結果

問題 No.2910 単体ホモロジー入門
ユーザー anago-pie
提出日時 2024-10-15 20:41:57
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 2 ms / 2,000 ms
コード長 3,897 bytes
コンパイル時間 2,516 ms
コンパイル使用メモリ 210,816 KB
最終ジャッジ日時 2025-02-24 19:52:25
ジャッジサーバーID
(参考情報)
judge3 / judge1
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ファイルパターン 結果
other AC * 47
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;
#define rep(i, n) for(int i=0; i<n; i++)
#define debug 0
#define YES cout << "Yes" << endl;
#define NO cout << "No" << endl;
using ll = long long;
using ld = long double;
const int mod = 998244353;
const int MOD = 1000000007;
const double pi = atan2(0, -1);
const int inf = 1 << 31 - 1;
const ll INF = 1LL << 63 - 1;
#include <time.h>
#include <chrono>
//vector
template<typename T>
void printv(vector<T> v) {
for (int i = 0; i < v.size(); i++) {
cout << v[i];
if (i < v.size() - 1) {
cout << " ";
}
}
cout << endl;
}
//vector
template<typename T>
void print1(vector<T> v) {
for (auto x : v) {
cout << x << endl;
}
}
//
template<typename T>
void printvv(vector<vector<T>> vv) {
for (vector<T> v : vv) {
printv(v);
}
}
//vector
template<typename T>
void rsort(vector<T>& v) {
sort(v.begin(), v.end());
reverse(v.begin(), v.end());
}
//priority_queue
template<typename T>
struct rpriority_queue {
priority_queue<T, vector<T>, greater<T>> pq;
void push(T x) {
pq.push(x);
}
void pop() {
pq.pop();
}
T top() {
return pq.top();
}
size_t size() {
return pq.size();
}
bool empty() {
return pq.empty();
}
};
//mod mod
//a^n(mod ver.)
ll power(ll a, ll n) {
if (n == 0) {
return 1;
}
else if (n % 2 == 0) {
ll x = power(a, n / 2);
x *= x;
x %= mod;
return x;
}
else {
ll x = power(a, n - 1);
x *= a;
x %= mod;
return x;
}
}
//
ll modinv(ll p) {
return power(p, mod - 2) % mod;
}
//Mex
struct Mex {
map<int, int> mp;
set<int> s;
Mex(int Max) {
for (int i = 0; i <= Max; i++) {
s.insert(i);
}
}
int _mex = 0;
void Input(int x) {
mp[x]++;
s.erase(x);
if (_mex == x) {
_mex = *begin(s);
}
}
void Remove(int x) {
if (mp[x] == 0) {
cout << "Mex ERROR!: NO VALUE WILL BE REMOVED" << endl;
}
mp[x]--;
if (mp[x] == 0) {
s.insert(x);
if (*begin(s) == x) {
_mex = x;
}
}
}
int mex() {
return _mex;
}
};
//Union-Find
struct UnionFind {
vector<int> par;
UnionFind(int N) : par(N) {
for (int i = 0; i < N; i++) {
par[i] = -1;
}
}
//root(x):x
int root(int x) {
if (par[x] == -1) {
return x;
}
else {
return par[x] = root(par[x]);
}
}
//isSame(x,y):xytrue
bool isSame(int x, int y) {
if (root(x) == root(y)) {
return true;
}
else {
return false;
}
}
//Union(x,y):xy
void Union(int x, int y) {
int X = root(x);
int Y = root(y);
if (X == Y) {
return;
}
if (X < Y) {
swap(X, Y);
}
par[X] = Y;
}
};
//(
ll gcd(ll a, ll b) {
if (b > a) {
swap(a, b);
}
while (a % b != 0) {
ll t = a;
a = b;
b = t % b;
}
return b;
}
//gcd
ll lcm(ll a, ll b) {
ll g = gcd(a, b);
ll x = (a / g) * b;
return x;
}
int main() {
int N, M;
cin >> N >> M;
vector<set<int>> path(4);
rep(i, M) {
int u, v;
cin >> u >> v;
path[u].insert(v);
path[v].insert(u);
}
vector<int> a(3);
rep(i, 3) {
cin >> a[i];
}
sort(a.begin(), a.end());
bool ok = false;
rep(i, 4) {
for (int j = i + 1; j < 4; j++) {
for (int k = j + 1; k < 4; k++) {
if (path[i].count(j) && path[j].count(k) && path[k].count(i)) {
vector<int> v = { i,j,k };
if (a != v) {
ok = true;
}
}
}
}
}
vector<int> v = { 0,1,2,3 };
do {
if (path[v[0]].count(v[1]) && path[v[1]].count(v[2]) && path[v[2]].count(v[3]) && path[v[3]].count(v[0])) {
ok = true;
}
} while (next_permutation(v.begin(), v.end()));
if (ok) {
YES;
}
else {
NO;
}
}
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