oj.uz

답안 #946969

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
946969 2024-03-15T08:47:00 Z Pacybwoah 별자리 3 (JOI20_constellation3) C++17
100 / 100
 342 ms 30364 KB 
#include<iostream>
#include<vector>
#include<algorithm>
#include<utility>
#include<set>
using namespace std;
typedef long long ll;
struct rng{
    ll val;
    int l,r,x,y;
    rng(ll _val,int _l,int _r,int _x,int _y){
        val=_val,l=_l,r=_r,x=_x,y=_y;
    }
};
bool operator< (const rng &a,const rng &b){
    return a.y<b.y;
}
vector<ll> bit;
void modify(int pos,ll num,int n){
    while(pos<=n){
        bit[pos]+=num;
        pos+=pos&-pos;
    }
}
ll quer(int pos){
    ll ans=0;
    while(pos>0){
        ans+=bit[pos];
        pos-=(pos&-pos);
    }
    return ans;
}
int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n;
    ll ans=0;
    cin>>n;
    vector<int> h(n+1),bases(n+1,-1);
    bit.resize(n+1);
    for(int i=1;i<=n;i++) cin>>h[i];
    vector<vector<int>> st(19,vector<int>(n+1));
    for(int i=0;i<20;i++){
        for(int j=(1<<i);j<min(1<<(i+1),n+1);j++){
            if(bases[j]==-1) bases[j]=i;
        }
    }
    for(int i=1;i<=n;i++) st[0][i]=h[i];
    for(int i=1;i<19;i++){
        for(int j=1;j<=n;j++) st[i][j]=max(st[i-1][j],st[i-1][min(j+(1<<(i-1)),n)]);
    }
    auto query=[&](int l,int r){
        int len=bases[r-l+1];
        return max(st[len][l],st[len][r-(1<<len)+1]);
    };
    int m;
    ll c;
    cin>>m;
    vector<rng> vec;
    for(int i=0;i<m;i++){
        int x,y;
        cin>>x>>y>>c;
        ans+=c;
        int lh,rh,l=1,r=x;
        while(l<r){
            int mid=((l+r)>>1);
            if(query(mid,x)>=y) l=mid+1;
            else r=mid;
        }
        lh=l,l=x,r=n;
        while(l<r){
            int mid=((l+r)>>1)+1;
            if(query(x,mid)>=y) r=mid-1;
            else l=mid;
        }
        rh=l;
        vec.emplace_back(c,lh,rh,x,y);
    }
    sort(vec.begin(),vec.end());
    set<pair<int,int>> s;
    vector<ll> dp(m);
    int cnt=0;
    auto mod=[&](int l,int r,ll num){
        modify(l,num,n);
        modify(r+1,-num,n);
    };
    for(auto &[val,l,r,x,y]:vec){
        ll sum=0;
        while(!s.empty()){
            auto iter=s.lower_bound(make_pair(l,-1));
            if(iter==s.end()||(*iter).first>r) break;
            mod(vec[(*iter).second].l,vec[(*iter).second].r,-dp[(*iter).second]);
            sum+=dp[(*iter).second];
            s.erase(iter);
        }
        mod(l,r,sum);
        dp[cnt]=max(quer(x)+val,sum);
        cnt++;
        s.insert(make_pair(x,cnt-1));
    }
    for(auto [x,id]:s){
        ans-=dp[id];
    }
    //for(int i=0;i<m;i++) cout<<i<<" "<<vec[i].x<<" "<<vec[i].y<<' '<<dp[i]<<"\n";
    cout<<ans<<"\n";
}

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 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 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 520 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 600 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 456 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct

Subtask #2
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 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 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 520 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 600 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 456 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 2 ms 604 KB Output is correct
24 Correct 2 ms 604 KB Output is correct
25 Correct 2 ms 600 KB Output is correct
26 Correct 2 ms 600 KB Output is correct
27 Correct 2 ms 604 KB Output is correct
28 Correct 2 ms 604 KB Output is correct
29 Correct 2 ms 724 KB Output is correct
30 Correct 2 ms 604 KB Output is correct
31 Correct 2 ms 604 KB Output is correct
32 Correct 2 ms 604 KB Output is correct
33 Correct 1 ms 604 KB Output is correct
34 Correct 2 ms 604 KB Output is correct
35 Correct 2 ms 604 KB Output is correct
36 Correct 2 ms 768 KB Output is correct
37 Correct 2 ms 604 KB Output is correct
38 Correct 1 ms 604 KB Output is correct
39 Correct 2 ms 600 KB Output is correct
40 Correct 1 ms 604 KB Output is correct
41 Correct 2 ms 604 KB Output is correct
42 Correct 2 ms 704 KB Output is correct
43 Correct 2 ms 604 KB Output is correct
44 Correct 2 ms 604 KB Output is correct

Subtask #3
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 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 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 520 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 600 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 456 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 2 ms 604 KB Output is correct
24 Correct 2 ms 604 KB Output is correct
25 Correct 2 ms 600 KB Output is correct
26 Correct 2 ms 600 KB Output is correct
27 Correct 2 ms 604 KB Output is correct
28 Correct 2 ms 604 KB Output is correct
29 Correct 2 ms 724 KB Output is correct
30 Correct 2 ms 604 KB Output is correct
31 Correct 2 ms 604 KB Output is correct
32 Correct 2 ms 604 KB Output is correct
33 Correct 1 ms 604 KB Output is correct
34 Correct 2 ms 604 KB Output is correct
35 Correct 2 ms 604 KB Output is correct
36 Correct 2 ms 768 KB Output is correct
37 Correct 2 ms 604 KB Output is correct
38 Correct 1 ms 604 KB Output is correct
39 Correct 2 ms 600 KB Output is correct
40 Correct 1 ms 604 KB Output is correct
41 Correct 2 ms 604 KB Output is correct
42 Correct 2 ms 704 KB Output is correct
43 Correct 2 ms 604 KB Output is correct
44 Correct 2 ms 604 KB Output is correct
45 Correct 328 ms 30144 KB Output is correct
46 Correct 320 ms 29232 KB Output is correct
47 Correct 293 ms 29244 KB Output is correct
48 Correct 321 ms 30364 KB Output is correct
49 Correct 292 ms 29292 KB Output is correct
50 Correct 285 ms 29528 KB Output is correct
51 Correct 298 ms 28800 KB Output is correct
52 Correct 334 ms 29752 KB Output is correct
53 Correct 342 ms 29372 KB Output is correct
54 Correct 244 ms 28176 KB Output is correct
55 Correct 244 ms 28540 KB Output is correct
56 Correct 232 ms 29272 KB Output is correct
57 Correct 243 ms 28176 KB Output is correct
58 Correct 225 ms 29244 KB Output is correct
59 Correct 224 ms 28256 KB Output is correct
60 Correct 133 ms 28596 KB Output is correct
61 Correct 279 ms 28856 KB Output is correct
62 Correct 228 ms 29468 KB Output is correct
63 Correct 261 ms 28912 KB Output is correct
64 Correct 278 ms 27508 KB Output is correct
65 Correct 238 ms 29204 KB Output is correct
66 Correct 313 ms 28352 KB Output is correct