oj.uz

답안 #79044

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
79044 2018-10-11T00:33:52 Z psmao Sailing Race (CEOI12_race) C++14
0 / 100
 148 ms 2992 KB 
#include <bits/stdc++.h>
using namespace std;

#define fo(i,s,t) for(int i = s; i <= t; ++ i)
#define fd(i,s,t) for(int i = s; i >= t; -- i)
#define bf(i,s) for(int i = head[s]; i; i = e[i].next)
#define mp make_pair
#define fi first
#define se second
#define pii pair<int,int>
#define pb push_back
#define VI vector<int>
#define sf scanf
#define pf printf
#define fp freopen
#define SZ(x) ((int)(x).size())
#ifdef MPS
#define D(x...) printf(x)
#else
#define D(x...)
#endif
typedef long long ll;
typedef double db;
typedef unsigned long long ull;
const int inf = 1<<30;
const ll INF = 1ll<<60;
const db Inf = 1e20;
const db eps = 1e-9;

void gmax(int &a,int b){a = (a > b ? a : b);}
void gmin(int &a,int b){a = (a < b ? a : b);}

const int maxn = 505;

int f[maxn][maxn], g[maxn][maxn], n, sub;
VI adj[maxn];

int main()
{
	#ifdef MPS
		fp("1.in","r",stdin);
		fp("1.out","w",stdout);
		db mps = clock();
	#endif
	sf("%d%d",&n,&sub);
	fo(i,1,n)
	{
		int x;
		while(1)
		{
			sf("%d",&x);
			if(!x) break;
			adj[i].pb(x);
		}
	}
	fo(len,2,n)
	{
		fo(i,1,n-len+1)
		{
			int j = i+len-1;
			for(auto k : adj[i])
			{
				if(k >= i && k < j) 
					gmax(f[i][j], 1 + max(f[k][j], g[k][i]));
				if(!(k > i && k <= j))
					gmax(g[i][j], 1 + max(g[k][j], f[k][i]));
			}
			for(auto k : adj[j])
			{
				if(!(k > i && k <= j))
					gmax(f[j][i], 1 + max(f[k][i], g[k][j]));
				if(k >= i && k < j)
					gmax(g[j][i], 1 + max(g[k][i], f[k][j]));
			}
		}
	}
	int ans = 0, target;
	fo(s,1,n) 
		for(auto t : adj[s])
		{
			if(max(f[s][t], g[s][t]) + 1 > ans)
			{
				ans = max(f[s][t], g[s][t]);
				target = s;
			}
			// gmax(ans, max(f[s][t], g[s][t]));
		}
	pf("%d\n%d\n",ans,target);
	#ifdef MPS
		pf("Time Elapsed: %.3fms\n",clock()-mps);
	#endif
	return 0;
}

Compilation message

race.cpp: In function 'int main()':
race.cpp:45:4: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  sf("%d%d",&n,&sub);
    ^
race.cpp:51:6: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    sf("%d",&x);
      ^

Subtask #1
0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 376 KB Output isn't correct
2 Incorrect 2 ms 508 KB Output isn't correct
3 Incorrect 3 ms 508 KB Output isn't correct
4 Incorrect 2 ms 688 KB Output isn't correct
5 Incorrect 3 ms 688 KB Output isn't correct
6 Incorrect 3 ms 748 KB Output isn't correct
7 Incorrect 4 ms 792 KB Output isn't correct
8 Incorrect 3 ms 964 KB Output isn't correct
9 Incorrect 4 ms 972 KB Output isn't correct
10 Incorrect 8 ms 972 KB Output isn't correct
11 Incorrect 5 ms 972 KB Output isn't correct
12 Incorrect 11 ms 1360 KB Output isn't correct
13 Incorrect 21 ms 1744 KB Output isn't correct
14 Incorrect 36 ms 2260 KB Output isn't correct
15 Incorrect 98 ms 2664 KB Output isn't correct
16 Incorrect 125 ms 2832 KB Output isn't correct
17 Incorrect 96 ms 2832 KB Output isn't correct
18 Incorrect 41 ms 2832 KB Output isn't correct
19 Incorrect 145 ms 2832 KB Output isn't correct
20 Incorrect 148 ms 2992 KB Output isn't correct