oj.uz

답안 #881786

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
881786 2023-12-01T22:42:13 Z andro Stove (JOI18_stove) C++14
100 / 100
 18 ms 4060 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;
signed main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n,k;
    cin>>n>>k;
    int a[n+1];
    for(int i=1;i<=n;i++)cin>>a[i];
    int A[n+1];
    for(int i=0;i<=n;i++)A[i]=0;
    A[n]=1;
    int ans=0;
    ans+=a[n]+1-a[1];
    k--;
    /*
    while(k--){
        vector<pair<int,int>>v;
        int suf[n+1];
        suf[n]=n;
        for(int i=n-1;i>=1;i--){
            if(A[i])suf[i]=i;
            else suf[i]=suf[i+1];
        }
        int pret=1;
        for(int i=1;i<=n;i++){
            if(A[i]){
                pret=i;
                continue;
            }
            int R=ans;
            int sl=suf[i];
            //R+=-(a[sl]+1-a[pret+1])+a[sl]+1-a[i+1]+a[i]+1-a[pret+1];
            R+=a[i]-a[i+1]+1;
            //R-=a[sl]+1-a[pret+1];
            //R+=a[sl]+1-a[i+1];
            //R+=a[i]+1-a[pret+1];
            v.push_back({R,i});
        }
        sort(v.begin(),v.end());
        int b=v[0].second;
        A[b]=1;
        int sl=-1;
        for(int i=b+1;i<=n;i++){
            if(A[i]){
                sl=i;
                break;
            }
        }
        pret=1;
        for(int i=1;i<b;i++){
            if(A[i]){
                pret=i;
            }
        }
        //ans-=a[sl]+1-a[pret+1];
        //ans+=a[sl]+1-a[b+1];
        //ans+=a[b]+1-a[pret+1];
        //ans+=-(a[sl]+1-a[pret+1])+a[sl]+1-a[b+1]+a[b]+1-a[pret+1];
        ans+=-a[b+1]+a[b]+1;
    }*/
    vector<int>V;
    for(int i=1;i<n;i++){
        V.push_back(a[i]-a[i+1]+1);
    }
    sort(V.begin(),V.end());
    for(int i=0;i<k;i++)ans+=V[i];
    cout<<ans;
}
/*
a[i]+1-a[pret];
pret=i+1;

*/

Compilation message

stove.cpp: In function 'int main()':
stove.cpp:11:9: warning: variable 'A' set but not used [-Wunused-but-set-variable]
   11 |     int A[n+1];
      |         ^

Subtask #1
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 424 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct

Subtask #2
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 424 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct

Subtask #3
50.0 / 50.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 424 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 15 ms 3804 KB Output is correct
17 Correct 15 ms 3804 KB Output is correct
18 Correct 15 ms 3708 KB Output is correct
19 Correct 16 ms 4060 KB Output is correct
20 Correct 16 ms 4060 KB Output is correct
21 Correct 15 ms 4060 KB Output is correct
22 Correct 15 ms 4060 KB Output is correct
23 Correct 18 ms 4060 KB Output is correct
24 Correct 15 ms 4056 KB Output is correct