Submission #545508

#	Time	Username	Problem	Language	Result	Execution time	Memory
545508		MohamedAliSaidane	Stove (JOI18_stove)	C++14	100 / 100	25 ms	3212 KiB

stove

#include<bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef long double ld;

typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef pair<ld,ld> pld;

typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<pii> vpi;
typedef vector<pll> vpl;

#define pb push_back
#define popb pop_back
#define pf push_front
#define popf pop_front
#define all(x) (x).begin(),(x).end()
#define ff first
#define ss second

int nx[4] = {0,0,1,-1}, ny[4] = {1,-1,0,0};
ll gcd(ll a , ll b) {return b ? gcd(b , a % b) : a ;}
ll lcm(ll a , ll b) {return (a * b) / gcd(a , b);}

int n, k;
vll A;
void solve()
{
    cin >> n >> k;
    A.assign(n,0);
    for(int i = 0; i < n ; i ++)
        cin >> A[i];
    sort(all(A));
    vll B;
    for(int i = 0; i < n - 1; i ++)
        B.pb(A[i+1] - A[i]);
    sort(all(B));
    ll ans = n;
    for(int i = 1; i <= n - k; i ++)
        ans += B[i-1]-1;
    cout << ans ;

}

int main()
{
    ios::sync_with_stdio(false);
    int tt  = 1;
    while(tt--)
        solve();
}

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