Submission #1036985

#	Time	Username	Problem	Language	Result	Execution time	Memory
1036985		ivaziva	Advertisement 2 (JOI23_ho_t2)	C++14	10 / 100	306 ms	25796 KiB

Main

#include <bits/stdc++.h>

using namespace std;

#define MAXN 500001

long long n;
vector<pair<long long,long long>> vec;
long long f[MAXN],maks[MAXN];

bool cmp(pair<long long,long long> a,pair<long long,long long> b)
{
    if (a.first<b.first) return true;
    else if (b.first<a.first) return false;
    else
    {
        if (a.second>b.second) return true;
        else return false;
    }
}

int main()
{
    cin>>n;
    vec.push_back({0,0});
    for (long long i=1;i<=n;i++)
    {
        long long x,e;cin>>x>>e;
        vec.push_back({x,e});
    }
    sort(vec.begin(),vec.end(),cmp);
    for (long long i=1;i<=n;i++) f[i]=vec[i].first-vec[i].second;
    long long ans=0;maks[1]=f[1];
    for (long long i=2;i<=n;i++)
    {
        if (f[i]>maks[i-1]) {ans++;maks[i]=f[i];}
        else maks[i]=maks[i-1];
    }
    cout<<ans+1<<endl;
}

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