oj.uz

답안 #531611

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
531611 2022-03-01T06:38:11 Z Koosha_mv Sailing Race (CEOI12_race) C++14
0 / 100
 277 ms 2556 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

const int N=505;

int n,k,ans,a[N],deg[N],dp[N][N],pd[N][N];
vector<int> g[N];

void calcdp(int u,int x){
	for(auto v : g[u]){
		int dist=(v-u+n)%n;
		if(dist<=x){
			maxm(dp[u][x],dp[v][x-dist]+1);
			maxm(dp[u][x],pd[v][dist-1]+1);
		}
	}
	maxm(ans,dp[u][x]+(k==1 && deg[u]));
	//cout<<"dp "<<u<<" "<<x<<" -> "<<dp[u][x]<<endl;
}
void calcpd(int u,int x){
	for(auto v : g[u]){
		int dist=(u-v+n)%n;
		if(dist<=x){
			maxm(pd[u][x],pd[v][x-dist]+1);
			maxm(pd[u][x],dp[v][dist-1]+1);
		}
	}
	maxm(ans,pd[u][x]+(k==1 && deg[u]));
	//cout<<"pd "<<u<<" "<<x<<" -> "<<pd[u][x]<<endl;
}

int main(){
	ios:: sync_with_stdio(0), cin.tie(0), cout.tie(0);
	cin>>n>>k;
	//if(k==1) assert(0);
	f(i,0,n){
		int x;
		cin>>x;
		while(x>0){
			deg[x-1]=1;
			g[i].pb(x-1);
			cin>>x;
		}
	}
	f(t,1,n){
		f(i,0,n){
			calcdp(i,t);
			calcpd(i,t);
		}
	}
	cout<<ans;
}
/*
7 1
5 0
5 0
7 0
3 0
4 0
4 3 0
2 1 0
*/

Subtask #1
0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 332 KB Unexpected end of file - int32 expected
2 Incorrect 1 ms 332 KB Unexpected end of file - int32 expected
3 Incorrect 1 ms 332 KB Unexpected end of file - int32 expected
4 Incorrect 1 ms 460 KB Unexpected end of file - int32 expected
5 Incorrect 1 ms 460 KB Unexpected end of file - int32 expected
6 Incorrect 2 ms 460 KB Unexpected end of file - int32 expected
7 Incorrect 3 ms 588 KB Unexpected end of file - int32 expected
8 Incorrect 2 ms 588 KB Unexpected end of file - int32 expected
9 Incorrect 5 ms 588 KB Unexpected end of file - int32 expected
10 Incorrect 13 ms 784 KB Unexpected end of file - int32 expected
11 Incorrect 7 ms 720 KB Unexpected end of file - int32 expected
12 Incorrect 17 ms 1164 KB Unexpected end of file - int32 expected
13 Incorrect 30 ms 1560 KB Unexpected end of file - int32 expected
14 Incorrect 47 ms 1868 KB Unexpected end of file - int32 expected
15 Incorrect 185 ms 2388 KB Unexpected end of file - int32 expected
16 Incorrect 240 ms 2532 KB Unexpected end of file - int32 expected
17 Incorrect 174 ms 2440 KB Unexpected end of file - int32 expected
18 Incorrect 64 ms 2352 KB Unexpected end of file - int32 expected
19 Incorrect 277 ms 2556 KB Unexpected end of file - int32 expected
20 Incorrect 264 ms 2544 KB Unexpected end of file - int32 expected