제출 #370247

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
370247		Atill83	Ronald (COCI17_ronald)	C++14	120 / 120	43 ms	6400 KiB

ronald

#include <bits/stdc++.h>
#define ff first
#define ss second
#define endl '\n'
using namespace std;
const long long INF = (long long) 1e18;
const int mod = (int) 1e9+7;
const int MAXN = (int) 1e3+5;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
ll n;
int og[MAXN][MAXN];

int dur[MAXN];

bool do_it(vector<int> v){
    for(int i = 1; i < n; i++)
        v[i] = !(og[i][0] ^ v[0]);

    for(int i = 1; i < n; i++)
        for(int j = i + 1; j < n; j++){
            if((og[i][j] ^ (v[i] ^ v[j])) == 0)
                return 0;

        }
    return 1;
}


int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);cout.tie(nullptr);

    #ifdef Local
        freopen("C:/Users/Admin/Desktop/Yazilim/C/IO/int.txt","r",stdin);
        freopen("C:/Users/Admin/Desktop/Yazilim/C/IO/out.txt","w",stdout);
    #endif

    int m;
    cin>>n>>m;

    for(int i = 0; i < m; i++){
        int a, b;
        cin>>a>>b;
        a--;
        b--;
        og[a][b] = og[b][a] = 1;
    }

    vector<int> durum1(n, 0), durum2(n, 0);
    durum2[0] = 1;

    if(do_it(durum1) || do_it(durum2))
        cout<<"DA"<<endl;
    else
        cout<<"NE"<<endl;
    
    #ifdef Local
        cout<<endl<<fixed<<setprecision(2)<<1000.0 * clock() / CLOCKS_PER_SEC<< " milliseconds ";
    #endif
}

• Subtask 1: 15 / 15
• Subtask 2: 15 / 15
• Subtask 3: 15 / 15
• Subtask 4: 15 / 15
• Subtask 5: 15 / 15
• Subtask 6: 15 / 15
• Subtask 7: 15 / 15
• Subtask 8: 15 / 15