Submission #990373

#	Time	Username	Problem	Language	Result	Execution time	Memory
990373		thelegendary08	Advertisement 2 (JOI23_ho_t2)	C++14	100 / 100	140 ms	21844 KiB

Main

#include<bits/stdc++.h>
#define pb push_back
#define int long long
#define ll long long int
#define vi vector<int>
#define vvi vector<vector<int>>
#define vll vector<long long int>
#define vvll vector<vector<long long int>>
#define pii pair<int, int>
#define vpii vector<pair<int, int>>
#define vc vector<char>
#define vvc vector<vector<char>>
#define vb vector<bool>
#define mii map<int,int>
#define mll map<long long int, long long int>
#define mivi map<int,vector<int>>
#define f0r(i,n) for(int i=0;i<n;i++)
#define FOR(i,k,n) for(int i=k;i<n;i++)
using namespace std;
bool cmp(pair<pii,int> aa, pair<pii,int> bb){
    pii a = aa.first;
    pii b = bb.first;
    if(a.first < b.first)return 1;
    if(a.first > b.first)return 0;
    if(a.second > b.second)return 1;
    return 0;
}
signed main(){
	ios::sync_with_stdio(false);
	cin.tie(NULL);
	//ifstream cin(".in");
	//ofstream cout(".out");
	int n;
	cin>>n;
	vector<pair<pii, int>> v(n);
	//vpii sum(n);
	//vpii diff(n);
	//set<int>s;
	f0r(i,n){
        int x,e;
        cin>>x>>e;
        v[i] = {{x-e, x+e}, i};
        //sum[i] = e+x;
        //s.insert(x);
	}

	sort(v.begin(), v.end(), cmp);
	int mx = -1;
	int ans = 0;
	//for(auto u : v)cout<<u.first.first<<' '<<u.first.second<<'\n';
	f0r(i,n){
        if(v[i].first.second > mx){
            mx = v[i].first.second;
            ans++;
        }
	}
	cout<<ans;



}

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