oj.uz

답안 #927020

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
927020 2024-02-14T06:55:02 Z winter0101 별자리 3 (JOI20_constellation3) C++14
100 / 100
 470 ms 56396 KB 
#include<bits/stdc++.h>
using namespace std;
#define all(fl) fl.begin(),fl.end()
#define pb push_back
#define fi first
#define se second
#define for1(i,j,k) for(int i=j;i<=k;i++)
#define for2(i,j,k) for(int i=j;i>=k;i--)
#define for3(i,j,k,l) for(int i=j;i<=k;i+=l)
#define lb lower_bound
#define ub upper_bound
#define sz(a) (int)a.size()
#define pii pair<int,int>
#define pli pair<long long,int>
#define gcd __gcd
#define lcm(x,y) x*y/__gcd(x,y)
#define pil pair<int,long long>
const int maxn=2e5+9;
struct star{
int x,y;
long long val;
}a[maxn];
int b[maxn];
vector<int>cord[maxn];
struct line{
int l,r,id;
bool operator < (const line &p)const {
if (l==p.l)return r>p.r;
return l<p.l;
}
};
vector<int>g[maxn];
int n,m;
multiset<line>tmp;
void cartasian(int l,int r,int node){
while (!tmp.empty()){
auto u=*tmp.begin();
if (l<=u.l&&u.r<=r){
g[node].pb(u.id);
tmp.erase(tmp.begin());
cartasian(u.l,u.r,u.id);
}
else return;
}
}
int l[maxn],r[maxn];
long long f[maxn];
long long bit[maxn];
int in[maxn],out[maxn],tme=0;
void add(int pos,long long val){
for(;pos<=m;pos+=(pos-(pos&(pos-1))))bit[pos]+=val;
}
long long get(int pos){
long long sum=0;
for(;pos>=1;pos-=(pos-(pos&(pos-1))))sum+=bit[pos];
return sum;
}
void update(int l,int r,long long val){
add(l,val);
add(r+1,-val);
}
int st[maxn*4];
void update(int id,int l,int r,int u,int v,int val){
if (l>v||r<u||u>v)return;
if (u<=l&&r<=v){
st[id]=max(st[id],val);
return;
}
int mid=(l+r)>>1;
update(id<<1,l,mid,u,v,val);
update(id<<1|1,mid+1,r,u,v,val);
}
int get(int id,int l,int r,int u){
if (l>u||r<u)return 0;
int ans=st[id];
if (l==r)return ans;
int mid=(l+r)>>1;
ans=max({ans,get(id<<1,l,mid,u),get(id<<1|1,mid+1,r,u)});
return ans;
}
int rev[maxn];
void dfs(int u){
if (u)in[u]=++tme;
update(1,1,n,l[u],r[u],in[u]);
f[u]=a[u].val;
for (auto v:g[u]){
dfs(v);
}
long long ss=0;
for (auto v:g[u]){
ss+=f[v];
}
if (u){
update(in[u],in[u],ss);
for (auto v:g[u]){
update(in[v],out[v],ss-f[v]);
}
int pos=get(1,1,n,a[u].x);
f[u]+=get(pos);
}
f[u]=max(f[u],ss);
if (u)out[u]=tme;
}
signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    //freopen("temp.INP","r",stdin);
    //freopen("temp.OUT","w",stdout);
    cin>>n;
    for1(i,1,n)cin>>b[i];
    b[0]=b[n+1]=n;
    cin>>m;
    for1(i,1,m){
    cin>>a[i].x>>a[i].y>>a[i].val;
    cord[a[i].x].pb(i);
    }
    deque<int>t;
    t.pb(0);
    for1(i,1,n){
    while (!t.empty()&&b[t.back()]<=b[i])t.pop_back();
    t.pb(i);
    for(auto v:cord[i]){
    int l1=0,r1=sz(t)-1;
    l[v]=0;
    while (l1<=r1){
    int mid=(l1+r1)/2;
    if (b[t[mid]]>=a[v].y){
    l[v]=t[mid];
    l1=mid+1;
    }
    else r1=mid-1;
    }
    l[v]++;
    }
    }
    t.clear();
    t.pb(n+1);
    for2(i,n,1){
    while (!t.empty()&&b[t.back()]<=b[i])t.pop_back();
    t.pb(i);
    for(auto v:cord[i]){
    int l1=0,r1=sz(t)-1;
    r[v]=n+1;
    while (l1<=r1){
    int mid=(l1+r1)/2;
    if (b[t[mid]]>=a[v].y){
    r[v]=t[mid];
    l1=mid+1;
    }
    else r1=mid-1;
    }
    r[v]--;
    }
    }
    l[0]=1,r[0]=n;
    for1(i,1,m)tmp.insert({l[i],r[i],i});
    cartasian(1,n,0);
    dfs(0);
    long long sum=0;
    for1(i,1,m)sum+=a[i].val;
    cout<<sum-f[0];
}

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 14684 KB Output is correct
2 Correct 3 ms 14684 KB Output is correct
3 Correct 4 ms 14680 KB Output is correct
4 Correct 3 ms 14684 KB Output is correct
5 Correct 3 ms 14684 KB Output is correct
6 Correct 3 ms 14784 KB Output is correct
7 Correct 3 ms 14684 KB Output is correct
8 Correct 3 ms 14824 KB Output is correct
9 Correct 4 ms 14684 KB Output is correct
10 Correct 3 ms 14684 KB Output is correct
11 Correct 3 ms 14684 KB Output is correct
12 Correct 3 ms 14684 KB Output is correct
13 Correct 3 ms 14684 KB Output is correct
14 Correct 3 ms 14680 KB Output is correct
15 Correct 3 ms 14824 KB Output is correct
16 Correct 3 ms 14680 KB Output is correct
17 Correct 3 ms 14684 KB Output is correct
18 Correct 3 ms 14764 KB Output is correct
19 Correct 3 ms 14680 KB Output is correct
20 Correct 3 ms 14684 KB Output is correct
21 Correct 3 ms 14684 KB Output is correct
22 Correct 3 ms 14680 KB Output is correct

Subtask #2
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 14684 KB Output is correct
2 Correct 3 ms 14684 KB Output is correct
3 Correct 4 ms 14680 KB Output is correct
4 Correct 3 ms 14684 KB Output is correct
5 Correct 3 ms 14684 KB Output is correct
6 Correct 3 ms 14784 KB Output is correct
7 Correct 3 ms 14684 KB Output is correct
8 Correct 3 ms 14824 KB Output is correct
9 Correct 4 ms 14684 KB Output is correct
10 Correct 3 ms 14684 KB Output is correct
11 Correct 3 ms 14684 KB Output is correct
12 Correct 3 ms 14684 KB Output is correct
13 Correct 3 ms 14684 KB Output is correct
14 Correct 3 ms 14680 KB Output is correct
15 Correct 3 ms 14824 KB Output is correct
16 Correct 3 ms 14680 KB Output is correct
17 Correct 3 ms 14684 KB Output is correct
18 Correct 3 ms 14764 KB Output is correct
19 Correct 3 ms 14680 KB Output is correct
20 Correct 3 ms 14684 KB Output is correct
21 Correct 3 ms 14684 KB Output is correct
22 Correct 3 ms 14680 KB Output is correct
23 Correct 4 ms 14936 KB Output is correct
24 Correct 4 ms 14936 KB Output is correct
25 Correct 4 ms 14940 KB Output is correct
26 Correct 4 ms 14984 KB Output is correct
27 Correct 5 ms 14940 KB Output is correct
28 Correct 5 ms 14940 KB Output is correct
29 Correct 4 ms 15024 KB Output is correct
30 Correct 6 ms 14940 KB Output is correct
31 Correct 4 ms 14940 KB Output is correct
32 Correct 5 ms 15196 KB Output is correct
33 Correct 6 ms 15064 KB Output is correct
34 Correct 5 ms 15192 KB Output is correct
35 Correct 5 ms 15196 KB Output is correct
36 Correct 5 ms 15196 KB Output is correct
37 Correct 4 ms 15164 KB Output is correct
38 Correct 4 ms 15196 KB Output is correct
39 Correct 4 ms 15192 KB Output is correct
40 Correct 5 ms 15192 KB Output is correct
41 Correct 5 ms 15196 KB Output is correct
42 Correct 4 ms 14940 KB Output is correct
43 Correct 5 ms 15196 KB Output is correct
44 Correct 4 ms 15196 KB Output is correct

Subtask #3
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 14684 KB Output is correct
2 Correct 3 ms 14684 KB Output is correct
3 Correct 4 ms 14680 KB Output is correct
4 Correct 3 ms 14684 KB Output is correct
5 Correct 3 ms 14684 KB Output is correct
6 Correct 3 ms 14784 KB Output is correct
7 Correct 3 ms 14684 KB Output is correct
8 Correct 3 ms 14824 KB Output is correct
9 Correct 4 ms 14684 KB Output is correct
10 Correct 3 ms 14684 KB Output is correct
11 Correct 3 ms 14684 KB Output is correct
12 Correct 3 ms 14684 KB Output is correct
13 Correct 3 ms 14684 KB Output is correct
14 Correct 3 ms 14680 KB Output is correct
15 Correct 3 ms 14824 KB Output is correct
16 Correct 3 ms 14680 KB Output is correct
17 Correct 3 ms 14684 KB Output is correct
18 Correct 3 ms 14764 KB Output is correct
19 Correct 3 ms 14680 KB Output is correct
20 Correct 3 ms 14684 KB Output is correct
21 Correct 3 ms 14684 KB Output is correct
22 Correct 3 ms 14680 KB Output is correct
23 Correct 4 ms 14936 KB Output is correct
24 Correct 4 ms 14936 KB Output is correct
25 Correct 4 ms 14940 KB Output is correct
26 Correct 4 ms 14984 KB Output is correct
27 Correct 5 ms 14940 KB Output is correct
28 Correct 5 ms 14940 KB Output is correct
29 Correct 4 ms 15024 KB Output is correct
30 Correct 6 ms 14940 KB Output is correct
31 Correct 4 ms 14940 KB Output is correct
32 Correct 5 ms 15196 KB Output is correct
33 Correct 6 ms 15064 KB Output is correct
34 Correct 5 ms 15192 KB Output is correct
35 Correct 5 ms 15196 KB Output is correct
36 Correct 5 ms 15196 KB Output is correct
37 Correct 4 ms 15164 KB Output is correct
38 Correct 4 ms 15196 KB Output is correct
39 Correct 4 ms 15192 KB Output is correct
40 Correct 5 ms 15192 KB Output is correct
41 Correct 5 ms 15196 KB Output is correct
42 Correct 4 ms 14940 KB Output is correct
43 Correct 5 ms 15196 KB Output is correct
44 Correct 4 ms 15196 KB Output is correct
45 Correct 292 ms 43988 KB Output is correct
46 Correct 248 ms 43276 KB Output is correct
47 Correct 269 ms 44116 KB Output is correct
48 Correct 288 ms 43332 KB Output is correct
49 Correct 280 ms 43348 KB Output is correct
50 Correct 263 ms 43120 KB Output is correct
51 Correct 270 ms 43712 KB Output is correct
52 Correct 258 ms 44024 KB Output is correct
53 Correct 266 ms 43548 KB Output is correct
54 Correct 379 ms 56396 KB Output is correct
55 Correct 429 ms 56348 KB Output is correct
56 Correct 470 ms 55940 KB Output is correct
57 Correct 409 ms 56084 KB Output is correct
58 Correct 346 ms 55244 KB Output is correct
59 Correct 351 ms 55344 KB Output is correct
60 Correct 173 ms 54516 KB Output is correct
61 Correct 309 ms 45272 KB Output is correct
62 Correct 393 ms 56064 KB Output is correct
63 Correct 304 ms 45908 KB Output is correct
64 Correct 293 ms 44312 KB Output is correct
65 Correct 391 ms 54844 KB Output is correct
66 Correct 298 ms 46928 KB Output is correct