Submission #478407

#	Time	Username	Problem	Language	Result	Execution time	Memory
478407		FireGhost1301	Exhibition (JOI19_ho_t2)	C++11	0 / 100	1 ms	336 KiB

joi2019_ho_t2

/**
    __author__ : FireGhost
    problems_ID: JOI19_ho_t2
 */

#include <bits/stdc++.h>
using namespace std;

#define mp make_pair
#define pb push_back
#define eb emplace_back
#define fi first
#define se second
#define all(x) x.begin(), x.end()

using ll = long long;
using ull = unsigned long long;
using ld = long double;
using pii = pair<int, int>;

const int N = 1e5 + 3;
const int MOD = 1e9 + 7;

struct item {
    int s, v;
    bool operator < (const item &o) const {
        return v < o.v;
    }
};

int n, m, c[N], dp[N], p[N];
item a[N];

void solve() {
    cin >> n >> m;
    for (int i = 1; i <= n; ++i)
        cin >> a[i].s >> a[i].v;
    for (int i = 1; i <= m; ++i)
        cin >> c[i];
    sort(a + 1, a + n + 1);
    sort(c + 1, c + n + 1);
    int j = n, ans = 0;
    for (int i = n; i > 0; --i) {
        if (a[i].s > c[j]) continue;
        --j, ++ans;
    }
    cout << ans;
}

int main() {
    cin.tie(NULL);
    ios_base::sync_with_stdio(false);
    int t = 1;
    while (t--)
        solve();
    return 0;
}

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