#define fast ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0)
#include <bits/stdc++.h>
using namespace std;
#define sqr 500
#define mid (l+r)/2
#define pb push_back
#define ppb pop_back
#define fi first
#define se second
#define lb lower_bound
#define ub upper_bound
#define ins insert
#define era erase
#define C continue
#define mem(dp,i) memset(dp,i,sizeof(dp))
#define mset multiset
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pi;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<pi> vpi;
typedef vector<pll> vpll;
const ll mod=1000000007;//998244353;
const ll inf=1e18*4;
const ld pai=acos(-1);
ll n,k;
ll a[100009];
int main(){
cin>>n>>k;
for(int i=0;i<n;i++)cin>>a[i];
vll v;
ll sum=1;
for(int i=1;i<n;i++)v.pb(a[i]-a[i-1]),sum+=a[i]-a[i-1];
sort(v.begin(),v.end());
k--;
ll j=v.size()-1;
while(k--){
sum-=v[j--]-1;
}
cout<<sum<<endl;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
256 KB |
Output is correct |
| 2 |
Correct |
2 ms |
256 KB |
Output is correct |
| 3 |
Correct |
2 ms |
128 KB |
Output is correct |
| 4 |
Correct |
2 ms |
376 KB |
Output is correct |
| 5 |
Correct |
2 ms |
380 KB |
Output is correct |
| 6 |
Correct |
2 ms |
256 KB |
Output is correct |
| 7 |
Correct |
2 ms |
376 KB |
Output is correct |
| 8 |
Correct |
2 ms |
376 KB |
Output is correct |
| 9 |
Correct |
2 ms |
376 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
256 KB |
Output is correct |
| 2 |
Correct |
2 ms |
256 KB |
Output is correct |
| 3 |
Correct |
2 ms |
128 KB |
Output is correct |
| 4 |
Correct |
2 ms |
376 KB |
Output is correct |
| 5 |
Correct |
2 ms |
380 KB |
Output is correct |
| 6 |
Correct |
2 ms |
256 KB |
Output is correct |
| 7 |
Correct |
2 ms |
376 KB |
Output is correct |
| 8 |
Correct |
2 ms |
376 KB |
Output is correct |
| 9 |
Correct |
2 ms |
376 KB |
Output is correct |
| 10 |
Correct |
5 ms |
504 KB |
Output is correct |
| 11 |
Correct |
5 ms |
376 KB |
Output is correct |
| 12 |
Correct |
5 ms |
504 KB |
Output is correct |
| 13 |
Correct |
5 ms |
504 KB |
Output is correct |
| 14 |
Correct |
4 ms |
376 KB |
Output is correct |
| 15 |
Correct |
5 ms |
504 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
256 KB |
Output is correct |
| 2 |
Correct |
2 ms |
256 KB |
Output is correct |
| 3 |
Correct |
2 ms |
128 KB |
Output is correct |
| 4 |
Correct |
2 ms |
376 KB |
Output is correct |
| 5 |
Correct |
2 ms |
380 KB |
Output is correct |
| 6 |
Correct |
2 ms |
256 KB |
Output is correct |
| 7 |
Correct |
2 ms |
376 KB |
Output is correct |
| 8 |
Correct |
2 ms |
376 KB |
Output is correct |
| 9 |
Correct |
2 ms |
376 KB |
Output is correct |
| 10 |
Correct |
5 ms |
504 KB |
Output is correct |
| 11 |
Correct |
5 ms |
376 KB |
Output is correct |
| 12 |
Correct |
5 ms |
504 KB |
Output is correct |
| 13 |
Correct |
5 ms |
504 KB |
Output is correct |
| 14 |
Correct |
4 ms |
376 KB |
Output is correct |
| 15 |
Correct |
5 ms |
504 KB |
Output is correct |
| 16 |
Correct |
85 ms |
3276 KB |
Output is correct |
| 17 |
Correct |
85 ms |
3300 KB |
Output is correct |
| 18 |
Correct |
85 ms |
3184 KB |
Output is correct |
| 19 |
Correct |
85 ms |
3184 KB |
Output is correct |
| 20 |
Correct |
85 ms |
3308 KB |
Output is correct |
| 21 |
Correct |
85 ms |
3184 KB |
Output is correct |
| 22 |
Correct |
84 ms |
3184 KB |
Output is correct |
| 23 |
Correct |
84 ms |
3184 KB |
Output is correct |
| 24 |
Correct |
84 ms |
3284 KB |
Output is correct |
