Submission #587109

#	Time	Username	Problem	Language	Result	Execution time	Memory
587109		proma	Stove (JOI18_stove)	C++17	0 / 100	1 ms	328 KiB

stove

#include <bits/stdc++.h>

#define int long long
#define see(x) cout<<#x<<"="<<x<<"\n";
#define endl "\n"

using namespace std;

const int N = 1e5+5;

int n, k, t[N];

int32_t main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
/*
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
*/

    cin >> n >> k;

    vector <pair <int, int>> stop;
    for (int i = 0; i < n; i ++) {
        cin >> t[i];
    }
    for (int i = 0; i < n; i ++) {
        if (i + 1 < n) {
            stop.push_back({t[i+1] - t[i], t[i]+1});
        }
    }

    sort(stop.rbegin(), stop.rend());

    vector <int> v;
    for (int i = 0; i < k - 1; i ++) {
        v.push_back(stop[i].second);
    }
    v.push_back(t[n-1] + 1);
    sort(v.begin(), v.end());

    int flag = 0, res = 0, pos = 0;
    for (int i = 0; i < n; i ++) {
        if (v[pos] < t[i]) {
            pos ++;
            flag = 0;
        }
        if (!flag) {
            res += v[pos] - t[i];
            flag = 1;
        }
    }

    cout << res << endl;

    return 0;
}

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