#include <bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
#define ll long long
#define TIME (1.0 * clock() / CLOCKS_PER_SEC)
typedef pair<ll,ll> ii;
const ll maxn=300010;
ll n,p[maxn],a[maxn];
priority_queue<ii,vector<ii>,greater<ii>> q;
int root(int i)
{
if (p[i] == i) return i;
return root(p[i]);
}
void merge (long i,long j)
{
p[root(i)]=p[root(j)];
}
ll b[maxn],k;
int main()
{
ios_base :: sync_with_stdio(0);
cin.tie(0),cout.tie(0);
cin>>n>>k;
for (ll i=1;i<=n;i++) cin>>a[i];
sort (a+1,a+n+1);
for (ll i=1;i<n;i++) b[i]=a[i+1]-a[i];
ll res=0;
n--;
sort (b+1,b+n+1);
for (ll i=1;i<=n-k+1;i++)
res=res+b[i];
res+=k;
cout<<res;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
0 ms |
2396 KB |
Output is correct |
5 |
Correct |
1 ms |
2396 KB |
Output is correct |
6 |
Correct |
1 ms |
2396 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
0 ms |
2396 KB |
Output is correct |
5 |
Correct |
1 ms |
2396 KB |
Output is correct |
6 |
Correct |
1 ms |
2396 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
10 |
Correct |
1 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
2480 KB |
Output is correct |
12 |
Correct |
1 ms |
2396 KB |
Output is correct |
13 |
Correct |
1 ms |
2396 KB |
Output is correct |
14 |
Correct |
1 ms |
2396 KB |
Output is correct |
15 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
0 ms |
2396 KB |
Output is correct |
5 |
Correct |
1 ms |
2396 KB |
Output is correct |
6 |
Correct |
1 ms |
2396 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
10 |
Correct |
1 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
2480 KB |
Output is correct |
12 |
Correct |
1 ms |
2396 KB |
Output is correct |
13 |
Correct |
1 ms |
2396 KB |
Output is correct |
14 |
Correct |
1 ms |
2396 KB |
Output is correct |
15 |
Correct |
1 ms |
2396 KB |
Output is correct |
16 |
Correct |
16 ms |
5696 KB |
Output is correct |
17 |
Correct |
16 ms |
5708 KB |
Output is correct |
18 |
Correct |
15 ms |
5468 KB |
Output is correct |
19 |
Correct |
15 ms |
5700 KB |
Output is correct |
20 |
Correct |
17 ms |
5468 KB |
Output is correct |
21 |
Correct |
16 ms |
5468 KB |
Output is correct |
22 |
Correct |
15 ms |
5720 KB |
Output is correct |
23 |
Correct |
15 ms |
5468 KB |
Output is correct |
24 |
Correct |
16 ms |
5700 KB |
Output is correct |