oj.uz

Submission #874537

# Submission time Handle Problem Language Result Execution time Memory
874537 2023-11-17T07:59:34 Z 1075508020060209tc Construction of Highway (JOI18_construction) C++14
100 / 100
 418 ms 41892 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[200005];
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<=200000){
    bit[pl]+=v;
    pl+=lowbit(pl);
}
}
void undo(){
int pl=uvc.back().first;int v=uvc.back().second;
v*=-1;
while(pl<=200000){
    bit[pl]+=v;
    pl+=lowbit(pl);
}
uvc.pop_back();
}
int n;
int ar[200005];
vector<int>e[200005];
int dph[200005];
int hd[200005];
int sbsz[200005];
int fa[200005];
set<pair<pair<int,int>,int>>st[200005];
pair<int,int>qar[200005];
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>>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(long long int, long long int)':
construction.cpp:45:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long 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: 'long long int' and 'std::vector<long long 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(long long int, long long int)':
construction.cpp:61:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long 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:126:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<std::pair<long long int, long long int>, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  126 |             for(int i=0;i<vc.size();i++){
      |                         ~^~~~~~~~~~
construction.cpp:132:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<std::pair<long long int, long long int>, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  132 |         for(int i=0;i<fvc.size();i++){
      |                     ~^~~~~~~~~~~
construction.cpp:139:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<std::pair<long long int, long long int>, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  139 |         for(int i=0;i<fvc.size();i++){
      |                     ~^~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 20828 KB Output is correct
2 Correct 4 ms 20828 KB Output is correct
3 Correct 4 ms 20828 KB Output is correct
4 Correct 5 ms 20928 KB Output is correct
5 Correct 4 ms 21004 KB Output is correct
6 Correct 5 ms 20828 KB Output is correct
7 Correct 4 ms 20828 KB Output is correct
8 Correct 4 ms 20828 KB Output is correct
9 Correct 5 ms 20828 KB Output is correct
10 Correct 4 ms 20828 KB Output is correct
11 Correct 4 ms 21084 KB Output is correct
12 Correct 4 ms 21084 KB Output is correct
13 Correct 4 ms 21080 KB Output is correct
14 Correct 4 ms 20828 KB Output is correct
15 Correct 4 ms 20828 KB Output is correct
16 Correct 4 ms 20828 KB Output is correct
17 Correct 5 ms 20828 KB Output is correct
18 Correct 4 ms 20828 KB Output is correct
19 Correct 4 ms 20828 KB Output is correct
20 Correct 4 ms 20828 KB Output is correct
21 Correct 4 ms 20828 KB Output is correct
22 Correct 4 ms 20828 KB Output is correct
23 Correct 4 ms 20828 KB Output is correct
24 Correct 4 ms 20828 KB Output is correct
25 Correct 4 ms 20828 KB Output is correct
26 Correct 4 ms 20828 KB Output is correct
27 Correct 4 ms 21084 KB Output is correct
28 Correct 4 ms 20968 KB Output is correct
29 Correct 4 ms 20828 KB Output is correct
30 Correct 5 ms 20828 KB Output is correct
31 Correct 5 ms 20828 KB Output is correct
32 Correct 4 ms 20828 KB Output is correct
33 Correct 5 ms 20828 KB Output is correct
34 Correct 5 ms 20828 KB Output is correct
35 Correct 4 ms 20828 KB Output is correct
36 Correct 4 ms 20828 KB Output is correct
37 Correct 4 ms 20828 KB Output is correct
38 Correct 4 ms 20828 KB Output is correct
39 Correct 4 ms 21060 KB Output is correct
40 Correct 5 ms 21084 KB Output is correct
41 Correct 4 ms 20828 KB Output is correct
42 Correct 5 ms 20828 KB Output is correct
43 Correct 5 ms 20828 KB Output is correct
44 Correct 4 ms 20828 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 20828 KB Output is correct
2 Correct 4 ms 20828 KB Output is correct
3 Correct 4 ms 20828 KB Output is correct
4 Correct 5 ms 20928 KB Output is correct
5 Correct 4 ms 21004 KB Output is correct
6 Correct 5 ms 20828 KB Output is correct
7 Correct 4 ms 20828 KB Output is correct
8 Correct 4 ms 20828 KB Output is correct
9 Correct 5 ms 20828 KB Output is correct
10 Correct 4 ms 20828 KB Output is correct
11 Correct 4 ms 21084 KB Output is correct
12 Correct 4 ms 21084 KB Output is correct
13 Correct 4 ms 21080 KB Output is correct
14 Correct 4 ms 20828 KB Output is correct
15 Correct 4 ms 20828 KB Output is correct
16 Correct 4 ms 20828 KB Output is correct
17 Correct 5 ms 20828 KB Output is correct
18 Correct 4 ms 20828 KB Output is correct
19 Correct 4 ms 20828 KB Output is correct
20 Correct 4 ms 20828 KB Output is correct
21 Correct 4 ms 20828 KB Output is correct
22 Correct 4 ms 20828 KB Output is correct
23 Correct 4 ms 20828 KB Output is correct
24 Correct 4 ms 20828 KB Output is correct
25 Correct 4 ms 20828 KB Output is correct
26 Correct 4 ms 20828 KB Output is correct
27 Correct 4 ms 21084 KB Output is correct
28 Correct 4 ms 20968 KB Output is correct
29 Correct 4 ms 20828 KB Output is correct
30 Correct 5 ms 20828 KB Output is correct
31 Correct 5 ms 20828 KB Output is correct
32 Correct 4 ms 20828 KB Output is correct
33 Correct 5 ms 20828 KB Output is correct
34 Correct 5 ms 20828 KB Output is correct
35 Correct 4 ms 20828 KB Output is correct
36 Correct 4 ms 20828 KB Output is correct
37 Correct 4 ms 20828 KB Output is correct
38 Correct 4 ms 20828 KB Output is correct
39 Correct 4 ms 21060 KB Output is correct
40 Correct 5 ms 21084 KB Output is correct
41 Correct 4 ms 20828 KB Output is correct
42 Correct 5 ms 20828 KB Output is correct
43 Correct 5 ms 20828 KB Output is correct
44 Correct 4 ms 20828 KB Output is correct
45 Correct 5 ms 21084 KB Output is correct
46 Correct 10 ms 21340 KB Output is correct
47 Correct 11 ms 21312 KB Output is correct
48 Correct 10 ms 21340 KB Output is correct
49 Correct 8 ms 21340 KB Output is correct
50 Correct 8 ms 21428 KB Output is correct
51 Correct 8 ms 21340 KB Output is correct
52 Correct 9 ms 21596 KB Output is correct
53 Correct 11 ms 21596 KB Output is correct
54 Correct 9 ms 21548 KB Output is correct
55 Correct 8 ms 21596 KB Output is correct
56 Correct 8 ms 21340 KB Output is correct
57 Correct 13 ms 21336 KB Output is correct
58 Correct 13 ms 21296 KB Output is correct
59 Correct 13 ms 21340 KB Output is correct
60 Correct 13 ms 21340 KB Output is correct
61 Correct 8 ms 21336 KB Output is correct
62 Correct 8 ms 21340 KB Output is correct
63 Correct 9 ms 21340 KB Output is correct
64 Correct 11 ms 21352 KB Output is correct
65 Correct 10 ms 21340 KB Output is correct
66 Correct 10 ms 21340 KB Output is correct
67 Correct 10 ms 21352 KB Output is correct
68 Correct 7 ms 21340 KB Output is correct
69 Correct 8 ms 21596 KB Output is correct
70 Correct 8 ms 21592 KB Output is correct
71 Correct 8 ms 21292 KB Output is correct
72 Correct 13 ms 21340 KB Output is correct
73 Correct 12 ms 21340 KB Output is correct
74 Correct 8 ms 21340 KB Output is correct
75 Correct 8 ms 21340 KB Output is correct
76 Correct 9 ms 21232 KB Output is correct
77 Correct 9 ms 21336 KB Output is correct
78 Correct 7 ms 21336 KB Output is correct
79 Correct 11 ms 21340 KB Output is correct
80 Correct 8 ms 21340 KB Output is correct
81 Correct 9 ms 21336 KB Output is correct
82 Correct 9 ms 21336 KB Output is correct
83 Correct 9 ms 21340 KB Output is correct
84 Correct 8 ms 21340 KB Output is correct
85 Correct 9 ms 21176 KB Output is correct
86 Correct 8 ms 21336 KB Output is correct

Subtask #3
84.0 / 84.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 20828 KB Output is correct
2 Correct 4 ms 20828 KB Output is correct
3 Correct 4 ms 20828 KB Output is correct
4 Correct 5 ms 20928 KB Output is correct
5 Correct 4 ms 21004 KB Output is correct
6 Correct 5 ms 20828 KB Output is correct
7 Correct 4 ms 20828 KB Output is correct
8 Correct 4 ms 20828 KB Output is correct
9 Correct 5 ms 20828 KB Output is correct
10 Correct 4 ms 20828 KB Output is correct
11 Correct 4 ms 21084 KB Output is correct
12 Correct 4 ms 21084 KB Output is correct
13 Correct 4 ms 21080 KB Output is correct
14 Correct 4 ms 20828 KB Output is correct
15 Correct 4 ms 20828 KB Output is correct
16 Correct 4 ms 20828 KB Output is correct
17 Correct 5 ms 20828 KB Output is correct
18 Correct 4 ms 20828 KB Output is correct
19 Correct 4 ms 20828 KB Output is correct
20 Correct 4 ms 20828 KB Output is correct
21 Correct 4 ms 20828 KB Output is correct
22 Correct 4 ms 20828 KB Output is correct
23 Correct 4 ms 20828 KB Output is correct
24 Correct 4 ms 20828 KB Output is correct
25 Correct 4 ms 20828 KB Output is correct
26 Correct 4 ms 20828 KB Output is correct
27 Correct 4 ms 21084 KB Output is correct
28 Correct 4 ms 20968 KB Output is correct
29 Correct 4 ms 20828 KB Output is correct
30 Correct 5 ms 20828 KB Output is correct
31 Correct 5 ms 20828 KB Output is correct
32 Correct 4 ms 20828 KB Output is correct
33 Correct 5 ms 20828 KB Output is correct
34 Correct 5 ms 20828 KB Output is correct
35 Correct 4 ms 20828 KB Output is correct
36 Correct 4 ms 20828 KB Output is correct
37 Correct 4 ms 20828 KB Output is correct
38 Correct 4 ms 20828 KB Output is correct
39 Correct 4 ms 21060 KB Output is correct
40 Correct 5 ms 21084 KB Output is correct
41 Correct 4 ms 20828 KB Output is correct
42 Correct 5 ms 20828 KB Output is correct
43 Correct 5 ms 20828 KB Output is correct
44 Correct 4 ms 20828 KB Output is correct
45 Correct 5 ms 21084 KB Output is correct
46 Correct 10 ms 21340 KB Output is correct
47 Correct 11 ms 21312 KB Output is correct
48 Correct 10 ms 21340 KB Output is correct
49 Correct 8 ms 21340 KB Output is correct
50 Correct 8 ms 21428 KB Output is correct
51 Correct 8 ms 21340 KB Output is correct
52 Correct 9 ms 21596 KB Output is correct
53 Correct 11 ms 21596 KB Output is correct
54 Correct 9 ms 21548 KB Output is correct
55 Correct 8 ms 21596 KB Output is correct
56 Correct 8 ms 21340 KB Output is correct
57 Correct 13 ms 21336 KB Output is correct
58 Correct 13 ms 21296 KB Output is correct
59 Correct 13 ms 21340 KB Output is correct
60 Correct 13 ms 21340 KB Output is correct
61 Correct 8 ms 21336 KB Output is correct
62 Correct 8 ms 21340 KB Output is correct
63 Correct 9 ms 21340 KB Output is correct
64 Correct 11 ms 21352 KB Output is correct
65 Correct 10 ms 21340 KB Output is correct
66 Correct 10 ms 21340 KB Output is correct
67 Correct 10 ms 21352 KB Output is correct
68 Correct 7 ms 21340 KB Output is correct
69 Correct 8 ms 21596 KB Output is correct
70 Correct 8 ms 21592 KB Output is correct
71 Correct 8 ms 21292 KB Output is correct
72 Correct 13 ms 21340 KB Output is correct
73 Correct 12 ms 21340 KB Output is correct
74 Correct 8 ms 21340 KB Output is correct
75 Correct 8 ms 21340 KB Output is correct
76 Correct 9 ms 21232 KB Output is correct
77 Correct 9 ms 21336 KB Output is correct
78 Correct 7 ms 21336 KB Output is correct
79 Correct 11 ms 21340 KB Output is correct
80 Correct 8 ms 21340 KB Output is correct
81 Correct 9 ms 21336 KB Output is correct
82 Correct 9 ms 21336 KB Output is correct
83 Correct 9 ms 21340 KB Output is correct
84 Correct 8 ms 21340 KB Output is correct
85 Correct 9 ms 21176 KB Output is correct
86 Correct 8 ms 21336 KB Output is correct
87 Correct 23 ms 22016 KB Output is correct
88 Correct 68 ms 26072 KB Output is correct
89 Correct 243 ms 32912 KB Output is correct
90 Correct 254 ms 32920 KB Output is correct
91 Correct 240 ms 32792 KB Output is correct
92 Correct 122 ms 36264 KB Output is correct
93 Correct 122 ms 36284 KB Output is correct
94 Correct 121 ms 36260 KB Output is correct
95 Correct 137 ms 41376 KB Output is correct
96 Correct 150 ms 41892 KB Output is correct
97 Correct 148 ms 41732 KB Output is correct
98 Correct 148 ms 41880 KB Output is correct
99 Correct 135 ms 34848 KB Output is correct
100 Correct 310 ms 33116 KB Output is correct
101 Correct 418 ms 33208 KB Output is correct
102 Correct 379 ms 33192 KB Output is correct
103 Correct 358 ms 33180 KB Output is correct
104 Correct 161 ms 35032 KB Output is correct
105 Correct 137 ms 34840 KB Output is correct
106 Correct 140 ms 34984 KB Output is correct
107 Correct 215 ms 31276 KB Output is correct
108 Correct 223 ms 31912 KB Output is correct
109 Correct 233 ms 32428 KB Output is correct
110 Correct 106 ms 35620 KB Output is correct
111 Correct 140 ms 41528 KB Output is correct
112 Correct 134 ms 41244 KB Output is correct
113 Correct 116 ms 34216 KB Output is correct
114 Correct 314 ms 33220 KB Output is correct
115 Correct 337 ms 32668 KB Output is correct
116 Correct 122 ms 34356 KB Output is correct
117 Correct 148 ms 32952 KB Output is correct
118 Correct 133 ms 32556 KB Output is correct
119 Correct 134 ms 32156 KB Output is correct
120 Correct 132 ms 32724 KB Output is correct
121 Correct 126 ms 32196 KB Output is correct
122 Correct 144 ms 32004 KB Output is correct
123 Correct 146 ms 33092 KB Output is correct
124 Correct 156 ms 32552 KB Output is correct
125 Correct 148 ms 32164 KB Output is correct
126 Correct 134 ms 32676 KB Output is correct
127 Correct 158 ms 32256 KB Output is correct
128 Correct 146 ms 31904 KB Output is correct