Submission #1147634

#	Time	Username	Problem	Language	Result	Execution time	Memory
1147634		aqxa	Stove (JOI18_stove)	C++17	100 / 100	12 ms	968 KiB

stove

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int main() {
    cin.sync_with_stdio(0);
    cin.tie(0);
    int n,k,a;
    vector<int> gaps;
    cin >> n >> k;
    int last = -1;
    int first = -1;
    while (n--) {
        cin >> a;
        if (last == -1) {
            last = a+1;
            first = a;
        } else {
            gaps.push_back(a-(last));
        }
        last = a + 1;
    }
    a = a - first + 1;
    sort(gaps.begin(),gaps.end(),greater<int>());
    k-=1;
    for (int i = 0; i <k;i++){
        a -= gaps[i];
    }
    cout << a << "\n";
}

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