Submission #861990

#	Time	Username	Problem	Language	Result	Execution time	Memory
861990		JakobZorz	Advertisement 2 (JOI23_ho_t2)	C++14	100 / 100	129 ms	14088 KiB

Main

#include<iostream>
#include<vector>
#include<queue>
#include<stack>
#include<algorithm>
#include<limits.h>
#include<math.h>
#include<map>
#include<set>
#include<unordered_map>
#include<unordered_set>
#include<iomanip>
typedef long long ll;
typedef long double ld;
using namespace std;
const int MOD=1e9+7;
//typedef pair<ll,ll>Point;
//typedef pair<ll,ll>Line;
//#define x first
//#define y second

bool cmp(pair<int,int>a,pair<int,int>b){
    if(a.first==b.first)
        return a.second>b.second;
    return a.first<b.first;
}

int main(){
    ios::sync_with_stdio(false);
    cout.tie(NULL);
    cin.tie(NULL);
    
    //freopen("input.txt","r",stdin);
    //freopen("output.txt","w",stdout);
    
    int n;
    cin>>n;
    vector<pair<int,int>>arr(n);
    for(auto&i:arr){
        int x,a;
        cin>>x>>a;
        i={x-a,x+a};
    }
    sort(arr.begin(),arr.end(),cmp);
    int cov=-2e9;
    int res=0;
    for(auto i:arr){
        if(i.second>cov){
            cov=i.second;
            res++;
        }
    }
    
    cout<<res<<"\n";
    
    return 0;
}

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