結果
問題 | No.488 四角関係 |
ユーザー |
|
提出日時 | 2019-02-02 15:55:05 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 5 ms / 5,000 ms |
コード長 | 3,030 bytes |
コンパイル時間 | 1,538 ms |
コンパイル使用メモリ | 167,788 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-11-27 19:05:34 |
合計ジャッジ時間 | 2,591 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 22 |
ソースコード
#include "bits/stdc++.h" using namespace std; /* macro */ #define rep(i,a,b) for(int i=a;i<b;i++) #define revrep(i,a,b) for(int i = a; i > b; i--) #define int long long #define exist(s,e) ((s).find(e)!=(s).end()) #define all(v) (v).begin(), (v).end() #define each(s,itr) for(auto (itr) = s.begin(); (itr) != s.end(); (itr)++) #define sum(v) accumulate(all(v), (0LL)) #define isin(a, b, c) (b <= a && a <= c) #define println cout << "\n"; #define sz(v) (int)v.size() /* alias */ template<class T> using vec = vector<T>; typedef vector<int> vi; typedef pair<int, int> pi; typedef tuple<int, int, int> ti; /* constant */ const int inf = 1LL << 62; //const int mod = 1e9 + 7; const int dx[8]={1,0,-1,0,-1,1,-1,1}; const int dy[8]={0,1,0,-1,-1,-1,1,1}; const string alphabet = "abcdefghijklmnopqrstuvwxyz"; /* io_method */ int input(){int tmp;cin >> tmp;return tmp;} string raw_input(){string tmp;cin >> tmp;return tmp;} template<class T> void printx(T n){cout << n;} template<class T, class U> void printx(pair<T, U> p){cout << "(" << p.first << "," << p.second << ")";} template<class T, class U, class V> void printx(tuple<T, U, V> t){cout << "{" << get<0>(t) << "," << get<1>(t) <<"," << get<2>(t) << "}" << endl;} template<class T> void printx(vector<T> v){cout << "{";rep(i,0,v.size()){printx(v[i]);if(i != v.size()-1)printx(",");}cout << "}";} template<class T> void print(T n){printx(n);cout << endl;} template<class T> void print(set<T> s){cout << "{";each(s, e){if(e != s.begin()) printx(",");printx(*e);}cout << "}" << endl;} template<class T, class U> void print(map<T, U> mp){cout << "{";each(mp, e){cout << "(" << e -> first << "," << e -> second << ")";}cout << "}" << endl;} /* general_method */ template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; } template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; } template<class T>T cut(T &a, int l, int r){return T(a.begin()+l, a.begin()+r);} template<class T>bool isunique(vector<T> v){ set<T> s; rep(i,0,sz(v)){ if(not exist(s, v[i])){ s.insert(v[i]); }else{ return false; } } return true; } /* main */ int n, m; bool edges[51][51]; void in(){ cin >> n >> m; memset(edges, false, sizeof(edges)); rep(i,0,m){ int f, t; cin >> f >> t; edges[f][t] = true; edges[t][f] = true; } } bool isok(int a, int b, int c, int d){ if(edges[a][b] && edges[b][c] && edges[c][d] && edges[d][a] && not edges[a][c] && not edges[b][d]) return true; else return false; } void solve(){ int cnt = 0; rep(i,0,n){ rep(j,i + 1, n){ rep(k,j + 1, n){ rep(l, k + 1, n){ if(isok(i,j,k,l) or isok(i,j,l,k) or isok(i,l,j,k)){ cnt++; } } } } } print(cnt); } signed main(){ cin.tie(0); ios::sync_with_stdio(false); in(); solve(); }