oj.uz

Submission #778535

# Submission time Handle Problem Language Result Execution time Memory
778535 2023-07-10T11:47:53 Z I_Love_EliskaM_ Toy Train (IOI17_train) C++14
16 / 100
 824 ms 1736 KB 
#include "train.h"
#include <bits/stdc++.h>
using namespace std;
#define forn(i,n) for(int i=0;i<n;++i)
#define pb push_back
#define ll long long

vector<int> p1(vector<int>a,vector<int>r,vector<int>u,vector<int>v) {
	int n=a.size(), m=u.size();
	vector<int> s(n);
	vector<int> f(n);
	vector<int> ans(n);
	forn(i,m) if (u[i]==v[i]) s[u[i]]=1;
	forn(i,m) if (u[i]!=v[i]) f[u[i]]=1;
	int now=0;
	for (int i=n-1; i>=0; --i) {
		if (s[i]) {
			if (now) {
				if (!a[i]) {
					if (!r[i]) now=0;
				} else {
					if (f[i]) now=1;
					else now = r[i];
				}
			} else {
				if (a[i]) {
					if (r[i]) now=1;
				} else {
					if (f[i]) now=0;
					else now = r[i];
				}
			}
		}
		ans[i]=now;
	}
	return ans;
}

const int N=5555;
vector<int> adj[N];
int vis[N];
int ok[N];
int dfs(int u, int s) {
	if (vis[u] && u==s) return 1;
	if (vis[u]) return 0;
	vis[u]=1;
	int z=0;
	for(auto&v:adj[u]) z|=dfs(v,s);
	return z;
}
int dfs2(int u) {
	if (ok[u]) return 1;
	if (vis[u]) return 0;
	vis[u]=1;
	int z=0;
	for(auto&v:adj[u]) z|=dfs2(v);
	return z;
}
vector<int> p3(vector<int>a,vector<int>r,vector<int>u,vector<int>v) {
	int n=a.size(), m=u.size();
	vector<int> ans(n);
	forn(i,m) adj[u[i]].pb(v[i]);
	forn(i,n) if (r[i]) {
		forn(j,n) vis[j]=0;
		int q=dfs(i,i);
		ok[i]=q;
	}
	forn(i,n) {
		forn(j,n) vis[j]=0;
		int q=dfs2(i);
		ans[i]=q;
	}
	return ans;
}

int no[N];
int x=1;
int d[N], up[N];
void dfs3(int u, int l=-1) {
	//cout<<"! "<<u<<' '<<vis[u]<<' '<<x<<'\n';
	if (vis[u]) return;
	vis[u]=1;
	up[u]=N;
	for(auto&v:adj[u]) {
		if (!vis[v]) d[v]=d[u]+1;
		else up[u]=min(up[u],d[v]);
		dfs3(v,no[u]?d[u]:l);
		up[u]=min(up[u],up[v]);
	}
	ok[u]=up[u]>l;
}
vector<int> p4(vector<int>a,vector<int>r,vector<int>u,vector<int>v) {
	int n=a.size(), m=u.size();
	vector<int> ans(n);
	forn(i,m) adj[u[i]].pb(v[i]);
	forn(i,n) no[i]=r[i];
	forn(i,n) {
		forn(j,n) vis[j]=0;
		x=1;	
		dfs3(i);
		//cout<<"- "<<ok[i]<<'\n';
	}
	forn(i,n) ans[i]=!ok[i];
	return ans;
}

vector<int> who_wins(vector<int>a,vector<int>r,vector<int>u,vector<int>v) {

	int n=a.size(), m=u.size();
	int z=1;
	forn(i,m) z&=(u[i]==v[i]) || (v[i]==(u[i]+1));
	if (z) {
		return p1(a,r,u,v);
	}
	z=1;
	forn(i,n) z&=a[i];
	if (z) return p3(a,r,u,v);
	forn(i,n) z|=a[i];
	if (!z) return p4(a,r,u,v);
	exit(1);

}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 852 KB Output is correct
2 Correct 3 ms 852 KB Output is correct
3 Correct 3 ms 740 KB Output is correct
4 Correct 3 ms 852 KB Output is correct
5 Correct 3 ms 852 KB Output is correct
6 Correct 3 ms 740 KB Output is correct
7 Correct 3 ms 740 KB Output is correct
8 Correct 2 ms 852 KB Output is correct
9 Correct 3 ms 852 KB Output is correct
10 Correct 3 ms 768 KB Output is correct
11 Correct 2 ms 724 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 340 KB Execution failed because the return code was nonzero
2 Halted 0 ms 0 KB -

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 125 ms 1736 KB Output is correct
2 Correct 119 ms 1696 KB Output is correct
3 Correct 133 ms 1636 KB Output is correct
4 Correct 689 ms 1628 KB Output is correct
5 Correct 607 ms 1584 KB Output is correct
6 Correct 451 ms 1516 KB Output is correct
7 Correct 209 ms 1484 KB Output is correct
8 Correct 189 ms 1492 KB Output is correct
9 Correct 172 ms 1444 KB Output is correct
10 Correct 244 ms 1440 KB Output is correct
11 Correct 215 ms 1400 KB Output is correct
12 Correct 19 ms 1380 KB Output is correct
13 Correct 747 ms 1632 KB Output is correct
14 Correct 807 ms 1620 KB Output is correct
15 Correct 782 ms 1628 KB Output is correct
16 Correct 802 ms 1620 KB Output is correct
17 Correct 824 ms 1620 KB Output is correct
18 Correct 262 ms 1312 KB Output is correct

Subtask #4
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 809 ms 1508 KB 3rd lines differ - on the 1st token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Runtime error 4 ms 980 KB Execution failed because the return code was nonzero
2 Halted 0 ms 0 KB -

Subtask #6
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 852 KB Output is correct
2 Correct 3 ms 852 KB Output is correct
3 Correct 3 ms 740 KB Output is correct
4 Correct 3 ms 852 KB Output is correct
5 Correct 3 ms 852 KB Output is correct
6 Correct 3 ms 740 KB Output is correct
7 Correct 3 ms 740 KB Output is correct
8 Correct 2 ms 852 KB Output is correct
9 Correct 3 ms 852 KB Output is correct
10 Correct 3 ms 768 KB Output is correct
11 Correct 2 ms 724 KB Output is correct
12 Runtime error 1 ms 340 KB Execution failed because the return code was nonzero
13 Halted 0 ms 0 KB -