Submission #78686

#	Time	Username	Problem	Language	Result	Execution time	Memory
78686		Saboon	Stove (JOI18_stove)	C++14	100 / 100	34 ms	10384 KiB

stove

#include <iostream>
#include <queue>
#include <bitset>
#include <stack>
#include <vector>
#include <cstring>
#include <cmath>
#include <unordered_map>
#include <map>
#include <set>
#include <algorithm>
#include <iomanip>
#define prime first
#define alpha second
#define PB push_back
#define PF push_front
#define MP make_pair

using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;
typedef unsigned long long ull;

const int maxn = 1e5 + 100;

vector <int> arr;
int t[maxn];

int main (){
    ios_base::sync_with_stdio (false);
    int n, k;
    cin >> n >> k;
    for (int i = 1; i <= n; i++) {
        cin >> t[i];
        if (i > 1)
            arr.PB (t[i] - t[i - 1] - 1);
    }
    sort (arr.begin(), arr.end(), greater <int> ());
    ll ans = 0;
    for (int i = 0; i < k - 1; i++)
        ans += arr[i];
    cout << t[n] - t[1] + 1 - ans << endl;
}

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