oj.uz

Submission #238723

# Submission time Handle Problem Language Result Execution time Memory
238723 2020-06-12T12:39:24 Z b00n0rp Meetings (JOI19_meetings) C++17
29 / 100
 635 ms 1400 KB 
#include <bits/stdc++.h>
#include "meetings.h"
using namespace std;
 
typedef long double LD;
typedef long long ll;
#define pb push_back
#define REP(i,n) for (int i = 0; i < n; i++)
#define FOR(i,a,b) for (int i = a; i < b; i++)
#define all(v) v.begin(),v.end()
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int,int> pii;
typedef vector<pii> vpii;
#define F first
#define S second
 
vi gg[2005];
vpii edges;

int globalu;

int quer = 0;

bool cmp(int x,int y){
	quer++;
	return Query(globalu,x,y) == x;
}

void dfs(int u){
	vi mkc;
	for(auto x:gg[u]) mkc.pb(x);
	gg[u].clear();
	if(mkc.size() == 0) return;
	if(mkc.size() == 1){
		edges.pb({u,mkc[0]});
		return;
	}
	int v = mkc[rand()%mkc.size()];
	vi path;
	for(auto x:mkc){
		if(x == v) continue;
		quer++;
		int lol = Query(u,v,x);
		if(lol == x) path.pb(x);
		else gg[lol].pb(x);
	}
	path.pb(v);
	globalu = u;
	sort(all(path),cmp);
	edges.pb({u,path[0]});
	REP(i,path.size()-1) edges.pb({path[i],path[i+1]});
	dfs(u);
	for(auto x:path) dfs(x);
}

void Solve(int n){
	int root = rand()%n;
	REP(i,n){
		if(i != root){
			gg[root].pb(i);
		}
	}
	dfs(root);
	for(auto x:edges){
		Bridge(min(x.F,x.S),max(x.F,x.S));
	}
	assert(quer <= 25000);
}

Compilation message

meetings.cpp: In function 'void dfs(int)':
meetings.cpp:8:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define REP(i,n) for (int i = 0; i < n; i++)
meetings.cpp:52:6:
  REP(i,path.size()-1) edges.pb({path[i],path[i+1]});
      ~~~~~~~~~~~~~~~                
meetings.cpp:52:2: note: in expansion of macro 'REP'
  REP(i,path.size()-1) edges.pb({path[i],path[i+1]});
  ^~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 4 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 4 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 4 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 12 ms 512 KB Output is correct
28 Correct 10 ms 512 KB Output is correct
29 Correct 11 ms 512 KB Output is correct
30 Correct 13 ms 512 KB Output is correct
31 Correct 9 ms 512 KB Output is correct
32 Correct 13 ms 496 KB Output is correct
33 Correct 20 ms 512 KB Output is correct
34 Correct 19 ms 512 KB Output is correct
35 Correct 20 ms 640 KB Output is correct
36 Correct 11 ms 512 KB Output is correct
37 Correct 17 ms 512 KB Output is correct
38 Correct 19 ms 512 KB Output is correct
39 Correct 21 ms 540 KB Output is correct

Subtask #4
0 / 71.0

# Verdict Execution time Memory Grader output
1 Correct 521 ms 760 KB Output is correct
2 Correct 583 ms 760 KB Output is correct
3 Correct 635 ms 760 KB Output is correct
4 Correct 550 ms 760 KB Output is correct
5 Correct 367 ms 800 KB Output is correct
6 Correct 374 ms 760 KB Output is correct
7 Runtime error 632 ms 1400 KB Execution killed with signal 11 (could be triggered by violating memory limits)
8 Halted 0 ms 0 KB -