Submission #1023575

#	Time	Username	Problem	Language	Result	Execution time	Memory
1023575		vjudge1	Exhibition (JOI19_ho_t2)	C++17	100 / 100	41 ms	4544 KiB

joi2019_ho_t2

#include <bits/stdc++.h>
#define file(name)  if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
#define FOR(i, a, b) for(int i = (a); i <= (b); ++i)
#define REV(i, b, a) for(int i = (b); i >= (a); --i)
#define REP(i, n) for(int i = 0; i < (n); ++i)
#define ll long long
#define fi first 
#define se second
using namespace std;
void solve(int tc) {
    int n, m;
    cin >> n >> m;
    vector<pair<int, int>> a(n);
    vector<int> c(m);
    FOR(i, 0, n - 1) cin >> a[i].se >> a[i].fi;
    FOR(i, 0, m - 1) cin >> c[i];
    sort(a.begin(), a.end());
    sort(c.begin(), c.end());
    int ans = 0, j = m - 1;
    for(int i = n - 1; i >= 0 && j >= 0; --i) {
        if(c[j] >= a[i].se) {
            ++ans;
            --j;
        }
    }
    cout << ans << '\n';
    return;
}

int32_t main() {
    ios::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);

    int tc = 1; 
    // cin >> tc;
    for(int i = 1; i <= tc; ++i) solve(tc);
    return (0);
}

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