oj.uz

Submission #732087

# Submission time Handle Problem Language Result Execution time Memory
732087 2023-04-28T11:10:54 Z sentheta Airline Route Map (JOI18_airline) C++17
0 / 100
 606 ms 45928 KB 
#include "Alicelib.h"
#include <cstdio>
// author : sentheta aka vanwij
#include<iostream>
#include<iomanip>
#include<algorithm>
#include<cassert>
#include<random>
#include<chrono>
#include<cmath>
#include<string>
#include<vector>
#include<bitset>
#include<queue>
#include<stack>
#include<map>
#include<set>
using namespace std;

#define Int long long
#define V vector
#define pii pair<int,int>
#define ff first
#define ss second

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

#define pow2(x) (1LL<<(x))
#define msb(x) (63-__builtin_clzll(x))
#define bitcnt(x) (__builtin_popcountll(x))

#define nl '\n'
#define _ << ' ' <<
#define all(x) (x).begin(), (x).end()
#define rep(i,a,b) for(int i = (int)(a); i < (int)(b); i++)
#define dbg(x) if(1) cout << "?" << #x << " : " << (x) << endl << flush;


set<pii> AliceAns;
void AliceMake(int u,int v){
	AliceAns.insert({u,v});
}
void AliceFinish(int n){
	InitG(1+n+10+1, (int)AliceAns.size());
	int i = 0;
	for(auto[u,v] : AliceAns){
		MakeG(i++, u,v);
	}
}

void Alice(int n,int m,int u[],int v[]){
	int k = 10;

	rep(i,0,m){
		u[i]++; v[i]++;
		AliceMake(u[i],v[i]);
	}

	int a = 0;
	// connect 2^i to a and nodes with ith-bit ON
	rep(i,0,k){
		int vtx = n+1+i;
		AliceMake(a,vtx);

		for(int j=1; j<=n; j++) if(j&1<<i){
			AliceMake(vtx, j);
		}
	}

	// connect b to all except a and 2^0
	int b = n+11;
	for(int i=0; i<=n+10; i++) if(i!=n+1){
		AliceMake(b, i);
	}

	AliceFinish(n);
	return; InitG(3,2); MakeG(0,1,2); MakeG(1,1,3);
}


#include "Boblib.h"
#include <cstdio>
// author : sentheta aka vanwij
#include<iostream>
#include<iomanip>
#include<algorithm>
#include<cassert>
#include<random>
#include<chrono>
#include<cmath>
#include<string>
#include<vector>
#include<bitset>
#include<queue>
#include<stack>
#include<map>
#include<set>
using namespace std;

#define Int long long
#define V vector
#define pii pair<int,int>
#define ff first
#define ss second

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

#define pow2(x) (1LL<<(x))
#define msb(x) (63-__builtin_clzll(x))
#define bitcnt(x) (__builtin_popcountll(x))

#define nl '\n'
#define _ << ' ' <<
#define all(x) (x).begin(), (x).end()
#define rep(i,a,b) for(int i = (int)(a); i < (int)(b); i++)
#define dbg(x) if(1) cout << "?" << #x << " : " << (x) << endl << flush;

set<pii> BobAns;
void BobMake(int u,int v){
	BobAns.insert({u,v});
}
void BobFinish(int n){
	InitMap(n, (int)BobAns.size());
	for(auto[u,v] : BobAns){
		MakeMap(u-1, v-1);
	}
}

const int N = 1069;
V<int> adj[N];
bool g[N][N];

int two[10];
int ori[N];

void Bob(int ntot,int m,int u[],int v[]){
	int k = 10, n = ntot-12;
	rep(i,0,N){
		adj[i].clear();
		rep(j,0,N) g[i][j] = 0;
	}
	rep(i,0,m){
		adj[u[i]].push_back(v[i]);
		adj[v[i]].push_back(u[i]);
		g[u[i]][v[i]] = g[v[i]][u[i]] = 1;
	}

	// find node with degree ntot-3
	int b = 0;
	while((int)adj[b].size()!=ntot-3) b++;

	// find two nodes disconnected from b
	V<int> a0;
	rep(i,0,ntot) if(i!=b && !g[i][b]){
		a0.push_back(i);
	}

	// determine a and 2^0
	int a=a0[0], two0=a0[1];
	bool ok = (int)adj[a].size()==k;
	if(ok){
		V<int>&vec = adj[a];
		sort(all(vec));

		// find permutation such that it makes a line
		bool foundPerm = 0;
		do{
			bool isLine = 1;
			rep(i,1,vec.size()){
				isLine &= g[vec[i-1]][vec[i]];
			}
			if(isLine){
				foundPerm = 1;
				break;
			}
		}while(next_permutation(all(vec)));
		ok &= foundPerm;
	}
	if(!ok) swap(a, two0);
	rep(i,0,k){
		two[i] = adj[a][i];
	}

	// recover nodes
	rep(i,0,ntot){
		// check importance
		bool flag = i==a || i==b;
		rep(j,0,k) flag |= i==two[j];
		if(flag) continue;
		ori[i] = 0;

		rep(j,0,k) if(g[i][two[j]]){
			ori[i] ^= 1<<j;
		}
	}

	// recover edges
	rep(i,0,m){
		// check importance
		bool flag = 0;
		flag = u[i]==a || u[i]==b;
		rep(j,0,k) flag |= u[i]==two[j];
		flag = v[i]==a || v[i]==b;
		rep(j,0,k) flag |= v[i]==two[j];
		if(flag) continue;

		BobMake(ori[u[i]],ori[v[i]]);
	}

	BobFinish(n);
	return; InitMap(3,2); MakeMap(1,2); MakeMap(1,3);
}

Subtask #1
0 / 22.0

# Verdict Execution time Memory Grader output
1 Runtime error 6 ms 7968 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Runtime error 6 ms 7968 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #3
0 / 63.0

# Verdict Execution time Memory Grader output
1 Incorrect 606 ms 45928 KB Wrong Answer [11]
2 Halted 0 ms 0 KB -