oj.uz

Submission #865164

# Submission time Handle Problem Language Result Execution time Memory
865164 2023-10-24T06:12:14 Z vjudge1 Sure Bet (CEOI17_sure) C++17
0 / 100
 1 ms 2396 KB 
/*
   (( `'-""``""-'` ))
     )-__-_.._-__-(
   / --- (o _ o) --- \
   \ .-* ( .0. ) *-. /
   _'-. ,_ '=' _, .-'_
  / `;#'#'# - #'#'#;` \
 \_)) -----'#'----- ((_/
      # --------- #
      '# ------- #'
  /..-'# ------- #'-.\
  _\...-\'# -- #'/-.../_
  ((____)- '#' -(____))
    art by - Vinni01 / luchi abi
 
    cout << fixed << setprecision(6) << x;
    freopen ( "sum.in", "r", stdin )
*/
//#pragma GCC optimize("Ofast")
//#pragma GCC target("avx,avx2,fma")
//#pragma GCC optimization("unroll-loops")
#include <map>
#include <set>
#include <list>
#include <cmath>
#include <ctime>
#include <deque>
#include <queue>
#include <stack>
#include <string>
#include <bitset>
#include <cstdio>
#include <limits>
#include <vector>
#include <climits>
#include <cstring>
#include <cstdlib>
#include <fstream>
#include <numeric>
#include <sstream>
#include <cassert>
#include <iomanip>
#include <iostream>
#include <algorithm>
#include <stdio.h>
#include <fstream>
#include <unordered_map>
using namespace std ;
#define ll int
#define ld double
#define ff first
#define ss second
#define pb push_back 
#define pf push_front
#define UseOFF ios_base::sync_with_stdio(0);cin.tie(0), cout.tie(0)
#define sz size
#define ins insert
#define new jweijofdg
const ll N = 1e5 + 111 ;
const ll k = 400 ;
ld a[ N ], b[ N ] ;
ld p[ N ], s[ N ] ;
ld ans = 0.00 ;
signed main()
{
    UseOFF ;
    ll n, m ;
    cin >> n ;
    for( int i = 1 ; i <= n ; i++ )
    {
    	cin >> a[ i ] >> b[ i ] ;
    }
    sort( a + 1, a + n + 1 ) ;
    sort( b + 1, b + n + 1 ) ;
    reverse( a + 1, a + n + 1 ) ;
    reverse( b + 1, b + n + 1 ) ;
    for( int i = 1 ; i <= n ; i++ )
    {
    	p[ i ] = a[ i ] + p[ i - 1 ] ;
    	s[ i ] = b[ i ] + s[ i - 1 ] ;
    }
    vector < ll > v ;
    ld ans = 0 ;
    ld fir = 0, sec = 0 ;
    for( int i = 3 ; i <= n ; i++ )
    {
    	for( int j = 0 ; j <= i ; j++ )
    	{
    		ld x = p[ j ], y = s[ i - j ] ;
     		ld d = min( x - i, y - i ) ;
     		//cout << x << " " << y << " " << d << '\n' ; 
    		ans = max( ans, d ) ;
    	}
    }
    printf("%.4lf",(double)ans);
}

Compilation message

sure.cpp: In function 'int main()':
sure.cpp:67:11: warning: unused variable 'm' [-Wunused-variable]
   67 |     ll n, m ;
      |           ^
sure.cpp:84:8: warning: unused variable 'fir' [-Wunused-variable]
   84 |     ld fir = 0, sec = 0 ;
      |        ^~~
sure.cpp:84:17: warning: unused variable 'sec' [-Wunused-variable]
   84 |     ld fir = 0, sec = 0 ;
      |                 ^~~

Subtask #1
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Incorrect 1 ms 2396 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Incorrect 1 ms 2396 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Incorrect 1 ms 2396 KB Output isn't correct
3 Halted 0 ms 0 KB -