結果

問題 No.483 マッチ並べ
ユーザー mai
提出日時 2017-02-10 23:53:11
言語 C++14
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 3 ms / 2,000 ms
コード長 2,697 bytes
コンパイル時間 2,015 ms
コンパイル使用メモリ 171,612 KB
実行使用メモリ 5,248 KB
最終ジャッジ日時 2024-12-29 11:23:30
合計ジャッジ時間 3,240 ms
ジャッジサーバーID
(参考情報)
judge1 / judge5
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 3
other AC * 53
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#include<bits/stdc++.h>
using namespace std;
typedef unsigned int uint;
typedef long long int ll;
typedef unsigned long long int ull;
#define debugv(v) printf("L%d %s => ",__LINE__,#v);for(auto e:v){cout<<e<<" ";}cout<<endl;
#define debugm(m) printf("L%d %s is..\n",__LINE__,#m);for(auto v:m){for(auto e:v){cout<<e<<" ";}cout<<endl;}
#define debuga(m,w) printf("L%d %s is => ",__LINE__,#m);for(int x=0;x<(w);x++){cout<<(m)[x]<<" ";}cout<<endl;
#define debugaa(m,w,h) printf("L%d %s is..\n",__LINE__,#m);for(int y=0;y<(h);y++){for(int x=0;x<(w);x++){cout<<(m)[x][y]<<" ";}cout<<endl;}
#define debugaar(m,w,h) printf("L%d %s is..\n",__LINE__,#m);for(int y=0;y<(h);y++){for(int x=0;x<(w);x++){cout<<(m)[y][x]<<" ";}cout<<endl;}
#define ALL(v) (v).begin(),(v).end()
#define BIGINT 0x7FFFFFFF
#define E107 1000000007ll
void printbit(int u){if(u==0)cout<<0;else{int s=0,k=0;for(;0<u;u>>=1,k++)s=(s<<1)|(u&1);for(;0<k--;s>>=1)cout<<(s&1);}}
#define TIME chrono::system_clock::now()
#define MILLISEC(t) (chrono::duration_cast<chrono::milliseconds>(t).count())
namespace{
std::chrono::system_clock::time_point t;
void tic(){t=TIME;}
void toc(){fprintf(stderr,"TIME : %lldms\n",MILLISEC(TIME-t));}
}
template<typename T1,typename T2>
ostream& operator <<(ostream &o,const pair<T1,T2> p){o<<"("<<p.first<<":"<<p.second<<")";return o;}
class UndirectedGraph{
public:
size_t n;
vector<vector<int>> vertex_to;
UndirectedGraph(size_t n):n(n),vertex_to(n){}
void connect(int from, int to){
vertex_to[from].emplace_back(to);
vertex_to[to].emplace_back(from);
}
vector<int>& operator[](int v){
return vertex_to[v];
}
void resize(size_t _n){
n = _n;
vertex_to.resize(_n);
}
size_t degree(int v){
return vertex_to[v].size();
}
};
int width,height;
int m,n;
UndirectedGraph graph(12000);
bool visited[12000];
int deg[5];
void dfs(int i){
if (visited[i]) return;
visited[i] = true;
++deg[graph.degree(i)];
for (int to : graph.vertex_to[i]){
dfs(to);
}
}
int main(){
int i,j,k;
int x,y,a,b;
cin >> n;
for (i=0;i<n;++i){
scanf("%d%d%d%d",&x,&y,&a,&b);
assert(0<=x && x<=100);
assert(0<=y && y<=100);
assert(0<=a && a<=100);
assert(0<=b && b<=100);
j = x+100*y;
k = a+100*b;
graph.connect(j,k);
}
for (i=0;i<12000;++i){
if (graph.degree(i) == 0) continue;
fill(deg,deg+5,0);
dfs(i);
if (deg[1] < 2*deg[4]+deg[3]){
cout << "NO" << endl;
return 0;
}
}
cout << "YES" << endl;
return 0;
}
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