Submission #1033934

#	Time	Username	Problem	Language	Result	Execution time	Memory
1033934		vjudge1	Stove (JOI18_stove)	C++17	0 / 100	0 ms	348 KiB

stove

#include<bits/stdc++.h>
#define ll long long
using namespace std;

const int MAXN = 1e5 + 5;

ll n,k,res;
ll a[MAXN],pre[MAXN];

void solve(){
    for(int i = 2;i<=n;i++){
        pre[i] = a[i] - a[i-1];
    }
    sort(a+2,a+n+1);
    for(int i = 2;i<=n - k;i++){
        res += pre[i];
    }
    res += k;
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);

    cin>>n>>k;
    for(int i = 1;i<=n;i++) cin>>a[i];

    solve();
    cout<<res;

    return 0;
}

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