oj.uz

답안 #250359

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
250359 2020-07-17T14:39:43 Z AmineWeslati Semiexpress (JOI17_semiexpress) C++14
0 / 100
 1000 ms 1792 KB 
//Never stop trying
#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
#define boost ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)

typedef string str;
typedef long long ll;
#define int ll
typedef double db;
typedef long double ld;

typedef pair<int,int> pi;
#define fi first
#define se second

typedef vector<int> vi;
typedef vector<ld> vd;
typedef vector<str> vs;
typedef vector<pi> vpi;

#define pb push_back
#define eb emplace_back
#define pf push_front

#define lb lower_bound
#define ub upper_bound

#define sz(x) (int)x.size()
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
#define endl "\n"

const int MOD = 1e9+7; //998244353
const ll INF = 1e18;
const int nx[4]={0,0,1,-1}, ny[4]={1,-1,0,0}; //right left down up

void IO(){
#ifndef ONLINE_JUDGE 
    freopen("input.txt", "r", stdin); 
    freopen("output.txt", "w", stdout); 
#endif 
}

int32_t main(){
   boost;
   //IO();

   int N,M,K; cin>>N>>M>>K;
   int A,B,C; cin>>A>>B>>C;
   bool taken[N+1]={false};
   int T; cin>>T;
   vi vec(M); for(int i=0; i<M; i++){cin>>vec[i];  taken[vec[i]]=true;}

   int adj[N+1][N+1];
   for(int i=0; i<=N; i++) for(int j=0; j<=N; j++) adj[i][j]=INF;
   for(int i=1; i<N; i++){
   	adj[i][i+1]=A;
   }	

   for(int i=0; i<M-1; i++){
   	int s=vec[i],e=vec[i+1];
   	adj[s][e]=min(adj[s][e],(e-s)*B);
   } 

   int res=0;
   for(int i=1; i<=N; i++) for(int j=1; j<=N; j++) if(i!=j && !taken[i] && !taken[j]){
   	vi vv; vv.assign(all(vec));
   	vv.pb(i); vv.pb(j);
   	sort(all(vv));

   	int adjj[N+1][N+1]; 
   	for(int i=1; i<=N; i++) for(int j=1; j<=N; j++) adjj[i][j]=adj[i][j];
   	for(int i=0; i<sz(vv)-1; i++){
   		int s=vv[i],e=vv[i+1];
   		adjj[s][e]=min(adjj[s][e],(e-s)*C);
   	}

   	/*for(int i=1; i<=N; i++){for(int j=1; j<=N; j++) cout << adjj[i][j] << ' '; cout << endl;}
   		cout << endl;*/

   	int dist[N+1];
   	for(int i=0; i<=N; i++) dist[i]=INF;
   	priority_queue<pi,vpi,greater<pi>> q; q.push({1,0});
   	dist[1]=0;
   	while(!q.empty()){
   		int u=q.top().fi, d=q.top().se;
   		q.pop();
   		if(dist[u]<d) continue;
   		for(int v=1; v<=N; v++) if(adjj[u][v]!=INF && dist[v]>dist[u]+adjj[u][v]){
   			dist[v]=dist[u]+adjj[u][v];
   			q.push({v,dist[v]});
   		}
   	}

   	//for(int i=1; i<=N;i++) cotu 
   	int cnt=0;
   	for(int i=2; i<=N;i++) if(dist[i]<=T) cnt++;
   	res=max(res,cnt);
   }
   cout << res << endl;



   return 0;
}

Compilation message

semiexpress.cpp: In function 'void IO()':
semiexpress.cpp:40:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     freopen("input.txt", "r", stdin); 
     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
semiexpress.cpp:41:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     freopen("output.txt", "w", stdout); 
     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1088 ms 1792 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1088 ms 1792 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 52.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1088 ms 1792 KB Time limit exceeded
2 Halted 0 ms 0 KB -