Submission #1151779

#	Time	Username	Problem	Language	Result	Execution time	Memory
1151779		sodbayr	Stove (JOI18_stove)	C++20	100 / 100	20 ms	2244 KiB

stove

#include<bits/stdc++.h>
#define int long long
#define ss second
#define ff first
#define pb push_back
const int mxn=1e6+5;
const int mod=998244353;
using namespace std;
int n,k;
int a[mxn+7],f[mxn+7];
signed main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin>>n>>k;
    for(int i=1; i<=n; i++)
    {cin>>a[i];
    }
    int s=a[n]-a[1]+1;
    vector<int> v;
    for(int i=1; i<n; i++)
    {v.pb(a[i+1]-a[i]-1);
    }
    sort(v.begin(),v.end(),greater<int>());
    for(int i=0; i<k-1; i++)
    {s-=v[i];
    }
    
    cout<<s;
}

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