Submission #926623

#	Time	Username	Problem	Language	Result	Execution time	Memory
926623		De3b0o	Advertisement 2 (JOI23_ho_t2)	C++14	59 / 100	5 ms	3676 KiB

Main

#include<bits/stdc++.h>
#define ll long long
#define F first
#define S second
#define in insert
#define er erase
#define pb push_back
#define ppb pop_back()
#define ph push
#define pp pop()
#define d3 ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define cans cout << ans << "\n";
#define yes cout << "YES" << "\n";
#define no cout << "NO" << "\n";
#define pll pair<ll,ll>
#define lin cout << "\n";
#define sqr 340
#define mod 1000000007

using namespace std;

pll a[1009];
vector<ll> adj[1009];
bool vis[1009];

void dfs(ll n)
{
    if(vis[n])
        return;
    vis[n]=1;
    for(auto it : adj[n])
        dfs(it);
}

int main()
{
    d3
    ll n;
    cin >> n;
    for(int i = 0 ; n>i ; i++)
        cin >> a[i].S >> a[i].F;
    sort(a,a+n);
    for(int i = n-1 ; i>=0 ; i--)
        for(int j = i-1 ; j>=0 ; j--)
            if(a[i].F-a[j].F>=abs(a[i].S-a[j].S))
                adj[i].pb(j);
    ll ans = 0;
    for(int i = n-1 ; i>=0 ; i--)
    {
        if(vis[i])
            continue;
        ans++;
        dfs(i);
    }
    cans
}

• Subtask 1: 0 / 10
• Subtask 2: 23 / 23
• Subtask 3: 36 / 36
• Subtask 4: 0 / 31