Submission #237264

#	Time	Username	Problem	Language	Result	Execution time	Memory
237264		michao	Stove (JOI18_stove)	C++14	0 / 100	5 ms	384 KiB

stove

#include <bits/stdc++.h>
#define ll long long int
#define mp make_pair
#define pb push_back
#define ld long double
#define pii pair<int,int>
#define sz(x) (int)x.size()
#define piii pair<pii,pii>
#define precise cout<<fixed<<setprecision(10)
#define st first
#define nd second
#define ins insert
#define vi vector<int>
#define BOOST ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0)
using namespace std;
const int MAX=1e5+5;
const int inf=1e9+9;
int tab[MAX];
ll ans=0;
vi diff;
int32_t main()
{
  BOOST;
 int n,k;
 cin>>n>>k;
 int mini=inf,maxi=-inf;
 for (int i=1;i<=n;i++)cin>>tab[i],mini=min(mini,tab[i]),maxi=max(maxi,tab[i]);
 ans=maxi-mini+1;
 for (int i=2;i<=n;i++)diff.pb(tab[i]-tab[i-1]-1);
 sort(diff.begin(),diff.end(),greater<int>());
 k=(n-k-1);
 for (int i=0;i<k;i++)ans-=diff[i];
 cout<<ans;
  return 0;
}

• Subtask 1: 0 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50