is correct
2 Correct 11 ms 49752 KB Output is correct
3 Correct 10 ms 49756 KB Output is correct
4 Correct 10 ms 49756 KB Output is correct
5 Correct 13 ms 50008 KB Output is correct
6 Correct 11 ms 49756 KB Output is correct
7 Correct 11 ms 49756 KB Output is correct
8 Correct 11 ms 49756 KB Output is correct
9 Correct 10 ms 49756 KB Output is correct
10 Correct 11 ms 50012 KB Output is correct
11 Correct 10 ms 49756 KB Output is correct
12 Correct 11 ms 49756 KB Output is correct
13 Correct 11 ms 49756 KB Output is correct
14 Correct 10 ms 49752 KB Output is correct
15 Correct 10 ms 49880 KB Output is correct
16 Correct 10 ms 49868 KB Output is correct
17 Correct 11 ms 50012 KB Output is correct

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 49756 KB Output is correct
2 Correct 10 ms 49752 KB Output is correct
3 Correct 1101 ms 203384 KB Output is correct
4 Correct 932 ms 194364 KB Output is correct
5 Correct 670 ms 172432 KB Output is correct
6 Correct 1071 ms 156936 KB Output is correct
7 Correct 646 ms 172576 KB Output is correct
8 Correct 1427 ms 244816 KB Output is correct
9 Correct 754 ms 174244 KB Output is correct
10 Correct 1335 ms 258160 KB Output is correct
11 Correct 491 ms 122732 KB Output is correct
12 Correct 252 ms 88912 KB Output is correct
13 Correct 1141 ms 229820 KB Output is correct
14 Correct 2629 ms 87976 KB Output is correct
15 Correct 1453 ms 88924 KB Output is correct
16 Correct 315 ms 91220 KB Output is correct
17 Correct 314 ms 89960 KB Output is correct
18 Execution timed out 4034 ms 63828 KB Time limit exceeded
19 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 87 ms 63200 KB Output is correct
2 Runtime error 871 ms 364052 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 87 ms 63200 KB Output is correct
2 Runtime error 871 ms 364052 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 12 ms 49752 KB Output is correct
2 Correct 11 ms 49752 KB Output is correct
3 Correct 10 ms 49756 KB Output is correct
4 Correct 10 ms 49756 KB Output is correct
5 Correct 13 ms 50008 KB Output is correct
6 Correct 11 ms 49756 KB Output is correct
7 Correct 11 ms 49756 KB Output is correct
8 Correct 11 ms 49756 KB Output is correct
9 Correct 10 ms 49756 KB Output is correct
10 Correct 11 ms 50012 KB Output is correct
11 Correct 10 ms 49756 KB Output is correct
12 Correct 11 ms 49756 KB Output is correct
13 Correct 11 ms 49756 KB Output is correct
14 Correct 10 ms 49752 KB Output is correct
15 Correct 10 ms 49880 KB Output is correct
16 Correct 10 ms 49868 KB Output is correct
17 Correct 11 ms 50012 KB Output is correct
18 Correct 11 ms 49756 KB Output is correct
19 Correct 10 ms 49752 KB Output is correct
20 Correct 1101 ms 203384 KB Output is correct
21 Correct 932 ms 194364 KB Output is correct
22 Correct 670 ms 172432 KB Output is correct
23 Correct 1071 ms 156936 KB Output is correct
24 Correct 646 ms 172576 KB Output is correct
25 Correct 1427 ms 244816 KB Output is correct
26 Correct 754 ms 174244 KB Output is correct
27 Correct 1335 ms 258160 KB Output is correct
28 Correct 491 ms 122732 KB Output is correct
29 Correct 252 ms 88912 KB Output is correct
30 Correct 1141 ms 229820 KB Output is correct
31 Correct 2629 ms 87976 KB Output is correct
32 Correct 1453 ms 88924 KB Output is correct
33 Correct 315 ms 91220 KB Output is correct
34 Correct 314 ms 89960 KB Output is correct
35 Execution timed out 4034 ms 63828 KB Time limit exceeded
36 Halted 0 ms 0 KB -