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Submission #477088

# Submission time Handle Problem Language Result Execution time Memory
477088 2021-09-30T08:57:26 Z ogibogi2004 Schools (IZhO13_school) C++14
85 / 100
 257 ms 14896 KB 
#include<bits/stdc++.h>
using namespace std;
#define ll long long
const int MAXN=3e5+6;
int n,m,s;
struct city
{
    ll a,b;
    bool operator<(city const& other)const
    {
        if(a-b!=other.a-other.b)return a-b>other.a-other.b;
        return make_pair(a,b)>make_pair(a,b);
    }
};
city c[MAXN];
ll best1[MAXN],best2[MAXN];
priority_queue<ll>pq;
int main()
{
    cin>>n>>m>>s;
    for(int i=1;i<=n;i++)
    {
        cin>>c[i].a>>c[i].b;
    }
    sort(c+1,c+n+1);
    best1[0]=0;
    ll sum=0;
    /*for(int i=1;i<=n;i++)
    {
        cout<<c[i].a<<" "<<c[i].b<<endl;
    }*/
    for(int i=1;i<=n;i++)
    {
        sum+=c[i].a;
        pq.push(-c[i].a);
        if(i>m)
        {
            sum+=pq.top();
            pq.pop();
        }
        best1[i]=sum;
    }
    sum=0;
    best2[n+1]=0;
    for(int i=n;i>=1;i--)
    {
        sum+=c[i].b;
        pq.push(-c[i].b);
        if(n-i+1>s)
        {
            sum+=pq.top();
            pq.pop();
        }
        best2[i]=sum;
    }
    ll ans=0;
    for(int i=m;i+s<=n;i++)
    {
        ans=max(ans,best1[i]+best2[i+1]);
    }
    /*for(int i=1;i<=n;i++)cout<<best1[i]<<" ";
    cout<<endl;
    for(int i=1;i<=n;i++)cout<<best2[i]<<" ";
    cout<<endl;*/
    cout<<ans<<endl;
return 0;
}

Subtask #1
85.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 296 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 4 ms 440 KB Output is correct
8 Correct 4 ms 612 KB Output is correct
9 Incorrect 5 ms 588 KB Output isn't correct
10 Incorrect 6 ms 460 KB Output isn't correct
11 Correct 4 ms 588 KB Output is correct
12 Correct 4 ms 588 KB Output is correct
13 Incorrect 35 ms 2196 KB Output isn't correct
14 Correct 62 ms 3952 KB Output is correct
15 Correct 139 ms 7104 KB Output is correct
16 Correct 179 ms 9528 KB Output is correct
17 Correct 174 ms 11256 KB Output is correct
18 Correct 190 ms 12080 KB Output is correct
19 Correct 212 ms 13008 KB Output is correct
20 Correct 257 ms 14896 KB Output is correct