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Submission #498287

# Submission time Handle Problem Language Result Execution time Memory
498287 2021-12-24T19:37:12 Z OrazB Stove (JOI18_stove) C++14
0 / 100
 1 ms 316 KB 
#include <bits/stdc++.h>
#define N 100005
#define ll long long int
#define pii pair <int, int>
#define pb push_back
#define ff first
#define ss second
using namespace std;

ll n, k, ans, a[N], m[N];
vector <pii> v;

int main ()
{
	ios::sync_with_stdio(false);
	cin.tie(0);
	cin >> n >> k;
	for (int i = 1; i <= n; i++) cin >> a[i];
	sort(a + 1, a + n + 1);
	for (int i = 1; i < n; i++) v.pb({a[i + 1] - a[i], i});
	sort(v.begin(), v.end());
	reverse(v.begin(), v.end());
	for (int i = 0; i < k - 1; i++) m[v[i].ss] = 1;
	for (int i = 2; i <= n; i++){
		if (i == 2){
			if (m[i - 1]) ans += 2;
			else ans += a[i] - a[i - 1] + 1;
			continue;
		}
		if (m[i - 1]) ans++;
		else ans += a[i] - a[i - 1];
	}
	cout << ans;
}

Subtask #1
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 316 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Incorrect 0 ms 204 KB Output isn't correct

Subtask #2
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 316 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Incorrect 0 ms 204 KB Output isn't correct

Subtask #3
0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 316 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Incorrect 0 ms 204 KB Output isn't correct