Submission #295932

#	Time	Username	Problem	Language	Result	Execution time	Memory
295932		Gurban	Toy Train (IOI17_train)	C++17	0 / 100	111 ms	1400 KiB

train

#include "train.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define ss second
#define ff first
#define sz(a) int(a.size())
#define all(a) a.begin(),a.end()
typedef long double ld;
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<ll> vll;
const ll inf = 1e18;
const int mod = 1e9+7; //998244353;
const int maxn = 1e5+5;
const int Xg[4] = {1,0,-1,0}, Yg[4] = {0,1,0,-1};
ll modpw(ll a,ll e) {if(e==0)return 1;ll x=modpw(a*a%mod,e>>1);return e&1?x*a%mod:x;}

int N,M,vis[maxn];
int con[maxn],jog,jog1;

vi who_wins(vi a, vi r, vi u, vi v) {
	N = sz(r),M = sz(u);
	for(int i = 0;i < M;i++) con[u[i]]=v[i];
	vi ans;
	for(int i = 0;i < N;i++){
		memset(vis,0,sizeof(vis));
		int now=i; vis[i]=1;
		while(1){
			if(vis[con[now]] == 1){jog=con[now],jog1=now;break;};
			vis[now]=1;
			now=con[now];
		}
		bool tr=0;
		for(int j = jog;j != jog1;j=con[j]) if(r[j]) tr=1;
		if(r[jog1]) tr=1;
		ans.pb(tr);
	}
	return ans;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 11
• Subtask 4: 0 / 11
• Subtask 5: 0 / 12
• Subtask 6: 0 / 51