답안 #556055

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
556055 2022-05-02T09:27:51 Z HeatDroppa Stove (JOI18_stove) C++14
50 / 100
1000 ms 3628 KB
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll lim=1e5+4;
const ll inf=1e18;
vector<ll> dp_new;
vector<ll> dp_old;
ll t[lim];
ll n,k;
ll cost(ll l,ll r)
{
    return t[r]+1-t[l];
}
void solve(ll l,ll r,ll optl,ll optr)
{
    if(l>r) return ;
    ll med=(l+r)>>1;
    pair<ll,ll> bst={inf,-1};
    for(ll i=optl;i<=min(med,optr);++i)
        bst=min(bst,{dp_old[i-1]+cost(i,med),i});
    ll opt=bst.second;
    dp_new[med]=bst.first;
    solve(l,med-1,optl,opt);
    solve(med+1,r,opt,optr);
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0),cout.tie(0);
    cin>>n>>k;
    dp_new.resize(n+2,0);
    dp_old.resize(n+2,0);
    for(ll i=1;i<=n;++i)
        cin>>t[i];
    for(ll i=1;i<=n;++i)
        dp_old[i]=cost(1,i);
    for(ll i=2;i<=k;++i)
        solve(1,n,1,n),
        swap(dp_old,dp_new);
    cout<<dp_old[n]<<'\n';
    return 0;
}
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 7 ms 340 KB Output is correct
12 Correct 72 ms 416 KB Output is correct
13 Correct 114 ms 432 KB Output is correct
14 Correct 141 ms 420 KB Output is correct
15 Correct 145 ms 416 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 7 ms 340 KB Output is correct
12 Correct 72 ms 416 KB Output is correct
13 Correct 114 ms 432 KB Output is correct
14 Correct 141 ms 420 KB Output is correct
15 Correct 145 ms 416 KB Output is correct
16 Correct 26 ms 3544 KB Output is correct
17 Correct 156 ms 3628 KB Output is correct
18 Execution timed out 1079 ms 3576 KB Time limit exceeded
19 Halted 0 ms 0 KB -