Submission #865220

#	Time	Username	Problem	Language	Result	Execution time	Memory
865220		vjudge1	Sure Bet (CEOI17_sure)	C++17	60 / 100	2049 ms	1872 KiB

sure

#include <bits/stdc++.h>
#define ll long long
#define Sayan ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define file(s) if (fopen(s".in", "r")) freopen(s".in", "r", stdin), freopen(s".out", "w", stdout)
#define all(a) a.begin() , a.end()
#define Int(a,x) a+1 , a+1+x
#define sz() size()
#define F first
#define S second
#define pb push_back
#define yes cout << "YES\n"
#define no cout << "NO\n"
#define pii pair<ll,ll>
using namespace std ;

const ll N = 1e5+5;
const ll INF = 1e18;
const ll mod = 1e9+7;

/*
ll binpow(ll a , ll b){
    if(b == 0) return 1;
    if(b%2) return binpow(a , b-1) * a % mod;
    ll c = binpow(a , b/2) % mod;
    return c*c%mod;
}
*/
double l[N],r[N];
void solve(){
	ll n;
	cin>>n;
	double mx=0;
	for(ll i=1;i<=n;i++){
		cin>>l[i]>>r[i];
	}
	sort(l+1,l+1+n);
	reverse(l+1,l+1+n);
	sort(r+1,r+1+n);
	reverse(r+1,r+1+n);
	double pr1=0;
	for(ll i=1;i<=n;i++){
		pr1+=l[i];
		double sum=i;
		double pr2=0;
		for(ll j=1;j<=n;j++){
			pr2+=r[j];
			double sumo=sum+j;
			double mn=min(pr1-sumo,pr2-sumo);
			if(mn>mx){
				mx=mn;
			}
		}
	}
	cout<<fixed<<setprecision(4)<<mx<<"\n";
}
signed main () {
	Sayan;
	ll t=1;
	//cin>>t;
	while(t--)solve();
}

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