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Submission #169512

# Submission time Handle Problem Language Result Execution time Memory
169512 2019-12-20T18:27:05 Z muhammad_hokimiyon Schools (IZhO13_school) C++14
100 / 100
 262 ms 17520 KB 
#include <bits/stdc++.h>

#pragma GCC optimize("Ofast")

#define fi first
#define se second
#define ll long long

using namespace std;

const int N = 3e5 + 7;
const int mod = 1e9 + 7;

ll n,m,ss;
ll pr[N];
ll sf[N];
pair < ll , pair < ll , ll > > p[N];

void solve()
{
    cin >> n >> m >> ss;
    for( int i = 1; i <= n; i++ ){
        cin >> p[i].se.fi >> p[i].se.se;
        p[i].fi = p[i].se.fi - p[i].se.se;
    }
    sort( p + 1 , p + n + 1 );
    reverse( p + 1 , p + n + 1 );
    multiset < ll > s;
    for( int i = 1; i <= n; i++ ){
        pr[i] = pr[i - 1] + p[i].se.fi;
        s.insert(p[i].se.fi);
        if( i > m ){
            pr[i] -= *s.begin();
            s.erase(s.begin());
        }
    }
    s.clear();
    for( int i = n; i >= 1; i-- ){
        sf[i] = sf[i + 1] + p[i].se.se;
        s.insert(p[i].se.se);
        if( n - i + 1 > ss ){
            sf[i] -= *s.begin();
            s.erase(s.begin());
        }
    }
    ll ans = 0;
    for( int i = m; i <= n - ss; i++ ){
        ans = max( ans , pr[i] + sf[i + 1] );
    }
    cout << ans;
}

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    //freopen( "input.txt" , "r" , stdin );
    //freopen( "output.txt" , "w" , stdout );

    int t = 1;//cin >> t;
    while( t-- ){
        solve();
    }
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 372 KB Output is correct
4 Correct 2 ms 380 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 4 ms 632 KB Output is correct
8 Correct 4 ms 760 KB Output is correct
9 Correct 5 ms 760 KB Output is correct
10 Correct 5 ms 760 KB Output is correct
11 Correct 5 ms 760 KB Output is correct
12 Correct 5 ms 760 KB Output is correct
13 Correct 28 ms 3320 KB Output is correct
14 Correct 49 ms 4472 KB Output is correct
15 Correct 76 ms 7032 KB Output is correct
16 Correct 175 ms 14840 KB Output is correct
17 Correct 200 ms 13872 KB Output is correct
18 Correct 207 ms 14096 KB Output is correct
19 Correct 236 ms 15340 KB Output is correct
20 Correct 262 ms 17520 KB Output is correct