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Submission #4206062
Source Code Expand
#include<bits/stdc++.h>
#define rep(i,a,b) for(int i=a;i<b;i++)
#define rrep(i,a,b) for(int i=a;i>=b;i--)
#define fore(i,a) for(auto &i:a)
#define all(x) (x).begin(),(x).end()
//#pragma GCC optimize ("-O3")
using namespace std; void _main(); int main() { cin.tie(0); ios::sync_with_stdio(false); _main(); }
typedef long long ll; const int inf = INT_MAX / 2; const ll infl = 1LL << 60;
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; }
//---------------------------------------------------------------------------------------------------
struct UnionFind {
vector<int> par; // uf(x,y)->y
UnionFind() {}
UnionFind(int NV) { init(NV); }
void init(int NV) { par.clear(); rep(i, 0, NV) par.push_back(i); }
void reset() { rep(i, 0, par.size()) par[i] = i; }
int operator[](int x) { return par[x] == x ? x : par[x] = operator[](par[x]); }
void operator()(int x, int y) { x = operator[](x); y = operator[](y); if (x != y) par[x] = y; }
};
/*---------------------------------------------------------------------------------------------------
∧_∧
∧_∧ (´<_` ) Welcome to My Coding Space!
( ´_ゝ`) / ⌒i
/ \ | |
/ / ̄ ̄ ̄ ̄/ |
__(__ニつ/ _/ .| .|____
\/____/ (u ⊃
---------------------------------------------------------------------------------------------------*/
int E[4][4];
//---------------------------------------------------------------------------------------------------
void _main() {
rep(i, 0, 3) {
int a, b; cin >> a >> b;
a--; b--;
E[a][b] = E[b][a] = 1;
}
vector<int> ord;
rep(i, 0, 4) ord.push_back(i);
do {
int ng = 0;
rep(j, 0, 3) if (!E[ord[j]][ord[j + 1]]) ng = 1;
if(!ng) {
printf("YES\n");
return;
}
} while(next_permutation(all(ord)));
printf("NO\n");
}
Submission Info
| Submission Time | |
|---|---|
| Task | B - Path |
| User | hamayanhamayan |
| Language | C++14 (GCC 5.4.1) |
| Score | 200 |
| Code Size | 2228 Byte |
| Status | AC |
| Exec Time | 1 ms |
| Memory | 256 KiB |
Judge Result
| Set Name | Sample | All | ||||
|---|---|---|---|---|---|---|
| Score / Max Score | 0 / 0 | 200 / 200 | ||||
| Status |
|
|
| Set Name | Test Cases |
|---|---|
| Sample | s1.txt, s2.txt, s3.txt |
| All | 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, s1.txt, s2.txt, s3.txt |
| Case Name | Status | Exec Time | Memory |
|---|---|---|---|
| 01.txt | AC | 1 ms | 256 KiB |
| 02.txt | AC | 1 ms | 256 KiB |
| 03.txt | AC | 1 ms | 256 KiB |
| 04.txt | AC | 1 ms | 256 KiB |
| 05.txt | AC | 1 ms | 256 KiB |
| 06.txt | AC | 1 ms | 256 KiB |
| 07.txt | AC | 1 ms | 256 KiB |
| 08.txt | AC | 1 ms | 256 KiB |
| 09.txt | AC | 1 ms | 256 KiB |
| 10.txt | AC | 1 ms | 256 KiB |
| s1.txt | AC | 1 ms | 256 KiB |
| s2.txt | AC | 1 ms | 256 KiB |
| s3.txt | AC | 1 ms | 256 KiB |