oj.uz

Submission #581104

# Submission time Handle Problem Language Result Execution time Memory
581104 2022-06-22T09:14:44 Z Koosha_mv Toy Train (IOI17_train) C++14
0 / 100
 8 ms 2004 KB 
#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){
	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];
}

/*
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++)
......
   43 |  f(i,0,u.size()) g[u[i]].pb(v[i]);
      |    ~~~~~~~~~~~~                
train.cpp:43:2: note: in expansion of macro 'f'
   43 |  f(i,0,u.size()) g[u[i]].pb(v[i]);
      |  ^
train.cpp:48:1: warning: no return statement in function returning non-void [-Wreturn-type]
   48 | }
      | ^

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 5 ms 1364 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 596 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Runtime error 8 ms 2004 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #4
0 / 11.0

# Verdict Execution time Memory Grader output
1 Runtime error 6 ms 1748 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Runtime error 8 ms 2004 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #6
0 / 51.0

# Verdict Execution time Memory Grader output
1 Runtime error 5 ms 1364 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -