Submission #986458

#	Time	Username	Problem	Language	Result	Execution time	Memory
986458		LOLOLO	Hotel (CEOI11_hot)	C++14	100 / 100	698 ms	34860 KiB

hot

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
 
#define           f     first
#define           s     second
#define           pb    push_back
#define           ep    emplace
#define           eb    emplace_back
#define           lb    lower_bound
#define           ub    upper_bound
#define       all(x)    x.begin(), x.end()
#define      rall(x)    x.rbegin(), x.rend()
#define   uniquev(v)    sort(all(v)), (v).resize(unique(all(v)) - (v).begin())
#define     mem(f,x)    memset(f , x , sizeof(f))
#define        sz(x)    (int)(x).size()
#define  __lcm(a, b)    (1ll * ((a) / __gcd((a), (b))) * (b))
#define          mxx    *max_element
#define          mnn    *min_element
#define    cntbit(x)    __builtin_popcountll(x)
#define       len(x)    (int)(x.length())
 
const int N = 2e5 + 10;
 
signed main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    int n, m, o;
    cin >> n >> m >> o;

    multiset <pair <int, int>> st;
    for (int i = 0; i < n; i++) {
        int a, b;
        cin >> a >> b;
        st.insert({b, a});
    }

    vector <pair <int, int>> save;
    for (int i = 0; i < m; i++) {
        int a, b;
        cin >> a >> b;
        save.pb({a, -b});
    }

    vector <ll> dis;
    sort(all(save), greater <pair <int, int>> ());
    for (auto x : save) {
        auto it = st.lower_bound({-x.s, -1e9});
        if (it == st.end())
            continue;

        ll diff = x.f - it->second;

        dis.pb(diff);
        st.erase(it);
    }

    ll ans = 0;

    sort(all(dis), greater <ll> ());
    for (int i = 0; i < min(sz(dis), o); i++) {
        ans += max(dis[i], (ll)0);
    }

    cout << ans << '\n';
    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10