oj.uz

Submission #915575

# Submission time Handle Problem Language Result Execution time Memory
915575 2024-01-24T07:59:34 Z Whisper Schools (IZhO13_school) C++14
100 / 100
 99 ms 10836 KB 
#include <bits/stdc++.h>

using namespace std;
using ll = long long;
using ld = long double;
using T = tuple<ll, ll, ll>;

#define int long long
#define Base 41
#define sz(a) (int)a.size()
#define FOR(i, a, b) for ( int i = a ; i <= b ; i++ )
#define FORD(i, a, b) for (int i = b; i >= a; i --)
#define REP(i, n) for (int i = 0; i < n; ++i)
#define REPD(i, n) for (int i = n - 1; i >= 0; --i)
#define all(x) x.begin() , x.end()
#define pii pair<int , int>
#define fi first
#define se second
#define Lg(x) 31 - __builtin_clz(x)

#define MASK(i) (1LL << (i))
#define BIT(x, i) (((x) >> (i)) & 1)

constexpr ll LINF = (1ll << 60);
constexpr int INF = (1ll << 30);
constexpr int MAX = 3e5 + 5;
constexpr int Mod = 1e9 + 7;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

void setupIO(){
    #define name "Whisper"
    //Phu Trong from Nguyen Tat Thanh High School for gifted student
    srand(time(NULL));
    cin.tie(nullptr)->sync_with_stdio(false); cout.tie(nullptr);
    //freopen(name".inp", "r", stdin);
    //freopen(name".out", "w", stdout);
    cout << fixed << setprecision(10);
}

template <class X, class Y>
    bool minimize(X &x, const Y &y){
        X eps = 1e-9;
        if (x > y + eps) {x = y; return 1;}
        return 0;
    }

template <class X, class Y>
    bool maximize(X &x, const Y &y){
        X eps = 1e-9;
        if (x + eps < y) {x = y; return 1;}
        return 0;
    }
int N, M, S;
struct Data{
    int a, b;
    bool operator < (const Data& oth) const{
        return a - b > oth.a - oth.b;
    }
} a[MAX];

int ans = 0;
int f[MAX][2];
void Whisper(){
    cin >> N >> M >> S;
    for (int i = 1; i <= N; ++i){
        cin >> a[i].a >> a[i].b;
    }
    sort(a + 1, a + N + 1);

    priority_queue<int, vector<int>, greater<int>> q;
    for (int i = 1; i <= N; ++i){
        f[i][0] = f[i - 1][0] + a[i].a;
        q.push(a[i].a);
        while ((int)q.size() > M) f[i][0] -= q.top(), q.pop();
    }
    while(!q.empty()) q.pop();
    for (int i = N; i >= 1; --i){
        f[i][1] = f[i + 1][1] + a[i].b;
        q.push(a[i].b);
        while ((int)q.size() > S) f[i][1] -= q.top(), q.pop();
    }
    int ans = 0;
    for (int i = 1; i <= N; ++i){
        maximize(ans, f[i][0] + f[i + 1][1]);
    }
    cout << ans;
}


signed main(){
    setupIO();
    int Test = 1;
//    cin >> Test;
    for ( int i = 1 ; i <= Test ; i++ ){
        Whisper();
        if (i < Test) cout << '\n';
    }
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 2 ms 2396 KB Output is correct
8 Correct 2 ms 2652 KB Output is correct
9 Correct 2 ms 2396 KB Output is correct
10 Correct 2 ms 2652 KB Output is correct
11 Correct 2 ms 2652 KB Output is correct
12 Correct 2 ms 2652 KB Output is correct
13 Correct 13 ms 5088 KB Output is correct
14 Correct 22 ms 4956 KB Output is correct
15 Correct 39 ms 8912 KB Output is correct
16 Correct 60 ms 10836 KB Output is correct
17 Correct 65 ms 9676 KB Output is correct
18 Correct 73 ms 9876 KB Output is correct
19 Correct 78 ms 9932 KB Output is correct
20 Correct 99 ms 10832 KB Output is correct