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Submission #612463

# Submission time Handle Problem Language Result Execution time Memory
612463 2022-07-29T15:29:29 Z MohamedAliSaidane Toy Train (IOI17_train) C++14
12 / 100
 1049 ms 1812 KB 
#include <bits/stdc++.h>
//#include "train.h"
    using namespace std;

    typedef long long ll;
    typedef double ld;
    typedef pair<int,int> pii;
    typedef pair<ll,ll> pll;

    typedef vector<int> vi;
    typedef vector<ll> vll;
    typedef vector<pii> vpi;
    typedef vector<pll> vpl;

    #define pb push_back
    #define popb pop_back
    #define all(x) (x).begin(),(x).end()

    #define ff first
    #define ss second

    const int nax = 5004;
    const int MOD = 1e9 + 7;

    int n, m ;
    vi adj[nax], rev_adj[nax];
    int cnt[nax], sz[nax];
    vi who_wins(vi a, vi r, vi u, vi v)
    {
        set<int> cur;
        n = a.size();
        m = u.size();
        int org;
        for(int i = 0 ; i < n; i++)
        {
            if(r[i])
            {
                cur.insert(i);
                org = i;
            }
        }
        for(int i=  0; i < m; i ++)
        {
            adj[u[i]].pb(v[i]);
            rev_adj[v[i]].pb(u[i]);
        }
        for(int i = 0 ; i < n; i ++ )
            sz[i] = (int)(adj[i].size());
        for(auto e: cur)
        {
            for(auto o: rev_adj[e])
                cnt[o]++;
        }
        for(int i = 0 ; i < n; i++)
        {
            set<int> nw;
            for(int j=  0; j < n; j ++)
            {
                if(cur.count(j) !=0 || nw.count(j) != 0)
                    continue;
                if(a[j])
                {
                    if(cnt[j] > 0)
                        nw.insert(j);
                }
                else
                {
                    if(cnt[j] == sz[j])
                        nw.insert(j);
                }
            }
            for(auto e: nw)
            {
                for(auto o: rev_adj[e])
                    cnt[o] ++ ;
                cur.insert(e);
            }
        }
        vi ans(n, 0);
        if(a[org])
        {
            if(cnt[org] > 0 )
            {
                for(auto e: cur)
                    ans[e] = 1;
            }
        }
        else
        {
            if(cnt[org] == sz[org])
                for(auto e: cur)
                    ans[e] = 1;
        }
        return ans;

    }

Compilation message

train.cpp: In function 'vi who_wins(vi, vi, vi, vi)':
train.cpp:90:34: warning: 'org' may be used uninitialized in this function [-Wmaybe-uninitialized]
   90 |             if(cnt[org] == sz[org])
      |                            ~~~~~~^

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 996 ms 1364 KB 3rd lines differ - on the 14th token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 468 KB 3rd lines differ - on the 1st token, expected: '0', found: '1'
2 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 1049 ms 1792 KB 3rd lines differ - on the 1st token, expected: '0', found: '1'
2 Halted 0 ms 0 KB -

Subtask #4
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 990 ms 1612 KB 3rd lines differ - on the 696th token, expected: '0', found: '1'
2 Halted 0 ms 0 KB -

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 978 ms 1688 KB Output is correct
2 Correct 1037 ms 1812 KB Output is correct
3 Correct 1038 ms 1756 KB Output is correct
4 Correct 985 ms 1700 KB Output is correct
5 Correct 1 ms 596 KB Output is correct
6 Correct 221 ms 1084 KB Output is correct
7 Correct 11 ms 1196 KB Output is correct
8 Correct 12 ms 1296 KB Output is correct
9 Correct 11 ms 1236 KB Output is correct
10 Correct 2 ms 724 KB Output is correct
11 Correct 21 ms 1168 KB Output is correct

Subtask #6
0 / 51.0

# Verdict Execution time Memory Grader output
1 Incorrect 996 ms 1364 KB 3rd lines differ - on the 14th token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -