Submission #580922

#	Time	Username	Problem	Language	Result	Execution time	Memory
580922		web	Sure Bet (CEOI17_sure)	C++17	60 / 100	2085 ms	8016 KiB

sure

#include <numeric>
#include <bitset>
#include <unordered_map>
#include <unordered_set>
#include <map>
#include <algorithm>
#include <string>
#include <set>
#include <vector>
#include <iostream>
using namespace std;

void output(double p1, double p2)
{
    if(p1 < 0 ||p2<0)
         printf("%.4lf", (double)(0));
    else
        printf("%.4lf", (double)(min(p1, p2)));
}
int main()
{
    int n; cin>>n;
    vector<long double> odds1(n), odds2(n);
    for(int i = 0; i<n; ++i)
    {
        cin>>odds1[i]>>odds2[i];
    }
    sort(odds1.rbegin(), odds1.rend());
    sort(odds2.rbegin(), odds2.rend());
    vector<long double> prefSum1(n);
    vector<long double> prefSum2(n);
    prefSum1[0] = odds1[0];
    prefSum2[0] = odds2[0];
    for(int i  =1; i<n; ++i)
    {
        prefSum1[i] = prefSum1[i-1]+odds1[i];
        prefSum2[i] = prefSum2[i-1]+ odds2[i];
    }
    long double bestSureProf = 0;
    for(int i = 0; i<n; ++i)
    {
        for(int j = 0; j<n; ++j)
        {
            long double p1 = prefSum1[i]- (i+1) - (j+1);
            long double p2 = prefSum2[j] - (i+1)  - (j+1);
            if(min(p1,p2) > bestSureProf)
                bestSureProf = min(p1,p2);
        }
    }
    output(bestSureProf, bestSureProf);
    
    return 0;
}

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