제출 #1205455

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1205455		Mighilon	Sure Bet (CEOI17_sure)	C++20	0 / 100	0 ms	528 KiB

sure

#include <bits/stdc++.h>
using namespace std;
 
#ifdef DEBUG
#include "../Library/debug.h"
#else
#define dbg(x...)
#endif
 
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pi;
typedef pair<ll, ll> pl;
typedef vector<int> vi;
typedef vector<bool> vb;
typedef vector<ll> vl;
typedef vector<pi> vpi;
typedef vector<pl> vpl; 
 
#define FOR(i, a, b) for (int i = (a); i < (b); ++i)
#define F0R(i, a) for (int i = 0; i < (a); ++i)
#define FORd(i, a, b) for (int i = (b) - 1; i >= (a); --i)
#define F0Rd(i, a) for (int i = (a) - 1; i >= 0; --i)
#define trav(a, x) for (auto& a : x)
#define f first 
#define s second
#define pb push_back
#define sz(x) (int)(x).size()
#define all(x) x.begin(), x.end()
 
const char nl = '\n';
const int INF = 1e9;
const int MOD = 1e9 + 7;

void solve(){
    int n;
    cin>>n;
    vector<array<double,3>> a(n),b;
    F0R(i,n){
        cin>>a[i][0]>>a[i][1];
        a[i][0]--;
        a[i][1]--;
        a[i][2]=i;
    }
    b=a;
    sort(all(a),[](auto& i, auto& j){return i[0]>j[0];});
    sort(all(b),[](auto& i, auto& j){return i[1]>j[1];});
    pair<double,double> ans={0,0};
    int j=-1;
    double x=0,y=0;
    F0R(i,n){
        x+=a[i][0];
        if(j+1<n&&min(x-(j+2),y+b[j+1][1]-(i+1))>min(ans.f,ans.s)){
            ans={x-(j+2),y+b[j+1][1]-(i+1)};
            y+=b[++j][1];
        }
        else if(j>=0&&min(x-j,y-b[j][1]-(i+1))>min(ans.f,ans.s)){
            ans={x-j,y-b[j][1]-(i+1)};
            y-=b[j--][1];
        }
    }
    cout<<fixed<<setprecision(4)<<min(ans.f,ans.s)<<nl;
}
 
int32_t main(){
    ios::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
    
    int TC = 1;
    // cin >> TC;
    while(TC--){
        solve();
    }
    return 0;
}

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