제출 #819109

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
819109		LeVanThuc	Stove (JOI18_stove)	C++17	0 / 100	0 ms	212 KiB

stove

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define fi first
#define se second
#define p(x,y) pair<ll,ll>(x,y)
#define BIT(i,x) ((x>>i)&1)
#define MASK(x) (1<<x)
#define ld long double
#define __builtin_popcount __builtin_popcountll
#define pll pair<ll,ll>
template<class T1,class T2>
bool maximize(T1 &x,const T2 &y)
{
    if(x<y)
    {
        x=y;
        return 1;
    }
    return 0;
}
template<class T1,class T2>
bool minimize(T1 &x,const T2 &y)
{
    if(x>y)
    {
        x=y;
        return 1;
    }
    return 0;
}
void online()
{
    std::ios_base::sync_with_stdio(0);
    cin.tie(0);
//#ifndef ONLINE_JUDGE
//    freopen("input.inp", "r", stdin);
//    freopen("output.out","w", stdout);
//#else
//#endif
}
const ll M=1e9,N=1e5+10;
ll a[N],n,k;
int main()
{
    online();
    cin>>n>>k;
    vector<ll> vt;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
        if(i>1) vt.push_back(-a[i]+a[i-1]+1);
    }
    ll ans=n;
    sort(vt.begin(),vt.end());
    k--;
    while(k--)
    {
        ans-=vt.back();
        vt.pop_back();
    }
    cout<<ans;
}

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