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답안 #967843

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
967843 2024-04-23T01:55:33 Z ByeWorld Sure Bet (CEOI17_sure) C++14
0 / 100
 0 ms 348 KB 
#include <bits/stdc++.h>
#define ll long long
#define int long long
#define pb push_back
#define fi first
#define se second
#define lf (id<<1)
#define rg ((id<<1)|1)
#define md ((l+r)>>1)
#define ld long double
using namespace std;
const int MAXN = 2e5+10;
const int INF = 4e18+10;
typedef pair<int,int> pii;
typedef pair<pii,int> ipii;
const int MX = 1e9+10;

int n;
vector <ld> vec, vec2;
ld pr[MAXN], pref[MAXN];

signed main(){
	// ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin >> n;
	for(int i=1; i<=n; i++){
		ld x, y; cin >> x >> y;
		vec.pb(x); vec2.pb(y);
	}
	vec.pb(INF); vec2.pb(INF);
	sort(vec.rbegin(), vec.rend());
	sort(vec2.rbegin(), vec2.rend());
	ld ANS = 0, le = 0, ri = 0; int l=1, r=1;
	for(int i=1; i<=2*n; i++){
		le--; ri--;
		if(r==n || le < ri){ // ambil l
			le += vec[l++];
		} else {
			ri += vec2[r++];
		}
		// cout << le << ' '<< ri << " leri\n";
		ANS = max(ANS, min(le, ri));
	}
	printf("%.4lf",(double)ANS);
}

Subtask #1
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -