oj.uz

Submission #1000584

# Submission time Handle Problem Language Result Execution time Memory
1000584 2024-06-17T21:07:35 Z AdamGS Port Facility (JOI17_port_facility) C++17
100 / 100
 3217 ms 819656 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 ll MOD=1e9+7;
const int LIM=1e6+7;
vector<pair<int,int>>V[LIM];
ll ans=1;
pair<int,int>T[LIM];
int kol[LIM], tr[8*LIM], kto[8*LIM], trmi[8*LIM], N=1;
void DFS(int x, int o) {
  for(auto i : V[x]) {
    if(!kol[i.st]) {
      kol[i.st]=kol[x]^i.nd;
      DFS(i.st, x);
    } else if((kol[i.st]^i.nd)!=kol[x]) ans=0;
  }
}
void dodaj(int a, int b) {
  if(b==-1) return;
  if(T[b].st<T[a].st) {
    V[a].pb({b, 3});
    V[b].pb({a, 3});
  }
}
void upd(int l, int r, int x, int a) {
  if(l>r) return;
  l+=N; r+=N;
  tr[l]=max(tr[l], x);
  dodaj(a, trmi[l]);
  tr[r]=max(tr[r], x);
  dodaj(a, trmi[r]);
  while(l/2!=r/2) {
    if(l%2==0) {
      tr[l+1]=max(tr[l+1], x);
      dodaj(a, trmi[l+1]);
    }
    if(r%2==1) {
      tr[r-1]=max(tr[r-1], x);
      dodaj(a, trmi[r-1]);
    }
    l/=2; r/=2;
  }
}
vector<pair<int,int>>zejdz(int v, int a, int b) {
  trmi[v]=-1;
  if(a==b) {
    if(kto[a]==-1) return {};
    trmi[v]=kto[a];
    return {{T[kto[a]].st, kto[a]}};
  }
  int mid=(a+b)/2;
  vector<pair<int,int>>A=zejdz(2*v, a, mid), B=zejdz(2*v+1, mid+1, b);
  vector<pair<int,int>>C;
  int l=0;
  for(auto i : A) {
    while(l<B.size() && B[l]<=i) C.pb(B[l++]);
    C.pb(i);
  }
  while(l<B.size()) C.pb(B[l++]);
  l=0;
  while(l+1<C.size() && C[l+1].st<=tr[v]) {
    V[C[l].nd].pb({C[l+1].nd, 0});
    V[C[l+1].nd].pb({C[l].nd, 0});
    ++l;
  }
  if(C.size()) trmi[v]=C[0].nd; else trmi[v]=-1;
  return C;
}
int main() {
  ios_base::sync_with_stdio(0); cin.tie(0);
  int n;
  cin >> n;
  while(N<2*n) N*=2;
  rep(i, 2*N) tr[i]=-MOD;
  rep(i, N) kto[i]=-1;
  rep(i, n) {
    cin >> T[i].st >> T[i].nd;
    --T[i].st; --T[i].nd;
  }
  sort(T, T+n);
  rep(i, n) kto[T[i].nd]=i;
  zejdz(1, 0, N-1);
  rep(i, n) upd(T[i].st+1, T[i].nd-1, T[i].st-1, i);
  zejdz(1, 0, N-1);
  rep(i, n) if(!kol[i]) {
    kol[i]=1;
    DFS(i, i);
    ans=(ans*2)%MOD;
  }
  cout << ans << '\n';
}

Compilation message

port_facility.cpp: In function 'std::vector<std::pair<int, int> > zejdz(int, int, int)':
port_facility.cpp:62:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   62 |     while(l<B.size() && B[l]<=i) C.pb(B[l++]);
      |           ~^~~~~~~~~
port_facility.cpp:65:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   65 |   while(l<B.size()) C.pb(B[l++]);
      |         ~^~~~~~~~~
port_facility.cpp:67:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   67 |   while(l+1<C.size() && C[l+1].st<=tr[v]) {
      |         ~~~^~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 30812 KB Output is correct
2 Correct 6 ms 30812 KB Output is correct
3 Correct 5 ms 30808 KB Output is correct
4 Correct 4 ms 30812 KB Output is correct
5 Correct 5 ms 30812 KB Output is correct
6 Correct 5 ms 30812 KB Output is correct
7 Correct 5 ms 30812 KB Output is correct
8 Correct 5 ms 30812 KB Output is correct
9 Correct 5 ms 30808 KB Output is correct
10 Correct 4 ms 30812 KB Output is correct
11 Correct 5 ms 30812 KB Output is correct
12 Correct 5 ms 30808 KB Output is correct
13 Correct 5 ms 30944 KB Output is correct
14 Correct 5 ms 30812 KB Output is correct
15 Correct 5 ms 30812 KB Output is correct
16 Correct 5 ms 30812 KB Output is correct
17 Correct 5 ms 30812 KB Output is correct
18 Correct 6 ms 30812 KB Output is correct
19 Correct 5 ms 30932 KB Output is correct
20 Correct 5 ms 30808 KB Output is correct
21 Correct 4 ms 30812 KB Output is correct
22 Correct 5 ms 30812 KB Output is correct
23 Correct 5 ms 30812 KB Output is correct
24 Correct 5 ms 30808 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 30812 KB Output is correct
2 Correct 6 ms 30812 KB Output is correct
3 Correct 5 ms 30808 KB Output is correct
4 Correct 4 ms 30812 KB Output is correct
5 Correct 5 ms 30812 KB Output is correct
6 Correct 5 ms 30812 KB Output is correct
7 Correct 5 ms 30812 KB Output is correct
8 Correct 5 ms 30812 KB Output is correct
9 Correct 5 ms 30808 KB Output is correct
10 Correct 4 ms 30812 KB Output is correct
11 Correct 5 ms 30812 KB Output is correct
12 Correct 5 ms 30808 KB Output is correct
13 Correct 5 ms 30944 KB Output is correct
14 Correct 5 ms 30812 KB Output is correct
15 Correct 5 ms 30812 KB Output is correct
16 Correct 5 ms 30812 KB Output is correct
17 Correct 5 ms 30812 KB Output is correct
18 Correct 6 ms 30812 KB Output is correct
19 Correct 5 ms 30932 KB Output is correct
20 Correct 5 ms 30808 KB Output is correct
21 Correct 4 ms 30812 KB Output is correct
22 Correct 5 ms 30812 KB Output is correct
23 Correct 5 ms 30812 KB Output is correct
24 Correct 5 ms 30808 KB Output is correct
25 Correct 6 ms 31068 KB Output is correct
26 Correct 6 ms 31216 KB Output is correct
27 Correct 7 ms 31092 KB Output is correct
28 Correct 6 ms 31200 KB Output is correct
29 Correct 7 ms 31064 KB Output is correct
30 Correct 6 ms 31208 KB Output is correct
31 Correct 6 ms 30968 KB Output is correct
32 Correct 6 ms 31068 KB Output is correct
33 Correct 6 ms 31068 KB Output is correct
34 Correct 7 ms 31068 KB Output is correct
35 Correct 6 ms 30812 KB Output is correct
36 Correct 6 ms 31068 KB Output is correct
37 Correct 7 ms 31580 KB Output is correct
38 Correct 6 ms 31580 KB Output is correct
39 Correct 6 ms 31068 KB Output is correct
40 Correct 6 ms 31056 KB Output is correct
41 Correct 6 ms 31068 KB Output is correct
42 Correct 6 ms 31068 KB Output is correct
43 Correct 6 ms 31068 KB Output is correct
44 Correct 6 ms 31224 KB Output is correct

Subtask #3
56.0 / 56.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 30812 KB Output is correct
2 Correct 6 ms 30812 KB Output is correct
3 Correct 5 ms 30808 KB Output is correct
4 Correct 4 ms 30812 KB Output is correct
5 Correct 5 ms 30812 KB Output is correct
6 Correct 5 ms 30812 KB Output is correct
7 Correct 5 ms 30812 KB Output is correct
8 Correct 5 ms 30812 KB Output is correct
9 Correct 5 ms 30808 KB Output is correct
10 Correct 4 ms 30812 KB Output is correct
11 Correct 5 ms 30812 KB Output is correct
12 Correct 5 ms 30808 KB Output is correct
13 Correct 5 ms 30944 KB Output is correct
14 Correct 5 ms 30812 KB Output is correct
15 Correct 5 ms 30812 KB Output is correct
16 Correct 5 ms 30812 KB Output is correct
17 Correct 5 ms 30812 KB Output is correct
18 Correct 6 ms 30812 KB Output is correct
19 Correct 5 ms 30932 KB Output is correct
20 Correct 5 ms 30808 KB Output is correct
21 Correct 4 ms 30812 KB Output is correct
22 Correct 5 ms 30812 KB Output is correct
23 Correct 5 ms 30812 KB Output is correct
24 Correct 5 ms 30808 KB Output is correct
25 Correct 6 ms 31068 KB Output is correct
26 Correct 6 ms 31216 KB Output is correct
27 Correct 7 ms 31092 KB Output is correct
28 Correct 6 ms 31200 KB Output is correct
29 Correct 7 ms 31064 KB Output is correct
30 Correct 6 ms 31208 KB Output is correct
31 Correct 6 ms 30968 KB Output is correct
32 Correct 6 ms 31068 KB Output is correct
33 Correct 6 ms 31068 KB Output is correct
34 Correct 7 ms 31068 KB Output is correct
35 Correct 6 ms 30812 KB Output is correct
36 Correct 6 ms 31068 KB Output is correct
37 Correct 7 ms 31580 KB Output is correct
38 Correct 6 ms 31580 KB Output is correct
39 Correct 6 ms 31068 KB Output is correct
40 Correct 6 ms 31056 KB Output is correct
41 Correct 6 ms 31068 KB Output is correct
42 Correct 6 ms 31068 KB Output is correct
43 Correct 6 ms 31068 KB Output is correct
44 Correct 6 ms 31224 KB Output is correct
45 Correct 81 ms 45948 KB Output is correct
46 Correct 83 ms 46976 KB Output is correct
47 Correct 80 ms 45428 KB Output is correct
48 Correct 83 ms 46804 KB Output is correct
49 Correct 75 ms 45820 KB Output is correct
50 Correct 89 ms 46840 KB Output is correct
51 Correct 83 ms 46948 KB Output is correct
52 Correct 49 ms 39072 KB Output is correct
53 Correct 55 ms 39300 KB Output is correct
54 Correct 130 ms 82092 KB Output is correct
55 Correct 130 ms 77728 KB Output is correct
56 Correct 124 ms 77720 KB Output is correct
57 Correct 56 ms 42148 KB Output is correct
58 Correct 52 ms 39072 KB Output is correct
59 Correct 59 ms 40032 KB Output is correct
60 Correct 66 ms 41512 KB Output is correct
61 Correct 72 ms 43052 KB Output is correct
62 Correct 66 ms 43064 KB Output is correct
63 Correct 72 ms 42300 KB Output is correct
64 Correct 76 ms 43364 KB Output is correct
65 Correct 225 ms 103212 KB Output is correct
66 Correct 221 ms 103480 KB Output is correct
67 Correct 104 ms 60068 KB Output is correct
68 Correct 123 ms 60088 KB Output is correct
69 Correct 98 ms 59812 KB Output is correct
70 Correct 101 ms 59868 KB Output is correct
71 Correct 68 ms 46704 KB Output is correct
72 Correct 73 ms 46680 KB Output is correct
73 Correct 66 ms 45660 KB Output is correct
74 Correct 65 ms 45688 KB Output is correct
75 Correct 58 ms 44796 KB Output is correct
76 Correct 61 ms 45588 KB Output is correct
77 Correct 60 ms 44632 KB Output is correct
78 Correct 85 ms 46724 KB Output is correct
79 Correct 89 ms 46176 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 30812 KB Output is correct
2 Correct 6 ms 30812 KB Output is correct
3 Correct 5 ms 30808 KB Output is correct
4 Correct 4 ms 30812 KB Output is correct
5 Correct 5 ms 30812 KB Output is correct
6 Correct 5 ms 30812 KB Output is correct
7 Correct 5 ms 30812 KB Output is correct
8 Correct 5 ms 30812 KB Output is correct
9 Correct 5 ms 30808 KB Output is correct
10 Correct 4 ms 30812 KB Output is correct
11 Correct 5 ms 30812 KB Output is correct
12 Correct 5 ms 30808 KB Output is correct
13 Correct 5 ms 30944 KB Output is correct
14 Correct 5 ms 30812 KB Output is correct
15 Correct 5 ms 30812 KB Output is correct
16 Correct 5 ms 30812 KB Output is correct
17 Correct 5 ms 30812 KB Output is correct
18 Correct 6 ms 30812 KB Output is correct
19 Correct 5 ms 30932 KB Output is correct
20 Correct 5 ms 30808 KB Output is correct
21 Correct 4 ms 30812 KB Output is correct
22 Correct 5 ms 30812 KB Output is correct
23 Correct 5 ms 30812 KB Output is correct
24 Correct 5 ms 30808 KB Output is correct
25 Correct 6 ms 31068 KB Output is correct
26 Correct 6 ms 31216 KB Output is correct
27 Correct 7 ms 31092 KB Output is correct
28 Correct 6 ms 31200 KB Output is correct
29 Correct 7 ms 31064 KB Output is correct
30 Correct 6 ms 31208 KB Output is correct
31 Correct 6 ms 30968 KB Output is correct
32 Correct 6 ms 31068 KB Output is correct
33 Correct 6 ms 31068 KB Output is correct
34 Correct 7 ms 31068 KB Output is correct
35 Correct 6 ms 30812 KB Output is correct
36 Correct 6 ms 31068 KB Output is correct
37 Correct 7 ms 31580 KB Output is correct
38 Correct 6 ms 31580 KB Output is correct
39 Correct 6 ms 31068 KB Output is correct
40 Correct 6 ms 31056 KB Output is correct
41 Correct 6 ms 31068 KB Output is correct
42 Correct 6 ms 31068 KB Output is correct
43 Correct 6 ms 31068 KB Output is correct
44 Correct 6 ms 31224 KB Output is correct
45 Correct 81 ms 45948 KB Output is correct
46 Correct 83 ms 46976 KB Output is correct
47 Correct 80 ms 45428 KB Output is correct
48 Correct 83 ms 46804 KB Output is correct
49 Correct 75 ms 45820 KB Output is correct
50 Correct 89 ms 46840 KB Output is correct
51 Correct 83 ms 46948 KB Output is correct
52 Correct 49 ms 39072 KB Output is correct
53 Correct 55 ms 39300 KB Output is correct
54 Correct 130 ms 82092 KB Output is correct
55 Correct 130 ms 77728 KB Output is correct
56 Correct 124 ms 77720 KB Output is correct
57 Correct 56 ms 42148 KB Output is correct
58 Correct 52 ms 39072 KB Output is correct
59 Correct 59 ms 40032 KB Output is correct
60 Correct 66 ms 41512 KB Output is correct
61 Correct 72 ms 43052 KB Output is correct
62 Correct 66 ms 43064 KB Output is correct
63 Correct 72 ms 42300 KB Output is correct
64 Correct 76 ms 43364 KB Output is correct
65 Correct 225 ms 103212 KB Output is correct
66 Correct 221 ms 103480 KB Output is correct
67 Correct 104 ms 60068 KB Output is correct
68 Correct 123 ms 60088 KB Output is correct
69 Correct 98 ms 59812 KB Output is correct
70 Correct 101 ms 59868 KB Output is correct
71 Correct 68 ms 46704 KB Output is correct
72 Correct 73 ms 46680 KB Output is correct
73 Correct 66 ms 45660 KB Output is correct
74 Correct 65 ms 45688 KB Output is correct
75 Correct 58 ms 44796 KB Output is correct
76 Correct 61 ms 45588 KB Output is correct
77 Correct 60 ms 44632 KB Output is correct
78 Correct 85 ms 46724 KB Output is correct
79 Correct 89 ms 46176 KB Output is correct
80 Correct 853 ms 202904 KB Output is correct
81 Correct 888 ms 202880 KB Output is correct
82 Correct 906 ms 191336 KB Output is correct
83 Correct 876 ms 203000 KB Output is correct
84 Correct 851 ms 203768 KB Output is correct
85 Correct 865 ms 200176 KB Output is correct
86 Correct 905 ms 206336 KB Output is correct
87 Correct 466 ms 116636 KB Output is correct
88 Correct 522 ms 117044 KB Output is correct
89 Correct 1527 ms 645820 KB Output is correct
90 Correct 1381 ms 574436 KB Output is correct
91 Correct 1380 ms 573952 KB Output is correct
92 Correct 559 ms 148264 KB Output is correct
93 Correct 451 ms 116676 KB Output is correct
94 Correct 574 ms 131644 KB Output is correct
95 Correct 726 ms 153108 KB Output is correct
96 Correct 765 ms 174516 KB Output is correct
97 Correct 602 ms 146376 KB Output is correct
98 Correct 728 ms 164992 KB Output is correct
99 Correct 833 ms 183736 KB Output is correct
100 Correct 3217 ms 819656 KB Output is correct
101 Correct 3191 ms 814344 KB Output is correct
102 Correct 1127 ms 366224 KB Output is correct
103 Correct 1094 ms 364192 KB Output is correct
104 Correct 1035 ms 352028 KB Output is correct
105 Correct 1039 ms 350036 KB Output is correct
106 Correct 629 ms 174088 KB Output is correct
107 Correct 589 ms 173920 KB Output is correct
108 Correct 585 ms 179668 KB Output is correct
109 Correct 596 ms 181900 KB Output is correct
110 Correct 558 ms 173812 KB Output is correct
111 Correct 537 ms 174228 KB Output is correct
112 Correct 569 ms 173856 KB Output is correct
113 Correct 843 ms 191068 KB Output is correct
114 Correct 857 ms 202768 KB Output is correct