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Submission #152837

# Submission time Handle Problem Language Result Execution time Memory
152837 2019-09-09T23:59:02 Z erebos Wine Tasting (FXCUP2_wine) C++17
1 / 1
 78 ms 5356 KB 
#include <bits/stdc++.h>
using namespace std;
using ll=long long;

vector<int>arr;

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    int n, k;
    cin>>n>>k;
    for(int i=0; i<n; ++i) {
        int a;
        cin>>a;
        arr.push_back(a);
    }
    sort(arr.begin(), arr.end());
    ll ans=0;
    if(k%2==0) {
        for(int i=0; i<k/2; ++i) {
            ans+=arr[n-i-1];
        }
        for(int i=0; i<k/2-1; ++i) {
            ans-=arr[i];
        }
    } else {
        for(int i=0; i<k/2+1; ++i) {
            ans+=arr[n-i-1];
        }
        for(int i=0; i<k/2; ++i) {
            ans-=arr[i];
        }
    }
    cout<<ans;
}

Subtask #1
1.0 / 1.0

# 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 380 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 3 ms 504 KB Output is correct
14 Correct 3 ms 376 KB Output is correct
15 Correct 3 ms 504 KB Output is correct
16 Correct 3 ms 504 KB Output is correct
17 Correct 5 ms 632 KB Output is correct
18 Correct 7 ms 888 KB Output is correct
19 Correct 9 ms 888 KB Output is correct
20 Correct 9 ms 892 KB Output is correct
21 Correct 19 ms 1912 KB Output is correct
22 Correct 25 ms 1908 KB Output is correct
23 Correct 25 ms 1912 KB Output is correct
24 Correct 26 ms 1912 KB Output is correct
25 Correct 75 ms 5232 KB Output is correct
26 Correct 75 ms 5184 KB Output is correct
27 Correct 75 ms 5228 KB Output is correct
28 Correct 52 ms 5356 KB Output is correct
29 Correct 75 ms 5216 KB Output is correct
30 Correct 76 ms 5232 KB Output is correct
31 Correct 75 ms 5236 KB Output is correct
32 Correct 78 ms 5356 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 17 ms 1656 KB Output is correct