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Submission #790253

# Submission time Handle Problem Language Result Execution time Memory
790253 2023-07-22T13:24:41 Z n3rm1n Stove (JOI18_stove) C++17
100 / 100
 15 ms 2260 KB 
#include<bits/stdc++.h>
#define endl '\n'
using namespace std;
const long long MAXN = 1e5 + 10;

void speed()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
}

long long n, k, a[MAXN];

void read()
{
    cin >> n >> k;
    for (long long i = 1; i <= n; ++ i)
        cin >> a[i];
}

void solve()
{
    vector < long long > g;
    long long ans = a[n] - a[1] + 1;
    for (long long i = 2; i <= n; ++ i)
    {
        g.push_back(- (a[i] - a[i-1] - 1));
    }
    sort(g.begin(), g.end());
    long long i = 0;
    while(i < k-1)
    {
        ans += g[i];
        i ++;
    }
    cout << ans << endl;
}

int main()
{
    speed();

    read();
    solve();
    return 0;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 14 ms 2164 KB Output is correct
17 Correct 14 ms 2260 KB Output is correct
18 Correct 15 ms 2260 KB Output is correct
19 Correct 14 ms 2260 KB Output is correct
20 Correct 14 ms 2260 KB Output is correct
21 Correct 14 ms 2260 KB Output is correct
22 Correct 14 ms 2260 KB Output is correct
23 Correct 14 ms 2260 KB Output is correct
24 Correct 15 ms 2260 KB Output is correct