제출 #249700

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
249700		srvlt	학교 설립 (IZhO13_school)	C++14	25 / 100	109 ms	6264 KiB

school

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
#define ll long long
#define ld long double
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define SZ(x) (int)(x).size()
template <typename T> using ord_set = tree <T, null_type, less <T>, rb_tree_tag, tree_order_statistics_node_update>;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const int n0 = 3e5 + 123;
int n, m, s;

struct Pair {
	int x, y;
	bool operator < (const Pair & p) const {
		return x - y > p.x - p.y;
	}
};
Pair p[n0];

bool cmp(const Pair & a, const Pair & b) {
	return a.y > b.y;
}

int main() {
	ios_base::sync_with_stdio(false), cin.tie(NULL);
	#ifdef LOCAL
		freopen("input.txt", "r", stdin);
	#endif
	
	cin >> n >> m >> s;
	for (int i = 0; i < n; i++) cin >> p[i].x >> p[i].y;
	sort(p, p + n);
	ll res = 0;
	for (int i = 0; i < m; i++) res += p[i].x;
	sort(p + m, p + n, cmp);
	for (int i = m; i < m + s; i++) res += p[i].y;
	cout << res;
}

• Subtask 1: 25 / 100