oj.uz

Submission #874540

# Submission time Handle Problem Language Result Execution time Memory
874540 2023-11-17T08:02:30 Z 1075508020060209tc Construction of Highway (JOI18_construction) C++14
100 / 100
 292 ms 23664 KB 
//#pragma GCC optimize("Ofast,no-stack-protector")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
#include <bits/stdc++.h>
using namespace std;
//#define int long long
int bit[100005];
int lowbit(int x){return x&-x;}
int qsum(int pl){
int ret=0;
while(pl){
    ret+=bit[pl];
    pl-=lowbit(pl);
}
return ret;
}
vector<pair<int,int>>uvc;
void updbit(int pl,int v){
uvc.push_back({pl,v});
while(pl<=100000){
    bit[pl]+=v;
    pl+=lowbit(pl);
}
}
void undo(){
int pl=uvc.back().first;int v=uvc.back().second;
v*=-1;
while(pl<=100000){
    bit[pl]+=v;
    pl+=lowbit(pl);
}
uvc.pop_back();
}
int n;
int ar[100005];
vector<int>e[100005];
int dph[100005];
int hd[100005];
int sbsz[100005];
int fa[100005];
set<pair<pair<int,int>,int>>st[100005];
pair<int,int>qar[100005];
void dfssbsz(int nw,int pa){
dph[nw]=dph[pa]+1;
sbsz[nw]=1;
for(int i=0;i<e[nw].size();i++){
    int v=e[nw][i];
    dfssbsz(v,nw);
    sbsz[nw]+=sbsz[v];
}
for(int i=1;i<e[nw].size();i++){
    if(sbsz[e[nw][i]]>sbsz[e[nw][0]]){
        swap(e[nw][i],e[nw][0]);
    }
}
}
void dfshd(int nw,int head){
hd[nw]=head;
if(e[nw].size()){
    dfshd(e[nw][0],head);
}
for(int i=1;i<e[nw].size();i++){
    dfshd(e[nw][i],e[nw][i]);
}
}


void lisanhua(){
vector<int>vc;
for(int i=1;i<=n;i++){
    vc.push_back(ar[i]);
}
sort(vc.begin(),vc.end());
for(int i=1;i<=n;i++){
    ar[i]=1+lower_bound(vc.begin(),vc.end(),ar[i])-vc.begin();
}

}


signed main()
{
    cin.tie(0);
    ios_base::sync_with_stdio(0);
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>ar[i];
    }
    lisanhua();
    for(int i=1;i<=n-1;i++){
        cin>>qar[i].first>>qar[i].second;
        fa[qar[i].second]=qar[i].first;
        e[qar[i].first].push_back(qar[i].second);
    }
    dfssbsz(1,0);
    dfshd(1,1);

    /*for(int i=1;i<=n;i++){
        cout<<hd[i]<<" ";
    }cout<<endl;*/

    st[1].insert({{1,1},ar[1]});
    for(int qqq=1;qqq<=n-1;qqq++){
        int nw=qar[qqq].first;
        vector<pair<pair<int,int>,int>>fvc;
        while(nw!=0){
        vector<pair<pair<int,int>,int>>vc;
        int hdd=hd[nw];
            while(st[hdd].size()){
                auto it=st[hdd].begin();
                pair<pair<int,int>,int>pr=*it;
                if(pr.first.second<=dph[nw]){
                    vc.push_back(pr);
                    st[hdd].erase(it);
                    continue;
                }
                if(pr.first.first<=dph[nw]){
                    int ogr=pr.first.second;
                    pr.first.second=dph[nw];
                    vc.push_back(pr);
                    st[hdd].erase(it);
                    pr={ {dph[nw]+1,ogr} ,pr.second };
                    st[hdd].insert(pr);
                    break;
                }
                break;
            }
            reverse(vc.begin(),vc.end());
            for(int i=0;i<vc.size();i++){
                fvc.push_back(vc[i]);
            }
            nw=fa[hd[nw]];
        }
        int ans=0;
        for(int i=0;i<fvc.size();i++){
            int len=fvc[i].first.second-fvc[i].first.first+1;
            ans+=len*qsum(fvc[i].second-1);
          //  cout<<fvc[i].first.first<<" "<<fvc[i].first.second<<" "<<fvc[i].second<<"\n";
            updbit(fvc[i].second,len);
        }

        for(int i=0;i<fvc.size();i++){
            undo();
        }/*
        for(int i=0;i<=200000;i++){
            bit[i]=0;
        }*/
        cout<<ans<<"\n";
        nw=qar[qqq].second;
        int clr=ar[nw];
        while(nw!=0){
            int r=dph[nw];
            int l=dph[hd[nw]];
            st[hd[nw]].insert({{l,r},clr});
            nw=fa[hd[nw]];
        }


    }



}

Compilation message

construction.cpp: In function 'void dfssbsz(int, int)':
construction.cpp:45:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 | for(int i=0;i<e[nw].size();i++){
      |             ~^~~~~~~~~~~~~
construction.cpp:50:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 | for(int i=1;i<e[nw].size();i++){
      |             ~^~~~~~~~~~~~~
construction.cpp: In function 'void dfshd(int, int)':
construction.cpp:61:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   61 | for(int i=1;i<e[nw].size();i++){
      |             ~^~~~~~~~~~~~~
construction.cpp: In function 'int main()':
construction.cpp:128:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<std::pair<int, int>, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  128 |             for(int i=0;i<vc.size();i++){
      |                         ~^~~~~~~~~~
construction.cpp:134:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<std::pair<int, int>, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  134 |         for(int i=0;i<fvc.size();i++){
      |                     ~^~~~~~~~~~~
construction.cpp:141:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<std::pair<int, int>, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  141 |         for(int i=0;i<fvc.size();i++){
      |                     ~^~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9564 KB Output is correct
2 Correct 2 ms 9564 KB Output is correct
3 Correct 2 ms 9564 KB Output is correct
4 Correct 2 ms 9648 KB Output is correct
5 Correct 2 ms 9564 KB Output is correct
6 Correct 3 ms 9756 KB Output is correct
7 Correct 3 ms 9564 KB Output is correct
8 Correct 2 ms 9564 KB Output is correct
9 Correct 2 ms 9564 KB Output is correct
10 Correct 2 ms 9564 KB Output is correct
11 Correct 2 ms 9564 KB Output is correct
12 Correct 3 ms 9560 KB Output is correct
13 Correct 2 ms 9564 KB Output is correct
14 Correct 2 ms 9564 KB Output is correct
15 Correct 3 ms 9564 KB Output is correct
16 Correct 3 ms 9564 KB Output is correct
17 Correct 2 ms 9564 KB Output is correct
18 Correct 3 ms 9564 KB Output is correct
19 Correct 2 ms 9564 KB Output is correct
20 Correct 2 ms 9560 KB Output is correct
21 Correct 2 ms 9564 KB Output is correct
22 Correct 2 ms 9636 KB Output is correct
23 Correct 3 ms 9564 KB Output is correct
24 Correct 3 ms 9660 KB Output is correct
25 Correct 3 ms 9564 KB Output is correct
26 Correct 2 ms 9652 KB Output is correct
27 Correct 3 ms 9564 KB Output is correct
28 Correct 2 ms 9564 KB Output is correct
29 Correct 2 ms 9564 KB Output is correct
30 Correct 2 ms 9564 KB Output is correct
31 Correct 2 ms 9564 KB Output is correct
32 Correct 3 ms 9564 KB Output is correct
33 Correct 2 ms 9564 KB Output is correct
34 Correct 3 ms 9564 KB Output is correct
35 Correct 2 ms 9564 KB Output is correct
36 Correct 3 ms 9564 KB Output is correct
37 Correct 2 ms 9564 KB Output is correct
38 Correct 2 ms 9564 KB Output is correct
39 Correct 2 ms 9564 KB Output is correct
40 Correct 3 ms 9564 KB Output is correct
41 Correct 3 ms 9564 KB Output is correct
42 Correct 3 ms 9564 KB Output is correct
43 Correct 3 ms 9564 KB Output is correct
44 Correct 2 ms 9564 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9564 KB Output is correct
2 Correct 2 ms 9564 KB Output is correct
3 Correct 2 ms 9564 KB Output is correct
4 Correct 2 ms 9648 KB Output is correct
5 Correct 2 ms 9564 KB Output is correct
6 Correct 3 ms 9756 KB Output is correct
7 Correct 3 ms 9564 KB Output is correct
8 Correct 2 ms 9564 KB Output is correct
9 Correct 2 ms 9564 KB Output is correct
10 Correct 2 ms 9564 KB Output is correct
11 Correct 2 ms 9564 KB Output is correct
12 Correct 3 ms 9560 KB Output is correct
13 Correct 2 ms 9564 KB Output is correct
14 Correct 2 ms 9564 KB Output is correct
15 Correct 3 ms 9564 KB Output is correct
16 Correct 3 ms 9564 KB Output is correct
17 Correct 2 ms 9564 KB Output is correct
18 Correct 3 ms 9564 KB Output is correct
19 Correct 2 ms 9564 KB Output is correct
20 Correct 2 ms 9560 KB Output is correct
21 Correct 2 ms 9564 KB Output is correct
22 Correct 2 ms 9636 KB Output is correct
23 Correct 3 ms 9564 KB Output is correct
24 Correct 3 ms 9660 KB Output is correct
25 Correct 3 ms 9564 KB Output is correct
26 Correct 2 ms 9652 KB Output is correct
27 Correct 3 ms 9564 KB Output is correct
28 Correct 2 ms 9564 KB Output is correct
29 Correct 2 ms 9564 KB Output is correct
30 Correct 2 ms 9564 KB Output is correct
31 Correct 2 ms 9564 KB Output is correct
32 Correct 3 ms 9564 KB Output is correct
33 Correct 2 ms 9564 KB Output is correct
34 Correct 3 ms 9564 KB Output is correct
35 Correct 2 ms 9564 KB Output is correct
36 Correct 3 ms 9564 KB Output is correct
37 Correct 2 ms 9564 KB Output is correct
38 Correct 2 ms 9564 KB Output is correct
39 Correct 2 ms 9564 KB Output is correct
40 Correct 3 ms 9564 KB Output is correct
41 Correct 3 ms 9564 KB Output is correct
42 Correct 3 ms 9564 KB Output is correct
43 Correct 3 ms 9564 KB Output is correct
44 Correct 2 ms 9564 KB Output is correct
45 Correct 3 ms 9564 KB Output is correct
46 Correct 9 ms 9820 KB Output is correct
47 Correct 7 ms 9964 KB Output is correct
48 Correct 8 ms 9820 KB Output is correct
49 Correct 6 ms 10072 KB Output is correct
50 Correct 5 ms 10076 KB Output is correct
51 Correct 5 ms 10076 KB Output is correct
52 Correct 5 ms 10156 KB Output is correct
53 Correct 5 ms 10076 KB Output is correct
54 Correct 5 ms 10072 KB Output is correct
55 Correct 5 ms 10076 KB Output is correct
56 Correct 4 ms 10076 KB Output is correct
57 Correct 9 ms 10076 KB Output is correct
58 Correct 9 ms 9820 KB Output is correct
59 Correct 10 ms 9968 KB Output is correct
60 Correct 10 ms 10076 KB Output is correct
61 Correct 4 ms 10072 KB Output is correct
62 Correct 5 ms 10076 KB Output is correct
63 Correct 5 ms 10076 KB Output is correct
64 Correct 6 ms 9820 KB Output is correct
65 Correct 7 ms 9820 KB Output is correct
66 Correct 6 ms 9820 KB Output is correct
67 Correct 7 ms 9820 KB Output is correct
68 Correct 4 ms 10072 KB Output is correct
69 Correct 5 ms 10076 KB Output is correct
70 Correct 4 ms 10076 KB Output is correct
71 Correct 5 ms 10076 KB Output is correct
72 Correct 8 ms 9820 KB Output is correct
73 Correct 9 ms 9816 KB Output is correct
74 Correct 5 ms 10076 KB Output is correct
75 Correct 5 ms 9964 KB Output is correct
76 Correct 5 ms 9820 KB Output is correct
77 Correct 5 ms 9820 KB Output is correct
78 Correct 4 ms 9816 KB Output is correct
79 Correct 4 ms 9820 KB Output is correct
80 Correct 4 ms 9820 KB Output is correct
81 Correct 5 ms 9820 KB Output is correct
82 Correct 5 ms 9996 KB Output is correct
83 Correct 5 ms 9816 KB Output is correct
84 Correct 5 ms 9820 KB Output is correct
85 Correct 5 ms 9820 KB Output is correct
86 Correct 5 ms 9972 KB Output is correct

Subtask #3
84.0 / 84.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9564 KB Output is correct
2 Correct 2 ms 9564 KB Output is correct
3 Correct 2 ms 9564 KB Output is correct
4 Correct 2 ms 9648 KB Output is correct
5 Correct 2 ms 9564 KB Output is correct
6 Correct 3 ms 9756 KB Output is correct
7 Correct 3 ms 9564 KB Output is correct
8 Correct 2 ms 9564 KB Output is correct
9 Correct 2 ms 9564 KB Output is correct
10 Correct 2 ms 9564 KB Output is correct
11 Correct 2 ms 9564 KB Output is correct
12 Correct 3 ms 9560 KB Output is correct
13 Correct 2 ms 9564 KB Output is correct
14 Correct 2 ms 9564 KB Output is correct
15 Correct 3 ms 9564 KB Output is correct
16 Correct 3 ms 9564 KB Output is correct
17 Correct 2 ms 9564 KB Output is correct
18 Correct 3 ms 9564 KB Output is correct
19 Correct 2 ms 9564 KB Output is correct
20 Correct 2 ms 9560 KB Output is correct
21 Correct 2 ms 9564 KB Output is correct
22 Correct 2 ms 9636 KB Output is correct
23 Correct 3 ms 9564 KB Output is correct
24 Correct 3 ms 9660 KB Output is correct
25 Correct 3 ms 9564 KB Output is correct
26 Correct 2 ms 9652 KB Output is correct
27 Correct 3 ms 9564 KB Output is correct
28 Correct 2 ms 9564 KB Output is correct
29 Correct 2 ms 9564 KB Output is correct
30 Correct 2 ms 9564 KB Output is correct
31 Correct 2 ms 9564 KB Output is correct
32 Correct 3 ms 9564 KB Output is correct
33 Correct 2 ms 9564 KB Output is correct
34 Correct 3 ms 9564 KB Output is correct
35 Correct 2 ms 9564 KB Output is correct
36 Correct 3 ms 9564 KB Output is correct
37 Correct 2 ms 9564 KB Output is correct
38 Correct 2 ms 9564 KB Output is correct
39 Correct 2 ms 9564 KB Output is correct
40 Correct 3 ms 9564 KB Output is correct
41 Correct 3 ms 9564 KB Output is correct
42 Correct 3 ms 9564 KB Output is correct
43 Correct 3 ms 9564 KB Output is correct
44 Correct 2 ms 9564 KB Output is correct
45 Correct 3 ms 9564 KB Output is correct
46 Correct 9 ms 9820 KB Output is correct
47 Correct 7 ms 9964 KB Output is correct
48 Correct 8 ms 9820 KB Output is correct
49 Correct 6 ms 10072 KB Output is correct
50 Correct 5 ms 10076 KB Output is correct
51 Correct 5 ms 10076 KB Output is correct
52 Correct 5 ms 10156 KB Output is correct
53 Correct 5 ms 10076 KB Output is correct
54 Correct 5 ms 10072 KB Output is correct
55 Correct 5 ms 10076 KB Output is correct
56 Correct 4 ms 10076 KB Output is correct
57 Correct 9 ms 10076 KB Output is correct
58 Correct 9 ms 9820 KB Output is correct
59 Correct 10 ms 9968 KB Output is correct
60 Correct 10 ms 10076 KB Output is correct
61 Correct 4 ms 10072 KB Output is correct
62 Correct 5 ms 10076 KB Output is correct
63 Correct 5 ms 10076 KB Output is correct
64 Correct 6 ms 9820 KB Output is correct
65 Correct 7 ms 9820 KB Output is correct
66 Correct 6 ms 9820 KB Output is correct
67 Correct 7 ms 9820 KB Output is correct
68 Correct 4 ms 10072 KB Output is correct
69 Correct 5 ms 10076 KB Output is correct
70 Correct 4 ms 10076 KB Output is correct
71 Correct 5 ms 10076 KB Output is correct
72 Correct 8 ms 9820 KB Output is correct
73 Correct 9 ms 9816 KB Output is correct
74 Correct 5 ms 10076 KB Output is correct
75 Correct 5 ms 9964 KB Output is correct
76 Correct 5 ms 9820 KB Output is correct
77 Correct 5 ms 9820 KB Output is correct
78 Correct 4 ms 9816 KB Output is correct
79 Correct 4 ms 9820 KB Output is correct
80 Correct 4 ms 9820 KB Output is correct
81 Correct 5 ms 9820 KB Output is correct
82 Correct 5 ms 9996 KB Output is correct
83 Correct 5 ms 9816 KB Output is correct
84 Correct 5 ms 9820 KB Output is correct
85 Correct 5 ms 9820 KB Output is correct
86 Correct 5 ms 9972 KB Output is correct
87 Correct 16 ms 10324 KB Output is correct
88 Correct 48 ms 11744 KB Output is correct
89 Correct 193 ms 16428 KB Output is correct
90 Correct 167 ms 16448 KB Output is correct
91 Correct 217 ms 16444 KB Output is correct
92 Correct 70 ms 20032 KB Output is correct
93 Correct 69 ms 20048 KB Output is correct
94 Correct 68 ms 20188 KB Output is correct
95 Correct 94 ms 23664 KB Output is correct
96 Correct 103 ms 23612 KB Output is correct
97 Correct 99 ms 23584 KB Output is correct
98 Correct 95 ms 23580 KB Output is correct
99 Correct 77 ms 18748 KB Output is correct
100 Correct 225 ms 17112 KB Output is correct
101 Correct 275 ms 17068 KB Output is correct
102 Correct 275 ms 16960 KB Output is correct
103 Correct 254 ms 16900 KB Output is correct
104 Correct 96 ms 18624 KB Output is correct
105 Correct 101 ms 18572 KB Output is correct
106 Correct 99 ms 18644 KB Output is correct
107 Correct 148 ms 16008 KB Output is correct
108 Correct 181 ms 16264 KB Output is correct
109 Correct 169 ms 16444 KB Output is correct
110 Correct 68 ms 20044 KB Output is correct
111 Correct 90 ms 23540 KB Output is correct
112 Correct 93 ms 23512 KB Output is correct
113 Correct 79 ms 18752 KB Output is correct
114 Correct 258 ms 17112 KB Output is correct
115 Correct 292 ms 16960 KB Output is correct
116 Correct 77 ms 18640 KB Output is correct
117 Correct 81 ms 16956 KB Output is correct
118 Correct 93 ms 16600 KB Output is correct
119 Correct 87 ms 16236 KB Output is correct
120 Correct 78 ms 16920 KB Output is correct
121 Correct 79 ms 16436 KB Output is correct
122 Correct 83 ms 16188 KB Output is correct
123 Correct 100 ms 17216 KB Output is correct
124 Correct 96 ms 16668 KB Output is correct
125 Correct 93 ms 16340 KB Output is correct
126 Correct 88 ms 17144 KB Output is correct
127 Correct 88 ms 16700 KB Output is correct
128 Correct 90 ms 16364 KB Output is correct