oj.uz

Submission #660966

# Submission time Handle Problem Language Result Execution time Memory
660966 2022-11-23T18:23:18 Z urosk Toy Train (IOI17_train) C++14
11 / 100
 824 ms 1380 KB 
#include "train.h"
#define dbg(x) cerr<<#x<<": "<<x<<endl
#define here cerr<<"===================================\n"
#include <bits/stdc++.h>
#define ll int
#define sz(a) (ll)(a.size())
#define pb push_back
#define popb pop_back
#define all(a) a.begin(),a.end()
#define llinf 1000000000LL
#define fi first
#define sc second
#define pll pair<ll,ll>
#define endl '\n'
#define ceri(a,l,r) {cerr<<#a<<": ";for(ll i_ = l;i_<=r;i_++) cerr<<a[i_]<< " ";cerr<<endl;}
using namespace std;
#define maxn 5005
ll n,m,it;
vector<ll> ans;
vector<ll> g[maxn];
vector<ll> cur;
bool c[maxn];
bool vis[maxn];
bool naso = 0;
bool ok[maxn];
ll cnt = 0;
ll in[maxn],out[maxn];
void dfs(ll u,ll poc){
    vis[u] = 1;
    for(ll s : g[u]){
        if(c[s]) continue;
        if(s==poc){
            naso = 1;
            return;
        }
        if(vis[s]) continue;
        dfs(s,poc);
        if(naso) return;
    }
}
void dfs2(ll u,ll poc){
    if(c[u]) cnt++;
    vis[u] = 1;
    for(ll s : g[u]){
        if(s==poc&&cnt){
            naso = 1;
            return;
        }
        if(vis[s]) continue;
        dfs(s,poc);
        if(naso) return;
    }
    if(c[u]) cnt--;
}
void dfs3(ll u){
    vis[u] = 1;
    for(ll s : g[u]){
        if(vis[s]) continue;
        dfs3(s);
        ok[u]|=ok[s];
    }
}
vector<int> who_wins(vector<int> a,vector<int> r,vector<int> u,vector<int> v) {
    reverse(all(u)); u.pb(-1); reverse(all(u));
    reverse(all(v)); v.pb(-1); reverse(all(v));
    reverse(all(r)); r.pb(-1); reverse(all(r));
    ll sum = 0; for(ll x : a) sum+=x;
    n = sz(a);
    m = sz(u)-1;
    for(ll i = 1;i<=n;i++) c[i] = r[i];
    for(ll i = 1;i<=m;i++){
        u[i]++; v[i]++;
        ll x = u[i]; ll y = v[i];
        g[x].pb(y);
    }
    if(sum==0){
        for(ll i = 1;i<=n;i++){
            if(c[i]) continue;
            for(ll j = 1;j<=n;j++) vis[j] = 0;
            naso = 0;
            dfs(i,i);
            if(naso) ok[i] = 1;
        }
        for(ll i = 1;i<=n;i++){
            for(ll j = 1;j<=n;j++) vis[j] = 0;
            dfs3(i);
        }
        for(ll i = 1;i<=n;i++) ans.pb(1^ok[i]);
        return ans;
    }
    if(sum==n){
        for(ll i = 1;i<=n;i++){
            for(ll j = 1;j<=n;j++) vis[j] = 0;
            naso = 0;
            cnt = 0;
            dfs2(i,i);
            if(naso) ok[i] = 1;
        }
        for(ll i = 1;i<=n;i++){
            for(ll j = 1;j<=n;j++) vis[j] = 0;
            dfs3(i);
        }
        for(ll i = 1;i<=n;i++) ans.pb(ok[i]);
        return ans;
    }
	return {};
}

/*
4 6
0 0 0 0
0 1 0 0
0 1
0 2
0 3
1 2
1 3
2 3
*/

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 724 KB WA in grader: Wrong returned array size
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 340 KB WA in grader: Wrong returned array size
2 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 204 ms 1380 KB 3rd lines differ - on the 1st token, expected: '0', found: '1'
2 Halted 0 ms 0 KB -

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 662 ms 1064 KB Output is correct
2 Correct 186 ms 1000 KB Output is correct
3 Correct 356 ms 1060 KB Output is correct
4 Correct 361 ms 1108 KB Output is correct
5 Correct 497 ms 1064 KB Output is correct
6 Correct 423 ms 1052 KB Output is correct
7 Correct 445 ms 1032 KB Output is correct
8 Correct 311 ms 1100 KB Output is correct
9 Correct 22 ms 980 KB Output is correct
10 Correct 818 ms 1272 KB Output is correct
11 Correct 824 ms 1256 KB Output is correct
12 Correct 817 ms 1268 KB Output is correct
13 Correct 639 ms 1136 KB Output is correct
14 Correct 393 ms 1036 KB Output is correct

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 980 KB WA in grader: Wrong returned array size
2 Halted 0 ms 0 KB -

Subtask #6
0 / 51.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 724 KB WA in grader: Wrong returned array size
2 Halted 0 ms 0 KB -