oj.uz

답안 #874538

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
874538 2023-11-17T08:01:02 Z 1075508020060209tc Construction of Highway (JOI18_construction) C++14
100 / 100
 317 ms 39796 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.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(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:128:26: 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]
  128 |             for(int i=0;i<vc.size();i++){
      |                         ~^~~~~~~~~~
construction.cpp:134:22: 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]
  134 |         for(int i=0;i<fvc.size();i++){
      |                     ~^~~~~~~~~~~
construction.cpp:141:22: 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]
  141 |         for(int i=0;i<fvc.size();i++){
      |                     ~^~~~~~~~~~~

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 20824 KB Output is correct
2 Correct 4 ms 20828 KB Output is correct
3 Correct 4 ms 20828 KB Output is correct
4 Correct 4 ms 20828 KB Output is correct
5 Correct 4 ms 20828 KB Output is correct
6 Correct 4 ms 20824 KB Output is correct
7 Correct 4 ms 20944 KB Output is correct
8 Correct 4 ms 21084 KB Output is correct
9 Correct 4 ms 21080 KB Output is correct
10 Correct 4 ms 21084 KB Output is correct
11 Correct 4 ms 20944 KB Output is correct
12 Correct 4 ms 21084 KB Output is correct
13 Correct 4 ms 21084 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 20928 KB Output is correct
17 Correct 4 ms 21084 KB Output is correct
18 Correct 4 ms 20828 KB Output is correct
19 Correct 4 ms 21084 KB Output is correct
20 Correct 4 ms 20828 KB Output is correct
21 Correct 4 ms 21084 KB Output is correct
22 Correct 4 ms 21084 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 21084 KB Output is correct
27 Correct 4 ms 20928 KB Output is correct
28 Correct 4 ms 21084 KB Output is correct
29 Correct 4 ms 21084 KB Output is correct
30 Correct 4 ms 20828 KB Output is correct
31 Correct 4 ms 20828 KB Output is correct
32 Correct 4 ms 21084 KB Output is correct
33 Correct 4 ms 20828 KB Output is correct
34 Correct 4 ms 20828 KB Output is correct
35 Correct 4 ms 20828 KB Output is correct
36 Correct 4 ms 20824 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 20828 KB Output is correct
40 Correct 4 ms 20828 KB Output is correct
41 Correct 4 ms 20824 KB Output is correct
42 Correct 4 ms 20828 KB Output is correct
43 Correct 4 ms 20828 KB Output is correct
44 Correct 4 ms 20940 KB Output is correct

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 20824 KB Output is correct
2 Correct 4 ms 20828 KB Output is correct
3 Correct 4 ms 20828 KB Output is correct
4 Correct 4 ms 20828 KB Output is correct
5 Correct 4 ms 20828 KB Output is correct
6 Correct 4 ms 20824 KB Output is correct
7 Correct 4 ms 20944 KB Output is correct
8 Correct 4 ms 21084 KB Output is correct
9 Correct 4 ms 21080 KB Output is correct
10 Correct 4 ms 21084 KB Output is correct
11 Correct 4 ms 20944 KB Output is correct
12 Correct 4 ms 21084 KB Output is correct
13 Correct 4 ms 21084 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 20928 KB Output is correct
17 Correct 4 ms 21084 KB Output is correct
18 Correct 4 ms 20828 KB Output is correct
19 Correct 4 ms 21084 KB Output is correct
20 Correct 4 ms 20828 KB Output is correct
21 Correct 4 ms 21084 KB Output is correct
22 Correct 4 ms 21084 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 21084 KB Output is correct
27 Correct 4 ms 20928 KB Output is correct
28 Correct 4 ms 21084 KB Output is correct
29 Correct 4 ms 21084 KB Output is correct
30 Correct 4 ms 20828 KB Output is correct
31 Correct 4 ms 20828 KB Output is correct
32 Correct 4 ms 21084 KB Output is correct
33 Correct 4 ms 20828 KB Output is correct
34 Correct 4 ms 20828 KB Output is correct
35 Correct 4 ms 20828 KB Output is correct
36 Correct 4 ms 20824 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 20828 KB Output is correct
40 Correct 4 ms 20828 KB Output is correct
41 Correct 4 ms 20824 KB Output is correct
42 Correct 4 ms 20828 KB Output is correct
43 Correct 4 ms 20828 KB Output is correct
44 Correct 4 ms 20940 KB Output is correct
45 Correct 5 ms 21084 KB Output is correct
46 Correct 11 ms 21392 KB Output is correct
47 Correct 9 ms 21340 KB Output is correct
48 Correct 9 ms 21336 KB Output is correct
49 Correct 6 ms 21340 KB Output is correct
50 Correct 6 ms 21340 KB Output is correct
51 Correct 6 ms 21540 KB Output is correct
52 Correct 6 ms 21596 KB Output is correct
53 Correct 7 ms 21596 KB Output is correct
54 Correct 7 ms 21592 KB Output is correct
55 Correct 7 ms 21596 KB Output is correct
56 Correct 7 ms 21460 KB Output is correct
57 Correct 11 ms 21340 KB Output is correct
58 Correct 12 ms 21272 KB Output is correct
59 Correct 11 ms 21340 KB Output is correct
60 Correct 13 ms 21340 KB Output is correct
61 Correct 7 ms 21340 KB Output is correct
62 Correct 7 ms 21332 KB Output is correct
63 Correct 7 ms 21592 KB Output is correct
64 Correct 9 ms 21268 KB Output is correct
65 Correct 8 ms 21336 KB Output is correct
66 Correct 8 ms 21340 KB Output is correct
67 Correct 8 ms 21236 KB Output is correct
68 Correct 6 ms 21440 KB Output is correct
69 Correct 6 ms 21596 KB Output is correct
70 Correct 6 ms 21596 KB Output is correct
71 Correct 6 ms 21336 KB Output is correct
72 Correct 11 ms 21268 KB Output is correct
73 Correct 11 ms 21340 KB Output is correct
74 Correct 6 ms 21340 KB Output is correct
75 Correct 7 ms 21272 KB Output is correct
76 Correct 7 ms 21340 KB Output is correct
77 Correct 8 ms 21180 KB Output is correct
78 Correct 6 ms 21340 KB Output is correct
79 Correct 9 ms 21336 KB Output is correct
80 Correct 6 ms 21340 KB Output is correct
81 Correct 9 ms 21380 KB Output is correct
82 Correct 7 ms 21336 KB Output is correct
83 Correct 7 ms 21336 KB Output is correct
84 Correct 6 ms 21336 KB Output is correct
85 Correct 7 ms 21340 KB Output is correct
86 Correct 7 ms 21340 KB Output is correct

Subtask #3
84.0 / 84.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 20824 KB Output is correct
2 Correct 4 ms 20828 KB Output is correct
3 Correct 4 ms 20828 KB Output is correct
4 Correct 4 ms 20828 KB Output is correct
5 Correct 4 ms 20828 KB Output is correct
6 Correct 4 ms 20824 KB Output is correct
7 Correct 4 ms 20944 KB Output is correct
8 Correct 4 ms 21084 KB Output is correct
9 Correct 4 ms 21080 KB Output is correct
10 Correct 4 ms 21084 KB Output is correct
11 Correct 4 ms 20944 KB Output is correct
12 Correct 4 ms 21084 KB Output is correct
13 Correct 4 ms 21084 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 20928 KB Output is correct
17 Correct 4 ms 21084 KB Output is correct
18 Correct 4 ms 20828 KB Output is correct
19 Correct 4 ms 21084 KB Output is correct
20 Correct 4 ms 20828 KB Output is correct
21 Correct 4 ms 21084 KB Output is correct
22 Correct 4 ms 21084 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 21084 KB Output is correct
27 Correct 4 ms 20928 KB Output is correct
28 Correct 4 ms 21084 KB Output is correct
29 Correct 4 ms 21084 KB Output is correct
30 Correct 4 ms 20828 KB Output is correct
31 Correct 4 ms 20828 KB Output is correct
32 Correct 4 ms 21084 KB Output is correct
33 Correct 4 ms 20828 KB Output is correct
34 Correct 4 ms 20828 KB Output is correct
35 Correct 4 ms 20828 KB Output is correct
36 Correct 4 ms 20824 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 20828 KB Output is correct
40 Correct 4 ms 20828 KB Output is correct
41 Correct 4 ms 20824 KB Output is correct
42 Correct 4 ms 20828 KB Output is correct
43 Correct 4 ms 20828 KB Output is correct
44 Correct 4 ms 20940 KB Output is correct
45 Correct 5 ms 21084 KB Output is correct
46 Correct 11 ms 21392 KB Output is correct
47 Correct 9 ms 21340 KB Output is correct
48 Correct 9 ms 21336 KB Output is correct
49 Correct 6 ms 21340 KB Output is correct
50 Correct 6 ms 21340 KB Output is correct
51 Correct 6 ms 21540 KB Output is correct
52 Correct 6 ms 21596 KB Output is correct
53 Correct 7 ms 21596 KB Output is correct
54 Correct 7 ms 21592 KB Output is correct
55 Correct 7 ms 21596 KB Output is correct
56 Correct 7 ms 21460 KB Output is correct
57 Correct 11 ms 21340 KB Output is correct
58 Correct 12 ms 21272 KB Output is correct
59 Correct 11 ms 21340 KB Output is correct
60 Correct 13 ms 21340 KB Output is correct
61 Correct 7 ms 21340 KB Output is correct
62 Correct 7 ms 21332 KB Output is correct
63 Correct 7 ms 21592 KB Output is correct
64 Correct 9 ms 21268 KB Output is correct
65 Correct 8 ms 21336 KB Output is correct
66 Correct 8 ms 21340 KB Output is correct
67 Correct 8 ms 21236 KB Output is correct
68 Correct 6 ms 21440 KB Output is correct
69 Correct 6 ms 21596 KB Output is correct
70 Correct 6 ms 21596 KB Output is correct
71 Correct 6 ms 21336 KB Output is correct
72 Correct 11 ms 21268 KB Output is correct
73 Correct 11 ms 21340 KB Output is correct
74 Correct 6 ms 21340 KB Output is correct
75 Correct 7 ms 21272 KB Output is correct
76 Correct 7 ms 21340 KB Output is correct
77 Correct 8 ms 21180 KB Output is correct
78 Correct 6 ms 21340 KB Output is correct
79 Correct 9 ms 21336 KB Output is correct
80 Correct 6 ms 21340 KB Output is correct
81 Correct 9 ms 21380 KB Output is correct
82 Correct 7 ms 21336 KB Output is correct
83 Correct 7 ms 21336 KB Output is correct
84 Correct 6 ms 21336 KB Output is correct
85 Correct 7 ms 21340 KB Output is correct
86 Correct 7 ms 21340 KB Output is correct
87 Correct 18 ms 21772 KB Output is correct
88 Correct 51 ms 25328 KB Output is correct
89 Correct 191 ms 30636 KB Output is correct
90 Correct 197 ms 30644 KB Output is correct
91 Correct 188 ms 30792 KB Output is correct
92 Correct 74 ms 34236 KB Output is correct
93 Correct 75 ms 34240 KB Output is correct
94 Correct 85 ms 34180 KB Output is correct
95 Correct 96 ms 39796 KB Output is correct
96 Correct 114 ms 39772 KB Output is correct
97 Correct 103 ms 39624 KB Output is correct
98 Correct 105 ms 39752 KB Output is correct
99 Correct 85 ms 32944 KB Output is correct
100 Correct 270 ms 31088 KB Output is correct
101 Correct 312 ms 31148 KB Output is correct
102 Correct 309 ms 30996 KB Output is correct
103 Correct 310 ms 31092 KB Output is correct
104 Correct 90 ms 32940 KB Output is correct
105 Correct 92 ms 32684 KB Output is correct
106 Correct 91 ms 32884 KB Output is correct
107 Correct 171 ms 29844 KB Output is correct
108 Correct 192 ms 30840 KB Output is correct
109 Correct 190 ms 30632 KB Output is correct
110 Correct 70 ms 34248 KB Output is correct
111 Correct 98 ms 39604 KB Output is correct
112 Correct 96 ms 39720 KB Output is correct
113 Correct 80 ms 32760 KB Output is correct
114 Correct 257 ms 31148 KB Output is correct
115 Correct 317 ms 31268 KB Output is correct
116 Correct 88 ms 32888 KB Output is correct
117 Correct 89 ms 31152 KB Output is correct
118 Correct 90 ms 30700 KB Output is correct
119 Correct 100 ms 30720 KB Output is correct
120 Correct 85 ms 31176 KB Output is correct
121 Correct 90 ms 30744 KB Output is correct
122 Correct 89 ms 30468 KB Output is correct
123 Correct 98 ms 31152 KB Output is correct
124 Correct 99 ms 30636 KB Output is correct
125 Correct 101 ms 30372 KB Output is correct
126 Correct 93 ms 31156 KB Output is correct
127 Correct 98 ms 30644 KB Output is correct
128 Correct 106 ms 30504 KB Output is correct