제출 #783719

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
783719		PoonYaPat	항공 노선도 (JOI18_airline)	C++14	0 / 100	3048 ms	29224 KiB

Alice

#include "Alicelib.h"
#include <bits/stdc++.h>
using namespace std;
typedef pair<int,int> pii;

void Alice( int n, int m, int A[], int B[] ){
	vector<pii> v;
	for (int i=0; i<n; ++i) v.push_back({n,i});
	for (int i=n+1; i<=n+11; ++i) v.push_back({i-1,i});
	for (int i=0; i<n; ++i) {
		for (int j=0; j<10; ++j) {
			if (i&(1<<j)) v.push_back({i,n+2+j});
		}
	}
	for (int i=0; i<m; ++i) v.push_back({A[i],B[i]});
	InitG(n+12,v.size());
	for (int i=0; i<v.size(); ++i) MakeG(i,v[i].first,v[i].second);
}

Bob

#include "Boblib.h"
#include <bits/stdc++.h>
using namespace std;
typedef pair<int,int> pii;

int st,nx,re[1020];
vector<int> adj[1020];
bool mark[1020];

void dfs(int x, int par, int val) {
	int nxt=-1;
	for (auto s : adj[x]) {
		if (s==par) continue;
		if (mark[s]) re[s]+=val;
		else nxt=s;
	}
	if (nxt!=-1) dfs(nxt,x,val*2);
}

void Bob(int n, int m, int C[], int D[] ){
	vector<pii> v;
	for (int i=0; i<m; ++i) {
		adj[C[i]].push_back(D[i]);
		adj[D[i]].push_back(C[i]);
	}
	for (int i=0; i<n; ++i) if (adj[i].size()==n-11) st=i;

	for (auto s : adj[st]) mark[s]=true;
	assert(adj[st].size()==n-11);
	for (auto s : adj[st]) {
		if (adj[s].size()==1) continue;
		mark[s]=false;
		for (auto k : adj[s]) mark[s]|=mark[k];
		if (!mark[s]) nx=s;
	}

	for (auto s : adj[nx]) {
		if (s!=st) dfs(s,nx,1);
	}

	for (int i=0; i<m; ++i) {
		if (mark[C[i]] && mark[D[i]]) {
			v.push_back({re[C[i]],re[D[i]]});
		}
	}

	InitMap(n-12,v.size());
	for (auto s : v) MakeMap(s.first,s.second);
}

컴파일 시 표준 에러 (stderr) 메시지

Alice.cpp: In function 'void Alice(int, int, int*, int*)':
Alice.cpp:17:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |  for (int i=0; i<v.size(); ++i) MakeG(i,v[i].first,v[i].second);
      |                ~^~~~~~~~~

Bob.cpp: In function 'void Bob(int, int, int*, int*)':
Bob.cpp:26:43: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   26 |  for (int i=0; i<n; ++i) if (adj[i].size()==n-11) st=i;
      |                              ~~~~~~~~~~~~~^~~~~~
In file included from /usr/include/c++/10/cassert:44,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33,
                 from Bob.cpp:2:
Bob.cpp:29:23: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   29 |  assert(adj[st].size()==n-11);
      |         ~~~~~~~~~~~~~~^~~~~~

• Subtask 1: 0 / 22
• Subtask 2: 0 / 15
• Subtask 3: 0 / 63