Submission #886730

#	Time	Username	Problem	Language	Result	Execution time	Memory
886730		aykhn	Sure Bet (CEOI17_sure)	C++17	0 / 100	0 ms	348 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 int ll
#define infll 0x3F3F3F3F3F3F3F3F
#define inf 0x3F3F3F3F
 
void _()
{
    int n;
    cin >> n;
    int a[n], b[n];
    int res = -infll;
    for (int i = 0; i < n; i++) 
    {
        double x, y;
        cin >> x >> y;
        a[i] = x * 10000 + 0.5;
        b[i] = y * 10000 + 0.5;
    }
    sort(a, a + n, greater<int> ());
    sort(b, b + n, greater<int> ());
    int i = 0;
    int j = 0;
    int 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 <= sum2) sum1 += a[i++];
        else sum2 += b[j++];
        res = max(res, min(sum2, sum1) - i * 10000 - j * 10000);
    }
    cout << res/10000 << '.' << res%10000 << '\n';
}
 
signed main()
{
    int t = 1;
    // cin >> t;
    for (int tt = 0; tt < t; tt++)
    {
        _();
    }
}

• Subtask 1: 0 / 20
• Subtask 2: 0 / 40
• Subtask 3: 0 / 40