#include <bits/stdc++.h>
using namespace std;
typedef int ll;
typedef double ld;
const ll mod=1e9+7;
#define endl '\n'
int32_t main()
{
//freopen("jumping.in","r",stdin);
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
ll n,k;
cin>>n>>k;
vector<ll>v;
ll arr[n];
for(int i=0;i<n;i++)cin>>arr[i];
ll ans=arr[n-1]+1-arr[0];
for(int i=1;i<n;i++)
{
v.push_back(arr[i]+1-arr[i-1]);
}
sort(v.rbegin(),v.rend());
for(int i=0;i<k-1;i++)
{
ans-=v[i];
ans+=2;
}
cout<<ans;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
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 |
1 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 |
# |
결과 |
실행 시간 |
메모리 |
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 |
1 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 |
# |
결과 |
실행 시간 |
메모리 |
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 |
1 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 |
16 ms |
1356 KB |
Output is correct |
17 |
Correct |
16 ms |
1368 KB |
Output is correct |
18 |
Correct |
16 ms |
1348 KB |
Output is correct |
19 |
Correct |
17 ms |
1368 KB |
Output is correct |
20 |
Correct |
16 ms |
1368 KB |
Output is correct |
21 |
Correct |
18 ms |
1352 KB |
Output is correct |
22 |
Correct |
16 ms |
1368 KB |
Output is correct |
23 |
Correct |
17 ms |
1348 KB |
Output is correct |
24 |
Correct |
16 ms |
1368 KB |
Output is correct |