Submission #144260

#	Time	Username	Problem	Language	Result	Execution time	Memory
144260		Abelyan	Izlet (COI19_izlet)	C++17	18 / 100	647 ms	40476 KiB

izlet

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;

#define FOR(i,a) for (int i=0;i<(a);++i)
#define FORD(i,a) for (int i=(a)-1;i>=0;i--)
#define FORT(i,a,b) for (int i=(a);i<=(b);++i)
#define FORTD(i,b,a) for (int i=(b);i>=(a);--i)
#define trav(i,v) for (auto i : v)
#define all(v) v.begin(),v.end()
#define ad push_back
#define fr first
#define sc second
#define mpr(a,b) make_pair(a,b)
#define pir pair<int,int>
#define all(v) v.begin(),v.end()
#define make_unique(v) v.erase(unique(all(v)),v.end())
#define fastio ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define srng mt19937 rng(chrono::steady_clock::now().time_since_epoch().count())
#define y1 EsiHancagorcRepa

const int N=3e3+10;
const ll MOD2=998244353;
const ll MOD=1e9+7;

int qan[N][N],par[N],ans[N];
bool col[N];

int get(int v){
    if (par[v]==v)return v;
    return par[v]=get(par[v]);
}

void unite(int a,int b){
    a=get(a);
    b=get(b);
    if (a!=b){
        if (b>a)swap(a,b);
        par[a]=b;
    }
}

int main(){
    fastio;
    srng;
    int tp;
    cin>>tp;
    if (tp==1){
        int n;
        cin>>n;
        FORT(i,1,n)par[i]=i;
        FORT(i,1,n){
            FORT(j,1,n){
                cin>>qan[i][j];
                if (qan[i][j]==1)unite(i,j);
            }
        }
        FORT(i,1,n){
            if (get(i)==1)cout<<1<<" ";
            else cout<<2<<" ";
        }
        cout<<endl;
        FORT(i,1,n){
            if (i!=get(i))
                cout<<i<<" "<<get(i)<<endl;
        }
        FORT(i,2,n){
            int k=get(i);
            if (k==1 || col[k])continue;
            col[k]=true;
            cout<<1<<" "<<k<<endl;
        }
    }
    if (tp==2){

        int cnt=1;
        int n;
        cin>>n;
        FORT(i,1,n){
            FORT(j,1,n){
                cin>>qan[i][j];
            }
            int piti=2;
            FORTD(j,i-1,1){
                if (qan[i][j]!=piti){
                    ans[i]=ans[j];
                    break;
                }
                if (col[ans[j]])continue;
                col[ans[j]]=true;
                piti++;
                //cout<<ans[i]<<" "<<piti<<endl;
            }
            FORT(i,1,n)col[i]=false;
            if (ans[i]==0)ans[i]=cnt++;
        }
        FORT(i,1,n)cout<<ans[i]<<" ";
        cout<<endl;
        FORT(i,2,n){
            cout<<i-1<<" "<<i<<endl;
        }
    }
    return 0;
}

• Subtask 1: 18 / 18
• Subtask 2: 0 / 25
• Subtask 3: 0 / 57