Submission #1124815

#	Time	Username	Problem	Language	Result	Execution time	Memory
1124815		vs358	Stove (JOI18_stove)	C++20	100 / 100	16 ms	2356 KiB

stove

#include <bits/stdc++.h>
#define int long long
#define ull unsigned long long
#define ld long double
#define INFF 300000
#define INF (LLONG_MAX - 100)
#define mp make_pair
#define DEBUG(x) cout << "DEBUG: " << x << endl;
#define drugs ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
using namespace std;
typedef pair<int, int> pi;
typedef pair<int, pi> ipi;
typedef pair<pi, int> pii;

signed main(){
    drugs;
    int n, k;
    cin >> n >> k;
    int ans = n;
    vector<int> arr(n);
    vector<int> diff;
    for(int i = 0; i < n; i++){
        cin >> arr[i];
        if(i != 0) diff.push_back(arr[i] - arr[i-1]);
    }
    sort(diff.begin(), diff.end());

    for(int i = 0; i < n-k; i++){
        ans += diff[i] - 1;
    }
    cout << ans << '\n';

}

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