답안 #409972

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
409972	2021-05-21T20:04:16 Z	jenkinsser	Stove (JOI18_stove)	C++17	100 / 100	27 ms	2212 KB

stove

#include <bits/stdc++.h>
#define pb push_back
#define mp make_pair
#define st first
#define nd second
#define pii pair<int,int>
#define piii pair<int,pii>
#define sp " "
#define nl "\n"
#define all(x) x.begin(),x.end()
#define fastio() ios_base::sync_with_stdio(0);cin.tie(0);
#define ll long long
 
using namespace std;
 
const int N = 1e5+5;
const int INF = 1e9+5;
const int mod = 1e9+7;

int n,k,a[N],ans;

signed main(){
    fastio()
    cin >> n >> k;
    vector<int> v;
    for(int i=1;i<=n;i++){
        cin >> a[i];
        if(i>1){
            ans+=a[i]-a[i-1];
            v.pb(a[i]-a[i-1]);
        }
    }
    sort(v.rbegin(),v.rend());
    for(int i=0;i<k-1;i++){
        ans-=v[i];
    }
    cout << ans+k << nl;
}

Subtask #1

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	320 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct

Subtask #2

30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	320 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	328 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	2 ms	332 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct

Subtask #3

50.0 / 50.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	320 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	328 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	2 ms	332 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	27 ms	2124 KB	Output is correct
17	Correct	22 ms	2136 KB	Output is correct
18	Correct	21 ms	2112 KB	Output is correct
19	Correct	24 ms	2124 KB	Output is correct
20	Correct	22 ms	2084 KB	Output is correct
21	Correct	22 ms	2124 KB	Output is correct
22	Correct	22 ms	2188 KB	Output is correct
23	Correct	21 ms	2212 KB	Output is correct
24	Correct	26 ms	2124 KB	Output is correct