結果
| 問題 |
No.1717 Levi-Civita Triangle
|
| コンテスト | |
| ユーザー |
suta28407928
|
| 提出日時 | 2021-10-22 22:54:49 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 36 ms / 2,000 ms |
| コード長 | 3,941 bytes |
| コンパイル時間 | 2,224 ms |
| コンパイル使用メモリ | 184,768 KB |
| 実行使用メモリ | 5,376 KB |
| 最終ジャッジ日時 | 2024-09-23 06:41:35 |
| 合計ジャッジ時間 | 3,801 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 42 |
ソースコード
#pragma GCC ta g("avx2")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
using namespace std;
#define DEBUG
#ifdef DEBUG
template <class T, class U>
ostream &operator<<(ostream &os, const pair<T, U> &p) {
os << '(' << p.first << ',' << p.second << ')';
return os;
}
template <class T> ostream &operator<<(ostream &os, const vector<T> &v) {
os << '{';
for(int i = 0; i < (int)v.size(); i++) {
if(i) { os << ','; }
os << v[i];
}
os << '}';
return os;
}
void debugg() { cerr << endl; }
template <class T, class... Args>
void debugg(const T &x, const Args &... args) {
cerr << " " << x;
debugg(args...);
}
#define debug(...) \
cerr << __LINE__ << " [" << #__VA_ARGS__ << "]: ", debugg(__VA_ARGS__)
#define dump(x) cerr << __LINE__ << " " << #x << " = " << (x) << endl
#else
#define debug(...) (void(0))
#define dump(x) (void(0))
#endif
using namespace std;
typedef long long ll;
typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef vector<char> vc;
typedef vector<string> vs;
typedef vector<bool> vb;
typedef vector<double> vd;
typedef pair<ll,ll> P;
typedef pair<int,int> pii;
typedef vector<P> vpl;
typedef tuple<ll,ll,ll> tapu;
#define rep(i,n) for(int i=0; i<(n); i++)
#define REP(i,a,b) for(int i=(a); i<(b); i++)
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
template<typename T1,typename T2> inline bool chmin(T1 &a,T2 b){
if(a>b){
a = b; return true;
}
else return false;
}
template<typename T1,typename T2> inline bool chmax(T1 &a,T2 b){
if(a<b){
a = b; return true;
}
else return false;
}
template<typename T> inline void print(T &a){
int sz = a.size();
for(auto itr = a.begin(); itr != a.end(); itr++){
cout << *itr;
sz--;
if(sz) cout << " ";
}
cout << "\n";
}
template<typename T1,typename T2> inline void print2(T1 a, T2 b){
cout << a << " " << b << "\n";
}
template<typename T1,typename T2,typename T3> inline void print3(T1 a, T2 b, T3 c){
cout << a << " " << b << " " << c << "\n";
}
void mark() {cout << "#" << "\n";}
ll pcount(ll x) {return __builtin_popcountll(x);}
//#include <atcoder/maxflow>
//using namespace atcoder;
const int inf = (1<<30)-1;
const ll linf = 1LL<<61;
const int MAX = 510000;
int dy[8] = {0,1,0,-1,1,-1,-1,1};
int dx[8] = {-1,0,1,0,1,-1,1,-1};
const double pi = acos(-1);
const double eps = 1e-9;
const int mod = 1e9 + 7;
//const int mod = 998244353;
vl A;
void f(int k){
if(k == 0){
int n = A.size();
vl a = A;
while((int)a.size() > 1){
n = a.size();
vl b(n-2);
rep(i,n-2){
if(a[i+1]%3 == (a[i]+1)%3 && a[i+2]%3 == (a[i+1]+1)%3){
b[i] = 1;
}else if(a[i+1]%3 == (a[i]+2)%3 && a[i+2]%3 == (a[i+1]+2)%3){
b[i] = 2;
}else{
b[i] = 0;
}
}
a = b;
}
if(a[0] != 0){
debug(A,a[0]);
}
}else{
rep(i,3){
A.push_back(i);
f(k-1);
A.pop_back();
}
}
}
int main(){
int n; cin >> n;
//f(n); 実験
int N = n*2+1;
vl a(N); rep(i,N) cin >> a[i];
if(a[0] == a[1]){
cout << 0 << endl;
return 0;
}
bool up = (a[0]+1)%3 == a[1];
for(int i=0; i<N-1; i+=2){
if(up){
if((a[i]+1)%3 == a[i+1] && (a[i+1]+1)%3 == a[i+2]){
up = false;
continue;
}
cout << 0 << endl;
return 0;
}else{
if(a[i] == (a[i+1]+1)%3 && a[i+1] == (a[i+2]+1)%3){
up = true;
continue;
}
cout << 0 << endl;
return 0;
}
}
if(!up) cout << 1 << endl;
else cout << 2 << endl;
}
suta28407928