Submission #319448

#	Time	Username	Problem	Language	Result	Execution time	Memory
319448		vojin	Stove (JOI18_stove)	C++14	100 / 100	26 ms	2304 KiB

stove

#include <bits/stdc++.h>
#define FOR(n) for(int i = 0; i < n; i++)
#define ll long long

using namespace std;

int n,k,a[100000],b[100000];

int main()
{
    ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);cerr.tie(0);

    cin >> n >> k;
    FOR(n) cin >> a[i];
    sort(a,a+n);
    int ans = n;
    int m = 1;
    for(int i = 0; i < n -1;i ++) {b[i] = a[i+1]-a[i]-1;if(b[i]!=0)m++;}
    sort(b,b+n-1);
    int j = 0;
    int cnt = 0;
    while(cnt<m-k){
        if(b[j]!=0) ans += b[j],cnt++;
        j++;

    }
    cout << ans << endl;
}

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