Submission #1133330

#	Time	Username	Problem	Language	Result	Execution time	Memory
1133330		MunkhturErdenebat	Stove (JOI18_stove)	C++20	100 / 100	30 ms	1928 KiB

stove

#include<bits/stdc++.h>
#include<string.h>
#include <algorithm>
#include <stdlib.h>
 #define ll long long
using namespace std;
    ll a,b,c,d,e,f,m,i,j,n,h,g,l,r,ka,p,q,t[500005], k[500005];
    map<ll,ll> maa,mii,mee;
    vector<ll> vj,vo,vi;
int main(){
    cin>>a>>b;
    for(i=0 ; i<a ; i++){
        cin>>t[i];
        
    }
    b--;
    g=t[a-1]-t[0];
    q=g+1;
    for(i=1 ; i<a ; i++){
        k[i]=t[i]-t[i-1]-1;
    }
    sort(k+1,k+a);
    g=0;
    for(i=a-1 ; i>=max(p+1,a-b) ; i--){
        g+=k[i];
    }
    cout<<q-g<<endl;
    
}

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