Submission #965014

#	Time	Username	Problem	Language	Result	Execution time	Memory
965014		Whisper	Gym Badges (NOI22_gymbadges)	C++17	100 / 100	136 ms	22216 KiB

Main

#include <bits/stdc++.h>

using namespace std;
using ll = long long;

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

constexpr ll LINF = (1ll << 60);
constexpr int INF = (1ll << 30);
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;
    }
const int MAX = 5e5 + 5;
struct Data{
    int x, l;

    bool operator < (const Data& oth) const{
        return x + l < oth.x + oth.l;
    }
} a[MAX];

int nArr;
void Whisper(){
    cin >> nArr;
    FOR(i, 1, nArr) cin >> a[i].x;
    FOR(i, 1, nArr) cin >> a[i].l;

    sort(a + 1, a + nArr + 1);
    priority_queue<int> q;
    int sum = 0, ans = 0;
    for (int i = 1; i <= nArr; ++i){
        if (sum > a[i].l){
            if(q.top() > a[i].x){
                sum -= q.top(); q.pop();
                sum += a[i].x; q.push(a[i].x);
            }
        }
        else{
            sum += a[i].x;
            q.push(a[i].x);
        }
        maximize(ans, (int)q.size());
    }
    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: 15 / 15
• Subtask 2: 9 / 9
• Subtask 3: 27 / 27
• Subtask 4: 49 / 49