Submission #94243

#	Time	Username	Problem	Language	Result	Execution time	Memory
94243		1Khan	Sure Bet (CEOI17_sure)	C++14	0 / 100	2 ms	420 KiB

sure

/// 1n  the  name  of  GOD

#include <bits/stdc++.h>

using   namespace        std;

#define ko               exit(0);
#define nl               '\n'
#define ios              ios_base :: sync_with_stdio(0), cin.tie(0), cout.tie(0);
#define sz(s)            (int)s.size()
#define all(s)           s.begin(), s.end()
#define oll(s, n, c)     (s) + (c), s + (n) + c
#define pb               push_back
#define bb               begin()
#define ee               end()
#define ff               first
#define ss               second
#define pii              pair<int, int>
//#define for(i, l, r)  for(int (i) = (l); i <= (r); ++i)

typedef long long ll;
typedef double db;

const int N = 1e5 + 777;
const int M = INT_MAX;

int n;
double a[N], b[N];
double c[N];
int main(){

     ios

     cin >> n;
     for(int i = 1; i <= n; ++i){
          cin >> a[i] >> b[i];
     }
     sort(oll(a, n, 1));
     sort(oll(b, n, 1));
     reverse(oll(a, n, 1));
     reverse(oll(b, n, 1));
     for(int i = 1; i <= n; ++i){
          c[i] = c[i - 1] + a[i];
     }
     double ans = 0;
     for(int i = 1; i <= n; ++i){
          int q = i;
          double w = 0;
          for(int j = 1; j <= n; ++j){
               q++;
               w += b[j];
               if(c[i] - (double) q <= (double)0 || w - (double) q <= (double)0 ){
                    break;
               }
               ans = max(ans, min(c[i] - (double)q, w - (double)q));
          }
     }
     cout << fixed << setprecision(5) << (double)ans;
     return 0;
}

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