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Submission #122754

# Submission time Handle Problem Language Result Execution time Memory
122754 2019-06-29T08:38:08 Z davitmarg Sure Bet (CEOI17_sure) C++17
60 / 100
 2000 ms 1912 KB 
/*DavitMarg*/
#include <iostream>
#include <algorithm>
#include <cmath>
#include <vector>
#include <string>
#include <cstring>
#include <map>
#include <unordered_map>
#include <bitset>
#include <set>
#include <queue>
#include <deque>
#include <stack>
#include <iterator>
#include <ctype.h>
#include <stdlib.h>
#include <cassert>
#include <fstream>
#define mod 1000000007ll
#define LL long long
#define LD long double
#define MP make_pair
#define PB push_back
#define all(v) v.begin(),v.end()
using namespace std;

int n,k;
double a[100005],b[100005],sx,sy,ans=0;

int main()
{
    cin>>n;
    for(int i=1;i<=n;i++)
		cin>>a[i]>>b[i];
    sort(a+1,a+1+n);
    sort(b+1,b+1+n);
    reverse(a+1,a+1+n);
    reverse(b+1,b+1+n);
    for(int i=0;i<=n;i++)
	{
        sx+=a[i];
        k=0;
        sy=0;
        while(k<n && min(sx,sy)-(double)i-(double)k<=min(sx,sy+b[k+1])-(double)i-(double)k-1.0)
		{
            k++;
            sy+=b[k];
		}
			ans=max(ans,min(sx,sy)-(double)i-(double)k);
	}
    printf("%.4lf\n",ans);
	return 0;
}

/*

2
2 2
1 3



*/

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 256 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 6 ms 376 KB Output is correct
13 Correct 6 ms 376 KB Output is correct
14 Correct 6 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 6 ms 376 KB Output is correct

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 6 ms 376 KB Output is correct
13 Correct 6 ms 376 KB Output is correct
14 Correct 6 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 6 ms 376 KB Output is correct
17 Execution timed out 2041 ms 1912 KB Time limit exceeded
18 Halted 0 ms 0 KB -