제출 #886741

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
886741		aykhn	Sure Bet (CEOI17_sure)	C++17	100 / 100	106 ms	3668 KiB

sure

#include <bits/stdc++.h>
 
// author : aykhn
 
using namespace std;
typedef long long ll;
 
#define pb push_back
#define ins insert
#define mpr make_pair
#define all(v) v.begin(), v.end()
#define bpc __builtin_popcount
#define bpcll __builtin_popcountll
#define pii pair<int, int>
#define pll pair<ll, ll>
#define fi first
#define se second
#define infll 0x3F3F3F3F3F3F3F3F
#define inf 0x3F3F3F3F
 
void _()
{
    int n;
    cin >> n;
    double a[n], b[n];
    double res = 0;
    for (int i = 0; i < n; i++) cin >> a[i] >> b[i];
    sort(a, a + n, greater<double> ());
    sort(b, b + n, greater<double> ());
    int i = 0;
    int j = 0;
    double sum1 = 0, sum2 = 0;
    while (i < n || j < n)
    {
        if (i == n) sum2 += b[j++];
        else if (j == n) sum1 += a[i++];
        else if (sum1 + a[i] <= sum2 + b[j]) sum1 += a[i++];
        else sum2 += b[j++];
        res = max(res, min(sum2, sum1) - i - j);
    }
  	cout.precision(4);
    cout << fixed << res << '\n';
}
 
signed main()
{
    int t = 1;
    // cin >> t;
    for (int tt = 0; tt < t; tt++)
    {
        _();
    }
}

• Subtask 1: 20 / 20
• Subtask 2: 40 / 40
• Subtask 3: 40 / 40