Submission #1033573

#	Time	Username	Problem	Language	Result	Execution time	Memory
1033573		quannnguyen2009	Stove (JOI18_stove)	C++14	0 / 100	1 ms	348 KiB

stove

#include<bits/stdc++.h>
#define int long long
#define fi first
#define se second
#define pb push_back
#define ii pair<int, int>
#define sz(v) (int)v.size()
#define all(v) v.begin(), v.end()
using namespace std;

const int N=1e5+5, mod = 1e9+7, inf = 1e18;

int n, k;
int a[N];

signed main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin >> n >> k;
    for (int i=1; i<=n; i++) cin >> a[i];
    vector<int> b;
    for (int i=2; i<=n; i++) {
        b.pb(a[i]-a[i-1]-1);
    }
    sort(all(b), greater<int>());
    int cnt = 0;
    for (int i=0; i<k-1; i++) cnt += b[i];
    cout << a[n]-cnt;
}

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