oj.uz

Submission #865413

# Submission time Handle Problem Language Result Execution time Memory
865413 2023-10-24T08:04:30 Z vjudge1 Sure Bet (CEOI17_sure) C++17
0 / 100
 1 ms 4444 KB 
#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;

typedef long long ll;
typedef long double ld;

#define all(x) x.begin(),x.end()
#define pb push_back
#define ent "\n"

const int maxn = (int)3e5 + 13;
const ll inf = (long long)1e18 + 20;
const int mod = (int)1e9 + 7;

int n;
ld a[maxn],b[maxn];
ld pref[maxn];

int get(int x,int y){
	int ans = x / pow(4,y);
	ans %= 4;
	return ans;
}

void solve(){
	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);
	ld mx =0 ,sum = 0,sum1 = 0;
	for(int i = n ; i >= 1 ; i --){
		sum += a[i];
		int kol = (n - i + 1) + 1;
		mx = max(mx,min(sum,b[n]) - kol);
	}
	for(int i = n ; i >= 1 ; i --){
		sum1 += b[i];
		int kol = (n - i + 1) + 1;
		mx = max(mx,min(sum1,a[n]) - kol);
	}
	printf("%.4lf",(double)mx);
}

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	int t = 1;
	//cin >> t;
	while(t --){
		solve();
	}
	return 0;
}

Subtask #1
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Incorrect 1 ms 4444 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Incorrect 1 ms 4444 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Incorrect 1 ms 4444 KB Output isn't correct
4 Halted 0 ms 0 KB -