Submission #581108

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
581108	2022-06-22T09:16:38 Z	Koosha_mv	Toy Train (IOI17_train)	C++14	0 / 100	342 ms	1508 KB

train

#include <bits/stdc++.h>
using namespace std;
#define dbgv(v) cout<<#v<<" = "; f(i,0,v.size()) cout<<v[i]<<" "; cout<<endl
#define dbga(a,x,y) cout<<#a<<" = "; f(i,x,y) cout<<a[i]<<" "; cout<<endl
#define erorp(x) cout<<#x<<"={"<<x.F<<" , "<<x.S<<"}"<<endl
#define eror(x) cout<<#x<<'='<<(x)<<endl
#define f_(i,a,b) for(int i=a;i>=b;i--)
#define f(i,a,b) for(int i=a;i<b;i++)
#define nb(x) __builtin_popcount(x)
#define all(v) v.begin(),v.end()
#define bit(n,k) (((n)>>(k))&1)
#define Add(x,y) x=(x+y)%mod
#define maxm(a,b) a=max(a,b)
#define minm(a,b) a=min(a,b)
#define lst(x) x[x.size()-1]
#define sz(x) int(x.size())
#define mp make_pair
#define ll long long
#define pb push_back
#define S second
#define F first
#include "train.h"

const int N=5050;

int n,A[N],B[N],dp[N],vis[N];
vector<int> g[N];

bool dfs(int u,int rt){
	vis[u]=1;
	for(auto v : g[u]){
		if(v==rt) return 1;
		if(vis[v]) continue ;
		if(dfs(v,rt)) return 1;
	}
	return 0;
}
bool check(int u){
	fill(vis,vis+N,0);
	return dfs(u,u);
}
vector<int> who_wins(vector<int> a,vector<int> r,vector<int> u,vector<int> v){
	n=a.size();
	f(i,0,u.size()) g[u[i]].pb(v[i]);
	f(i,0,n) dp[i]=(r[i] && check(i));
	f(u,0,n) for(auto v : g[u]) dp[v]|=dp[u];
	vector<int> ans(n);
	f(i,0,n) ans[i]=dp[i];
	return ans;
}
/*
int32_t main(){
	ios:: sync_with_stdio(0), cin.tie(0), cout.tie(0);
	who_wins({1,1},{1,0},{0,0,1,1},{0,1,0,1});
}*/

Compilation message

train.cpp: In function 'std::vector<int> who_wins(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
train.cpp:8:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 | #define f(i,a,b) for(int i=a;i<b;i++)
......
   44 |  f(i,0,u.size()) g[u[i]].pb(v[i]);
      |    ~~~~~~~~~~~~                
train.cpp:44:2: note: in expansion of macro 'f'
   44 |  f(i,0,u.size()) g[u[i]].pb(v[i]);
      |  ^

Subtask #1
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	82 ms	1012 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	340 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	Correct	10 ms	1108 KB	Output is correct
2	Correct	21 ms	1368 KB	Output is correct
3	Correct	37 ms	1364 KB	Output is correct
4	Incorrect	105 ms	1508 KB	3rd lines differ - on the 5th token, expected: '1', found: '0'
5	Halted	0 ms	0 KB	-