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답안 #556116

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
556116 2022-05-02T11:19:32 Z HeatDroppa Stove (JOI18_stove) C++11
50 / 100
 1000 ms 2260 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int lim=1e5+4;
const ll inf=1e18;
ll dp_new[lim];
ll dp_old[lim];
int t[lim];
int n,k;
void solve(int l,int r,int optl,int optr)
{
    int med=(l+r)>>1;
    pair<ll,int> bst={inf,-1};
    for(int i=optl;i<=min(med,optr);++i)
        bst=min(bst,{dp_old[i-1]+t[med]-t[i]+1,i});
    dp_new[med]=bst.first;
    if(l<med) solve(l,med-1,optl,bst.second);
    if(med<r) solve(med+1,r,bst.second,optr);
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0),cout.tie(0);
    cin>>n>>k;
    for(int i=1;i<=n;++i)
        cin>>t[i],
        dp_old[i]=t[i]-t[1]+1;
    for(int i=2;i<=k;++i)
        solve(i,n,i,n),
        swap(dp_old,dp_new);
    cout<<dp_old[n]<<'\n';
    return 0;
}

Subtask #1
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 1876 KB Output is correct
3 Correct 2 ms 1876 KB Output is correct
4 Correct 2 ms 1876 KB Output is correct
5 Correct 2 ms 1876 KB Output is correct
6 Correct 2 ms 1876 KB Output is correct
7 Correct 2 ms 1876 KB Output is correct
8 Correct 2 ms 1876 KB Output is correct
9 Correct 0 ms 212 KB Output is correct

Subtask #2
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 1876 KB Output is correct
3 Correct 2 ms 1876 KB Output is correct
4 Correct 2 ms 1876 KB Output is correct
5 Correct 2 ms 1876 KB Output is correct
6 Correct 2 ms 1876 KB Output is correct
7 Correct 2 ms 1876 KB Output is correct
8 Correct 2 ms 1876 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 3 ms 1876 KB Output is correct
11 Correct 16 ms 1904 KB Output is correct
12 Correct 154 ms 1876 KB Output is correct
13 Correct 305 ms 1880 KB Output is correct
14 Correct 391 ms 1880 KB Output is correct
15 Correct 355 ms 1880 KB Output is correct

Subtask #3
0 / 50.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 1876 KB Output is correct
3 Correct 2 ms 1876 KB Output is correct
4 Correct 2 ms 1876 KB Output is correct
5 Correct 2 ms 1876 KB Output is correct
6 Correct 2 ms 1876 KB Output is correct
7 Correct 2 ms 1876 KB Output is correct
8 Correct 2 ms 1876 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 3 ms 1876 KB Output is correct
11 Correct 16 ms 1904 KB Output is correct
12 Correct 154 ms 1876 KB Output is correct
13 Correct 305 ms 1880 KB Output is correct
14 Correct 391 ms 1880 KB Output is correct
15 Correct 355 ms 1880 KB Output is correct
16 Correct 37 ms 2260 KB Output is correct
17 Correct 302 ms 2188 KB Output is correct
18 Execution timed out 1075 ms 2168 KB Time limit exceeded
19 Halted 0 ms 0 KB -