oj.uz

Submission #286531

# Submission time Handle Problem Language Result Execution time Memory
286531 2020-08-30T14:06:59 Z stoyan_malinin Toy Train (IOI17_train) C++14
5 / 100
 10 ms 2236 KB 
#include "train.h"
//#include "grader.cpp"

#include <vector>
#include <assert.h>
#include <iostream>
#include <algorithm>
#include <functional>

using namespace std;

const int MAXN = 5005;

int n;
vector <int> adj[MAXN];
int owner[MAXN], charging[MAXN];

int guessSubtask(vector <int> a, vector <int> r, vector <int> u, vector <int> v)
{
    bool sub1 = true;
    for(int i = 0;i<u.size();i++)
    {
        if(u[i]!=v[i] && u[i]+1!=v[i])
        {
            sub1 = false;
            break;
        }
    }
    if(sub1==true) return 1;


}

vector <int> solve1()
{
    vector <int> res(n, -1);

    for(int s = 0;s<n;s++)
    {
        int x = s;
        while(true)
        {
            int goal = -1;
            if(owner[x]==1)
            {
                if(charging[x]==1) goal = x;
                else goal = x + 1;

                bool found = false;
                for(int y: adj[x])
                {
                    if(y==goal)
                    {
                        found =true;
                        break;
                    }
                }

                if(found==true)
                {
                    if(goal==x)
                    {
                        res[s] = true;
                        break;
                    }
                    else
                    {
                        x = x + 1;
                    }
                }
                else
                {
                    if(goal==x)
                    {
                        x = x + 1;
                    }
                    else
                    {
                        res[s] = false;
                        break;
                    }
                }
            }
            else
            {
                if(charging[x]==1) goal = x + 1;
                else goal = x;

                bool found = false;
                for(int y: adj[x])
                {
                    if(y==goal)
                    {
                        found =true;
                        break;
                    }
                }

                if(found==true)
                {
                    if(goal==x)
                    {
                        res[s] = false;
                        break;
                    }
                    else
                    {
                        x = x + 1;
                    }
                }
                else
                {
                    if(goal==x)
                    {
                        x = x + 1;
                    }
                    else
                    {
                        res[s] = true;
                        break;
                    }
                }
            }
        }
    }

    return res;
}

vector<int> who_wins(vector<int> a, vector<int> r, vector<int> u, vector<int> v)
{
    n = a.size();
    for(int i = 0;i<n;i++)
    {
        owner[i] = a[i];
        charging[i] = r[i];
    }

    for(int i = 0;i<u.size();i++)
    {
        adj[ u[i] ].push_back(v[i]);
    }

    for(int i = 0;i<n;i++)
    {
        sort(adj[i].begin(), adj[i].end());
        auto it = unique(adj[i].begin(), adj[i].end());
        adj[i].resize(it-adj[i].begin());
    }

    int subtask = guessSubtask(a, r, u, v);
    if(subtask==1) return solve1();

    assert(false);
}

Compilation message

train.cpp: In function 'int guessSubtask(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
train.cpp:21:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |     for(int i = 0;i<u.size();i++)
      |                   ~^~~~~~~~~
train.cpp: In function 'std::vector<int> who_wins(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
train.cpp:139:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  139 |     for(int i = 0;i<u.size();i++)
      |                   ~^~~~~~~~~
train.cpp: In function 'int guessSubtask(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
train.cpp:32:1: warning: control reaches end of non-void function [-Wreturn-type]
   32 | }
      | ^

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 896 KB Output is correct
2 Correct 5 ms 1024 KB Output is correct
3 Correct 5 ms 1024 KB Output is correct
4 Correct 5 ms 1024 KB Output is correct
5 Correct 5 ms 1024 KB Output is correct
6 Correct 7 ms 1024 KB Output is correct
7 Correct 5 ms 1024 KB Output is correct
8 Correct 5 ms 928 KB Output is correct
9 Correct 5 ms 1024 KB Output is correct
10 Correct 5 ms 1024 KB Output is correct
11 Correct 4 ms 896 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 640 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 1280 KB Output is correct
2 Correct 8 ms 1280 KB Output is correct
3 Correct 8 ms 1280 KB Output is correct
4 Incorrect 8 ms 1280 KB 3rd lines differ - on the 1st token, expected: '1', found: '0'
5 Halted 0 ms 0 KB -

Subtask #4
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 10 ms 1152 KB 3rd lines differ - on the 696th token, expected: '0', found: '1'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Runtime error 10 ms 2236 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #6
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 896 KB Output is correct
2 Correct 5 ms 1024 KB Output is correct
3 Correct 5 ms 1024 KB Output is correct
4 Correct 5 ms 1024 KB Output is correct
5 Correct 5 ms 1024 KB Output is correct
6 Correct 7 ms 1024 KB Output is correct
7 Correct 5 ms 1024 KB Output is correct
8 Correct 5 ms 928 KB Output is correct
9 Correct 5 ms 1024 KB Output is correct
10 Correct 5 ms 1024 KB Output is correct
11 Correct 4 ms 896 KB Output is correct
12 Runtime error 1 ms 640 KB Execution killed with signal 11
13 Halted 0 ms 0 KB -