Submission #1014736

#	Time	Username	Problem	Language	Result	Execution time	Memory
1014736		Akshat369	Stove (JOI18_stove)	C++17	100 / 100	20 ms	3368 KiB

stove

#include <bits/stdc++.h>

using namespace std;
#define int long long
#define INF (int)1e18
#define endl '\n'
const int mod = 1000 * 1000 * 1000 + 7;
const int N = 100005;
#define f first
#define s second
#define rep(i, a, b) for(int i = (a); i < (b); i++)
#define rrep(i, a, b) for(int i = (a); i > (b); i--)
#define vi vector<int>
#define pii pair<int, int>
#define all(x) (x).begin(), (x).end()


void Solve() {
    int n , k;
    cin>>n>>k;
    vi a(n);
    for(int i = 0 ; i < n ;i++){
        cin>>a[i];
    }
    vi diff;
    for (int i = 0; i < n - 1; ++i) {
        diff.push_back(a[i+1]-a[i]-1);
    }
    sort(all(diff));
    int ans = n;
    int moves = n;
    int idx = 0;
    while(moves>k){
        ans += diff[idx++];
        moves--;
    }
    cout<<ans<<endl;
}

int32_t main() {
    auto begin = std::chrono::high_resolution_clock::now();
    ios_base::sync_with_stdio(false);
    cin.tie(0);



    int t = 1;
 //   cin >> t;
    for (int i = 1; i <= t; i++) {
        //cout << "Case #" << i << ": ";
        Solve();
    }
    auto end = std::chrono::high_resolution_clock::now();
    auto elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(end - begin);
    cerr << "Time measured: " << elapsed.count() * 1e-9 << " seconds.\n";
    return 0;
}

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