oj.uz

Submission #1003957

# Submission time Handle Problem Language Result Execution time Memory
1003957 2024-06-20T20:52:18 Z AdamGS Construction of Highway (JOI18_construction) C++17
100 / 100
 822 ms 23500 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long double ld;
typedef long long ll;
#define rep(a, b) for(int a = 0; a < (b); ++a)
#define st first
#define nd second
#define pb push_back
#define all(a) a.begin(), a.end()
const int LIM=1e5+7, INF=1e9+7;
vector<int>V[LIM];
pair<int,int>kraw[LIM];
int ile[LIM], oc[LIM], sciezka[LIM], nr[LIM], T[LIM], akt;
ll tr[4*LIM], N;
set<pair<pair<int,int>,int>>S;
void DFS(int x) {
  ile[x]=1;
  for(auto i : V[x]) {
    DFS(i);
    ile[x]+=ile[i];
    oc[i]=x;
  }
  if(!V[x].size()) return;
  rep(i, V[x].size()) if(ile[V[x][i]]>ile[V[x][0]]) swap(V[x][i], V[x][0]);
}
void DFS2(int x) {
  nr[x]=akt++;
  if(!V[x].size()) return;
  sciezka[V[x][0]]=sciezka[x];
  for(auto i : V[x]) DFS2(i);
}
void upd(int v, ll x) {
  v+=N;
  while(v) {
    tr[v]+=x;
    v/=2;
  }
}
ll cnt(int l, int r) {
  if(l>r) return 0;
  l+=N; r+=N;
  ll ans=tr[l];
  if(l!=r) ans+=tr[r];
  while(l/2!=r/2) {
    if(l%2==0) ans+=tr[l+1];
    if(r%2==1) ans+=tr[r-1];
    l/=2; r/=2;
  }
  return ans;
}
ll licz(vector<pair<ll,ll>>A) {
  N=1;
  while(N<A.size()) N*=2;
  rep(i, 2*N) tr[i]=0;
  vector<pair<ll,ll>>B;
  rep(i, A.size()) B.pb({A[i].st, -i});
  sort(all(B));
  ll ans=0;
  for(auto i : B) {
    ans+=cnt(0, -i.nd)*A[-i.nd].nd;
    upd(-i.nd, A[-i.nd].nd);
  }
  return ans;
}
int main() {
  ios_base::sync_with_stdio(0); cin.tie(0);
  int n;
  cin >> n;
  rep(i, n) cin >> T[i];
  rep(i, n-1) {
    cin >> kraw[i].st >> kraw[i].nd;
    --kraw[i].st; --kraw[i].nd;
    V[kraw[i].st].pb(kraw[i].nd);
  }
  DFS(0);
  rep(i, n) sciezka[i]=i;
  DFS2(0);
  rep(i, n) S.insert({{nr[i], nr[i]}, INF});
  rep(i, n-1) {
    int x=kraw[i].nd;
    vector<pair<pair<int,int>,int>>A;
    while(true) {
      auto it=S.lower_bound({{nr[x]+1, -LIM}, -LIM});
      if(it==S.begin()) break;
      --it;
      auto a=*it;
      if(a.st.st<nr[sciezka[x]]) {
        x=oc[sciezka[x]];
        continue;
      }
      S.erase(a);
      if(a.st.nd>nr[x]) {
        S.insert({{nr[x]+1, a.st.nd}, a.nd});
        a.st.nd=nr[x];
      }
      A.pb(a);
    }
    x=kraw[i].nd;
    while(true) {
      S.insert({{nr[sciezka[x]], nr[x]}, T[kraw[i].nd]});
      if(!sciezka[x]) break;
      x=oc[sciezka[x]];
    }
    vector<pair<ll,ll>>B;
    for(auto j : A) B.pb({j.nd, j.st.nd-j.st.st+1});
    cout << licz(B) << '\n';
  }
}

Compilation message

construction.cpp: In function 'void DFS(int)':
construction.cpp:5:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    5 | #define rep(a, b) for(int a = 0; a < (b); ++a)
      |                                    ^
construction.cpp:24:3: note: in expansion of macro 'rep'
   24 |   rep(i, V[x].size()) if(ile[V[x][i]]>ile[V[x][0]]) swap(V[x][i], V[x][0]);
      |   ^~~
construction.cpp: In function 'll licz(std::vector<std::pair<long long int, long long int> >)':
construction.cpp:53:10: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |   while(N<A.size()) N*=2;
      |         ~^~~~~~~~~
construction.cpp:5:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    5 | #define rep(a, b) for(int a = 0; a < (b); ++a)
      |                                    ^
construction.cpp:56:3: note: in expansion of macro 'rep'
   56 |   rep(i, A.size()) B.pb({A[i].st, -i});
      |   ^~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6232 KB Output is correct
2 Correct 1 ms 6232 KB Output is correct
3 Correct 1 ms 6236 KB Output is correct
4 Correct 2 ms 4444 KB Output is correct
5 Correct 2 ms 4444 KB Output is correct
6 Correct 3 ms 6492 KB Output is correct
7 Correct 2 ms 4444 KB Output is correct
8 Correct 1 ms 2752 KB Output is correct
9 Correct 1 ms 2908 KB Output is correct
10 Correct 2 ms 2908 KB Output is correct
11 Correct 2 ms 4444 KB Output is correct
12 Correct 2 ms 2908 KB Output is correct
13 Correct 2 ms 6492 KB Output is correct
14 Correct 2 ms 4444 KB Output is correct
15 Correct 3 ms 2652 KB Output is correct
16 Correct 2 ms 6492 KB Output is correct
17 Correct 2 ms 4444 KB Output is correct
18 Correct 2 ms 4440 KB Output is correct
19 Correct 2 ms 2908 KB Output is correct
20 Correct 2 ms 2744 KB Output is correct
21 Correct 3 ms 4444 KB Output is correct
22 Correct 2 ms 2652 KB Output is correct
23 Correct 2 ms 6492 KB Output is correct
24 Correct 2 ms 4444 KB Output is correct
25 Correct 2 ms 4472 KB Output is correct
26 Correct 2 ms 2908 KB Output is correct
27 Correct 2 ms 2812 KB Output is correct
28 Correct 1 ms 2908 KB Output is correct
29 Correct 2 ms 4444 KB Output is correct
30 Correct 2 ms 6492 KB Output is correct
31 Correct 3 ms 4444 KB Output is correct
32 Correct 2 ms 2908 KB Output is correct
33 Correct 1 ms 2652 KB Output is correct
34 Correct 1 ms 2652 KB Output is correct
35 Correct 1 ms 2652 KB Output is correct
36 Correct 2 ms 4444 KB Output is correct
37 Correct 1 ms 2696 KB Output is correct
38 Correct 2 ms 6492 KB Output is correct
39 Correct 2 ms 6456 KB Output is correct
40 Correct 1 ms 4444 KB Output is correct
41 Correct 2 ms 4444 KB Output is correct
42 Correct 1 ms 2652 KB Output is correct
43 Correct 2 ms 2648 KB Output is correct
44 Correct 2 ms 2648 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6232 KB Output is correct
2 Correct 1 ms 6232 KB Output is correct
3 Correct 1 ms 6236 KB Output is correct
4 Correct 2 ms 4444 KB Output is correct
5 Correct 2 ms 4444 KB Output is correct
6 Correct 3 ms 6492 KB Output is correct
7 Correct 2 ms 4444 KB Output is correct
8 Correct 1 ms 2752 KB Output is correct
9 Correct 1 ms 2908 KB Output is correct
10 Correct 2 ms 2908 KB Output is correct
11 Correct 2 ms 4444 KB Output is correct
12 Correct 2 ms 2908 KB Output is correct
13 Correct 2 ms 6492 KB Output is correct
14 Correct 2 ms 4444 KB Output is correct
15 Correct 3 ms 2652 KB Output is correct
16 Correct 2 ms 6492 KB Output is correct
17 Correct 2 ms 4444 KB Output is correct
18 Correct 2 ms 4440 KB Output is correct
19 Correct 2 ms 2908 KB Output is correct
20 Correct 2 ms 2744 KB Output is correct
21 Correct 3 ms 4444 KB Output is correct
22 Correct 2 ms 2652 KB Output is correct
23 Correct 2 ms 6492 KB Output is correct
24 Correct 2 ms 4444 KB Output is correct
25 Correct 2 ms 4472 KB Output is correct
26 Correct 2 ms 2908 KB Output is correct
27 Correct 2 ms 2812 KB Output is correct
28 Correct 1 ms 2908 KB Output is correct
29 Correct 2 ms 4444 KB Output is correct
30 Correct 2 ms 6492 KB Output is correct
31 Correct 3 ms 4444 KB Output is correct
32 Correct 2 ms 2908 KB Output is correct
33 Correct 1 ms 2652 KB Output is correct
34 Correct 1 ms 2652 KB Output is correct
35 Correct 1 ms 2652 KB Output is correct
36 Correct 2 ms 4444 KB Output is correct
37 Correct 1 ms 2696 KB Output is correct
38 Correct 2 ms 6492 KB Output is correct
39 Correct 2 ms 6456 KB Output is correct
40 Correct 1 ms 4444 KB Output is correct
41 Correct 2 ms 4444 KB Output is correct
42 Correct 1 ms 2652 KB Output is correct
43 Correct 2 ms 2648 KB Output is correct
44 Correct 2 ms 2648 KB Output is correct
45 Correct 3 ms 2904 KB Output is correct
46 Correct 10 ms 3336 KB Output is correct
47 Correct 10 ms 4700 KB Output is correct
48 Correct 10 ms 4700 KB Output is correct
49 Correct 4 ms 7040 KB Output is correct
50 Correct 4 ms 7004 KB Output is correct
51 Correct 5 ms 7000 KB Output is correct
52 Correct 5 ms 4952 KB Output is correct
53 Correct 5 ms 3420 KB Output is correct
54 Correct 4 ms 4956 KB Output is correct
55 Correct 5 ms 4972 KB Output is correct
56 Correct 5 ms 4956 KB Output is correct
57 Correct 15 ms 4836 KB Output is correct
58 Correct 16 ms 6728 KB Output is correct
59 Correct 15 ms 6744 KB Output is correct
60 Correct 17 ms 4696 KB Output is correct
61 Correct 5 ms 4924 KB Output is correct
62 Correct 8 ms 4956 KB Output is correct
63 Correct 6 ms 4740 KB Output is correct
64 Correct 9 ms 4676 KB Output is correct
65 Correct 13 ms 7004 KB Output is correct
66 Correct 8 ms 6748 KB Output is correct
67 Correct 10 ms 4700 KB Output is correct
68 Correct 3 ms 5136 KB Output is correct
69 Correct 4 ms 3432 KB Output is correct
70 Correct 5 ms 3416 KB Output is correct
71 Correct 5 ms 3420 KB Output is correct
72 Correct 14 ms 3320 KB Output is correct
73 Correct 15 ms 3164 KB Output is correct
74 Correct 5 ms 3420 KB Output is correct
75 Correct 4 ms 3164 KB Output is correct
76 Correct 4 ms 3164 KB Output is correct
77 Correct 4 ms 3164 KB Output is correct
78 Correct 4 ms 3164 KB Output is correct
79 Correct 4 ms 3340 KB Output is correct
80 Correct 6 ms 3164 KB Output is correct
81 Correct 5 ms 4908 KB Output is correct
82 Correct 8 ms 3476 KB Output is correct
83 Correct 6 ms 3164 KB Output is correct
84 Correct 5 ms 3164 KB Output is correct
85 Correct 5 ms 3164 KB Output is correct
86 Correct 5 ms 3340 KB Output is correct

Subtask #3
84.0 / 84.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6232 KB Output is correct
2 Correct 1 ms 6232 KB Output is correct
3 Correct 1 ms 6236 KB Output is correct
4 Correct 2 ms 4444 KB Output is correct
5 Correct 2 ms 4444 KB Output is correct
6 Correct 3 ms 6492 KB Output is correct
7 Correct 2 ms 4444 KB Output is correct
8 Correct 1 ms 2752 KB Output is correct
9 Correct 1 ms 2908 KB Output is correct
10 Correct 2 ms 2908 KB Output is correct
11 Correct 2 ms 4444 KB Output is correct
12 Correct 2 ms 2908 KB Output is correct
13 Correct 2 ms 6492 KB Output is correct
14 Correct 2 ms 4444 KB Output is correct
15 Correct 3 ms 2652 KB Output is correct
16 Correct 2 ms 6492 KB Output is correct
17 Correct 2 ms 4444 KB Output is correct
18 Correct 2 ms 4440 KB Output is correct
19 Correct 2 ms 2908 KB Output is correct
20 Correct 2 ms 2744 KB Output is correct
21 Correct 3 ms 4444 KB Output is correct
22 Correct 2 ms 2652 KB Output is correct
23 Correct 2 ms 6492 KB Output is correct
24 Correct 2 ms 4444 KB Output is correct
25 Correct 2 ms 4472 KB Output is correct
26 Correct 2 ms 2908 KB Output is correct
27 Correct 2 ms 2812 KB Output is correct
28 Correct 1 ms 2908 KB Output is correct
29 Correct 2 ms 4444 KB Output is correct
30 Correct 2 ms 6492 KB Output is correct
31 Correct 3 ms 4444 KB Output is correct
32 Correct 2 ms 2908 KB Output is correct
33 Correct 1 ms 2652 KB Output is correct
34 Correct 1 ms 2652 KB Output is correct
35 Correct 1 ms 2652 KB Output is correct
36 Correct 2 ms 4444 KB Output is correct
37 Correct 1 ms 2696 KB Output is correct
38 Correct 2 ms 6492 KB Output is correct
39 Correct 2 ms 6456 KB Output is correct
40 Correct 1 ms 4444 KB Output is correct
41 Correct 2 ms 4444 KB Output is correct
42 Correct 1 ms 2652 KB Output is correct
43 Correct 2 ms 2648 KB Output is correct
44 Correct 2 ms 2648 KB Output is correct
45 Correct 3 ms 2904 KB Output is correct
46 Correct 10 ms 3336 KB Output is correct
47 Correct 10 ms 4700 KB Output is correct
48 Correct 10 ms 4700 KB Output is correct
49 Correct 4 ms 7040 KB Output is correct
50 Correct 4 ms 7004 KB Output is correct
51 Correct 5 ms 7000 KB Output is correct
52 Correct 5 ms 4952 KB Output is correct
53 Correct 5 ms 3420 KB Output is correct
54 Correct 4 ms 4956 KB Output is correct
55 Correct 5 ms 4972 KB Output is correct
56 Correct 5 ms 4956 KB Output is correct
57 Correct 15 ms 4836 KB Output is correct
58 Correct 16 ms 6728 KB Output is correct
59 Correct 15 ms 6744 KB Output is correct
60 Correct 17 ms 4696 KB Output is correct
61 Correct 5 ms 4924 KB Output is correct
62 Correct 8 ms 4956 KB Output is correct
63 Correct 6 ms 4740 KB Output is correct
64 Correct 9 ms 4676 KB Output is correct
65 Correct 13 ms 7004 KB Output is correct
66 Correct 8 ms 6748 KB Output is correct
67 Correct 10 ms 4700 KB Output is correct
68 Correct 3 ms 5136 KB Output is correct
69 Correct 4 ms 3432 KB Output is correct
70 Correct 5 ms 3416 KB Output is correct
71 Correct 5 ms 3420 KB Output is correct
72 Correct 14 ms 3320 KB Output is correct
73 Correct 15 ms 3164 KB Output is correct
74 Correct 5 ms 3420 KB Output is correct
75 Correct 4 ms 3164 KB Output is correct
76 Correct 4 ms 3164 KB Output is correct
77 Correct 4 ms 3164 KB Output is correct
78 Correct 4 ms 3164 KB Output is correct
79 Correct 4 ms 3340 KB Output is correct
80 Correct 6 ms 3164 KB Output is correct
81 Correct 5 ms 4908 KB Output is correct
82 Correct 8 ms 3476 KB Output is correct
83 Correct 6 ms 3164 KB Output is correct
84 Correct 5 ms 3164 KB Output is correct
85 Correct 5 ms 3164 KB Output is correct
86 Correct 5 ms 3340 KB Output is correct
87 Correct 23 ms 3932 KB Output is correct
88 Correct 86 ms 6488 KB Output is correct
89 Correct 391 ms 15644 KB Output is correct
90 Correct 361 ms 15656 KB Output is correct
91 Correct 355 ms 15692 KB Output is correct
92 Correct 77 ms 23376 KB Output is correct
93 Correct 80 ms 23336 KB Output is correct
94 Correct 88 ms 23304 KB Output is correct
95 Correct 117 ms 22988 KB Output is correct
96 Correct 132 ms 23496 KB Output is correct
97 Correct 123 ms 23500 KB Output is correct
98 Correct 130 ms 23436 KB Output is correct
99 Correct 89 ms 18768 KB Output is correct
100 Correct 645 ms 15696 KB Output is correct
101 Correct 737 ms 16264 KB Output is correct
102 Correct 822 ms 16032 KB Output is correct
103 Correct 704 ms 16244 KB Output is correct
104 Correct 137 ms 18880 KB Output is correct
105 Correct 117 ms 18768 KB Output is correct
106 Correct 114 ms 18772 KB Output is correct
107 Correct 359 ms 15056 KB Output is correct
108 Correct 363 ms 14932 KB Output is correct
109 Correct 380 ms 15184 KB Output is correct
110 Correct 79 ms 22868 KB Output is correct
111 Correct 112 ms 23064 KB Output is correct
112 Correct 116 ms 22728 KB Output is correct
113 Correct 107 ms 18256 KB Output is correct
114 Correct 642 ms 15704 KB Output is correct
115 Correct 649 ms 15440 KB Output is correct
116 Correct 118 ms 18160 KB Output is correct
117 Correct 111 ms 16836 KB Output is correct
118 Correct 108 ms 16464 KB Output is correct
119 Correct 108 ms 16072 KB Output is correct
120 Correct 117 ms 16612 KB Output is correct
121 Correct 101 ms 15984 KB Output is correct
122 Correct 148 ms 15700 KB Output is correct
123 Correct 141 ms 17028 KB Output is correct
124 Correct 139 ms 16628 KB Output is correct
125 Correct 144 ms 16104 KB Output is correct
126 Correct 139 ms 16720 KB Output is correct
127 Correct 130 ms 16208 KB Output is correct
128 Correct 142 ms 15948 KB Output is correct