Submission #1277403

#	Time	Username	Problem	Language	Result	Execution time	Memory
1277403		hiepsimauhong	Exhibition (JOI19_ho_t2)	C++20	0 / 100	1 ms	568 KiB

joi2019_ho_t2

#include <bits/stdc++.h>

using namespace std;

#define int long long
using ll = long long;

#define FOR(I, L, R) for(int I(L) ; I <= (int)R ; ++I)
#define FOD(I, R, L) for(int I(R) ; I >= (int)L ; --I)
#define FOA(I, A) for(auto &I : A)

#define print(A,L,R) FOR(OK, L, R){if(A[OK]<=-oo / 10||A[OK]>=oo)cout<<"- ";else cout<<A[OK]<<' ';}cout<<'\n';
#define prints(A) FOA(OK, A){cout<<OK<<' ';}cout << '\n';
#define printz(A,L,R) FOR(OK, 1, L){FOR(KO, 1, R){if(A[OK][KO]>-oo&&A[OK][KO]<oo)cout<<A[OK][KO]<<' ';else cout << "- ";} cout << '\n';}cout << '\n';

#define fs first
#define sd second
#define ii pair<int,int>
#define iii pair<int, ii>
#define all(A) A.begin(), A.end()
#define quickly cin.tie(0) -> ios_base::sync_with_stdio(0);

const int N = 1e6 + 5;
const int mod = 1e9 + 7;
const int oo = 1e9;

int n, m;
ii a[N];
int w[N];

bool calc(int x){
        priority_queue<ii> pq;

        FOR(i, 1, n){
                pq.push({a[i].sd, i});
                if(pq.size() > x){
                        pq.pop();
                }
        }

        vector<int> val = {-1};

        FOR(i, 1, x){
                val.push_back(pq.top().sd);
                pq.pop();
        }

        sort(all(val));

        FOR(i, 1, x){
                if(w[i] < a[val[i]].sd){
                        return 0;
                }
        }
        return 1;
}

signed main(){ quickly
        cin >> n >> m;

        FOR(i, 1, n){
                cin >> a[i].sd >> a[i].fs;
        }

        sort(a + 1, a + 1 + n);

        FOR(i, 1, m){
                cin >> w[i];
        }

        sort(w + 1, w + 1 + m, greater<int>());

        int l = 1, r = min(n, m);
        int ans = 0;

        while(l <= r){
                int mid = (l + r) >> 1;
                if(calc(mid)){
                        l = mid + 1;
                        ans = mid;
                }
                else{
                        r = mid - 1;
                }
        }

        cout << ans;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 40
• Subtask 3: 0 / 50