#include "bits/stdc++.h"
using namespace std;
#define int long long
signed main()
{
int n , k;
cin >> n >> k;
vector<int> a(n);
vector<int> b;
for (int i = 0; i < n; i++){
cin >> a[i];
if (i > 0)
b.push_back(a[i] - (a[i - 1]) - 1);
}
sort(b.rbegin() , b.rend());
int m = (int)b.size();
vector<int> pf(m);
pf[0] = b[0];
for (int i = 1; i < m; i++)
pf[i] = pf[i - 1] + b[i];
if (k == 1){
if (a[0] == 1)
cout << a[n - 1] - a[0] + 1 << "\n";
else cout << a[n - 1] - a[0] + 2;
}
else
cout << a[n - 1] - pf[k - 2] << "\n";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |