Submission #886019

#TimeUsernameProblemLanguageResultExecution timeMemory
886019waldiToy Train (IOI17_train)C++17
5 / 100
5 ms1372 KiB
#include "train.h"
#include <bits/stdc++.h>
#define FOR(i,p,k) for(int i=(p);i<=(k);++i)
#define REP(i,n) FOR(i,0,(n)-1)
#define ssize(x) (int((x).size()))
#define all(x) (x).begin(),(x).end()
using namespace std;

vector<int> who_wins(vector<int> a, vector<int> r, vector<int> u, vector<int> v){
	int n = ssize(a);
	int m = ssize(u);
	vector<int> ret(n);
	
	vector<vector<int>> g(n);
	REP(i, m) g[u[i]].emplace_back(v[i]);
	
	bool sciezka = 1;
	REP(i, m) if(u[i] != v[i] && v[i] != u[i]+1) sciezka = 0;
	if(sciezka){
		for(int i = n; ~--i;){
			bool petla = 0, dalej = 0;
			for(int j : g[i]){
				if(j == i) petla = 1;
				if(j == i+1) dalej = 1;
			}
			
			if(a[i]){
				ret[i] = 0;
				if(petla && r[i]) ret[i] |= 1;
				if(dalej) ret[i] |= ret[i+1];
			}
			else{
				ret[i] = 1;
				if(petla && !r[i]) ret[i] &= 0;
				if(dalej) ret[i] &= ret[i+1];
			}
		}
		return ret;
	}
	
	REP(i, n){
		
	}
	return ret;
}
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