Submission #375179

#	Time	Username	Problem	Language	Result	Execution time	Memory
375179		Edbert2397	Stove (JOI18_stove)	C++14	100 / 100	27 ms	2284 KiB

stove

/*
~2021~
*/
# include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
#define fi first
#define se second
typedef long long ll;
#define pii pair<int,int>
const int N = 2e5 + 5;
const int INF = 1e9;
const ll mod = 1e9+7;
priority_queue<int>pq;
int n,k,arr[N];
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    //freopen(,r,stdin);
    //freopen(,w,stdout);
    cin>>n>>k;
    for(int i = 1;i<=n;i++){
        cin>>arr[i];
        if(i > 1)pq.push(arr[i] - arr[i-1] - 1);
    }
    int ans = arr[n] - arr[1] + 1;
    for(int i = 1;i<=k-1;i++){
        ans -= pq.top();
        pq.pop();
    }
    cout<<ans<<endl;
}

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