Submission #1190593

#	Time	Username	Problem	Language	Result	Execution time	Memory
1190593		akbarr	Stove (JOI18_stove)	C++20	0 / 100	0 ms	328 KiB

stove

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define run ios_base::sync_with_stdio(0);cin.tie(0);
#define F first
#define S second
#define endl '\n'
const int inf = 1e18+7;
const int sz = 1e5+5;
void solve() {
    int m,k;
    cin >> m >> k;
    int a[m+1];
    vector<int>diff;
    for(int i=1; i <= m;i++)    cin >> a[i];
    vector<int>t;
    for(int i = 1; i <= m;i++){
        t.push_back(a[i]);
        t.push_back(a[i]+1);
    }
    k--;
    for(int i=1; i < t.size();i++){
        diff.push_back(abs(t[i] - t[i-1]));
    }
    sort(diff.begin(),diff.end());
    reverse(diff.begin(),diff.end());
    int cost = 0;
    for(int i = 0;i < diff.size() & k > 0;i++){
        cost+=diff[i];
        k--;
    }
    sort(a+1,a+m+1);
    int time = a[m] - a[1] + 1;
    cout << time - cost << endl;
}
 
signed main() {
    run;
    int t = 1;
    //cin >> t;
    while (t--) {
        solve();
    }
}
// 11111100000

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