oj.uz

Submission #871420

# Submission time Handle Problem Language Result Execution time Memory
871420 2023-11-10T19:17:16 Z andrei_boaca Stations (IOI20_stations) C++17
100 / 100
 564 ms 1820 KB 
#include "stations.h"
#include <bits/stdc++.h>
#include <vector>
//#include "stub.cpp"
using namespace std;
const int baza=1e8;
vector<int> muchii[1005];
int in[1005],out[1005],timp,niv[1005];
bool use[1005];
int n,k;
vector<int> L;
int ch,ind;
int lin[10005];
void dfs(int nod)
{
    timp++;
    lin[timp]=nod;
    in[nod]=timp;
    use[nod]=1;
    for(int i:muchii[nod])
        if(!use[i])
        {
            niv[i]=niv[nod]+1;
            dfs(i);
        }
    timp++;
    lin[timp]=nod;
    out[nod]=timp;
}
std::vector<int> label(int N, int K, std::vector<int> u, std::vector<int> v)
{
    n=N;
    k=K;
    L.clear();
    L.resize(n);
    timp=0;
    for(int i=0;i<n;i++)
    {
        use[i]=0;
        muchii[i].clear();
    }
    for(int i=0;i<u.size();i++)
    {
        int a=u[i];
        int b=v[i];
        muchii[a].push_back(b);
        muchii[b].push_back(a);
    }
    niv[0]=1;
    dfs(0);
    vector<int> ord;
    for(int i=1;i<=timp;i++)
    {
        int nod=lin[i];
        if(niv[nod]%2==1)
        {
            if(in[nod]==i)
                ord.push_back(nod);
        }
        if(niv[nod]%2==0)
        {
            if(out[nod]==i)
                ord.push_back(nod);
        }
    }
    for(int i=0;i<ord.size();i++)
        L[ord[i]]=i;
    return L;
}

int find_next_station(int s, int t, std::vector<int> c)
{
    if(c.size()==1)
        return c[0];
    if(c[0]>s)
    {
        for(int i=0;i+1<c.size();i++)
            if(s<=t&&t<=c[i])
                return c[i];
        return c.back();
    }
    else
    {
        for(int i=(int)c.size()-1;i>0;i--)
            if(c[i]<=t&&t<=s)
                return c[i];
        return c[0];
    }
}

Compilation message

stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:42:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |     for(int i=0;i<u.size();i++)
      |                 ~^~~~~~~~~
stations.cpp:66:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |     for(int i=0;i<ord.size();i++)
      |                 ~^~~~~~~~~~~
stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:77:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   77 |         for(int i=0;i+1<c.size();i++)
      |                     ~~~^~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 315 ms 936 KB Output is correct
2 Correct 259 ms 952 KB Output is correct
3 Correct 515 ms 696 KB Output is correct
4 Correct 392 ms 684 KB Output is correct
5 Correct 315 ms 844 KB Output is correct
6 Correct 255 ms 936 KB Output is correct
7 Correct 253 ms 684 KB Output is correct
8 Correct 1 ms 768 KB Output is correct
9 Correct 2 ms 1016 KB Output is correct
10 Correct 1 ms 772 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 245 ms 896 KB Output is correct
2 Correct 303 ms 828 KB Output is correct
3 Correct 518 ms 940 KB Output is correct
4 Correct 386 ms 684 KB Output is correct
5 Correct 341 ms 688 KB Output is correct
6 Correct 256 ms 688 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 307 ms 956 KB Output is correct
2 Correct 252 ms 940 KB Output is correct
3 Correct 498 ms 684 KB Output is correct
4 Correct 353 ms 684 KB Output is correct
5 Correct 339 ms 684 KB Output is correct
6 Correct 270 ms 932 KB Output is correct
7 Correct 239 ms 684 KB Output is correct
8 Correct 1 ms 760 KB Output is correct
9 Correct 2 ms 768 KB Output is correct
10 Correct 1 ms 764 KB Output is correct
11 Correct 343 ms 684 KB Output is correct
12 Correct 275 ms 1316 KB Output is correct
13 Correct 246 ms 1820 KB Output is correct
14 Correct 229 ms 684 KB Output is correct
15 Correct 33 ms 684 KB Output is correct
16 Correct 37 ms 868 KB Output is correct
17 Correct 65 ms 976 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 511 ms 684 KB Output is correct
2 Correct 468 ms 684 KB Output is correct
3 Correct 393 ms 684 KB Output is correct
4 Correct 2 ms 768 KB Output is correct
5 Correct 2 ms 768 KB Output is correct
6 Correct 0 ms 768 KB Output is correct
7 Correct 379 ms 800 KB Output is correct
8 Correct 564 ms 684 KB Output is correct
9 Correct 391 ms 688 KB Output is correct
10 Correct 393 ms 684 KB Output is correct
11 Correct 3 ms 772 KB Output is correct
12 Correct 2 ms 768 KB Output is correct
13 Correct 2 ms 768 KB Output is correct
14 Correct 1 ms 768 KB Output is correct
15 Correct 0 ms 768 KB Output is correct
16 Correct 281 ms 684 KB Output is correct
17 Correct 293 ms 684 KB Output is correct
18 Correct 293 ms 684 KB Output is correct
19 Correct 261 ms 684 KB Output is correct
20 Correct 297 ms 684 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 320 ms 956 KB Output is correct
2 Correct 237 ms 940 KB Output is correct
3 Correct 471 ms 684 KB Output is correct
4 Correct 350 ms 840 KB Output is correct
5 Correct 321 ms 684 KB Output is correct
6 Correct 260 ms 920 KB Output is correct
7 Correct 288 ms 684 KB Output is correct
8 Correct 1 ms 768 KB Output is correct
9 Correct 2 ms 768 KB Output is correct
10 Correct 0 ms 764 KB Output is correct
11 Correct 272 ms 896 KB Output is correct
12 Correct 303 ms 1116 KB Output is correct
13 Correct 517 ms 684 KB Output is correct
14 Correct 390 ms 684 KB Output is correct
15 Correct 341 ms 684 KB Output is correct
16 Correct 247 ms 684 KB Output is correct
17 Correct 313 ms 684 KB Output is correct
18 Correct 258 ms 1056 KB Output is correct
19 Correct 281 ms 1312 KB Output is correct
20 Correct 257 ms 684 KB Output is correct
21 Correct 33 ms 764 KB Output is correct
22 Correct 37 ms 940 KB Output is correct
23 Correct 60 ms 1216 KB Output is correct
24 Correct 4 ms 768 KB Output is correct
25 Correct 3 ms 768 KB Output is correct
26 Correct 2 ms 768 KB Output is correct
27 Correct 2 ms 1016 KB Output is correct
28 Correct 0 ms 768 KB Output is correct
29 Correct 291 ms 684 KB Output is correct
30 Correct 288 ms 684 KB Output is correct
31 Correct 299 ms 732 KB Output is correct
32 Correct 270 ms 684 KB Output is correct
33 Correct 311 ms 684 KB Output is correct
34 Correct 168 ms 932 KB Output is correct
35 Correct 242 ms 1088 KB Output is correct
36 Correct 255 ms 944 KB Output is correct
37 Correct 256 ms 1040 KB Output is correct
38 Correct 243 ms 1184 KB Output is correct
39 Correct 265 ms 1304 KB Output is correct
40 Correct 220 ms 1056 KB Output is correct
41 Correct 255 ms 1040 KB Output is correct
42 Correct 40 ms 872 KB Output is correct
43 Correct 57 ms 900 KB Output is correct
44 Correct 68 ms 916 KB Output is correct
45 Correct 85 ms 924 KB Output is correct
46 Correct 176 ms 880 KB Output is correct
47 Correct 161 ms 908 KB Output is correct
48 Correct 30 ms 1468 KB Output is correct
49 Correct 33 ms 1500 KB Output is correct