oj.uz

Submission #707476

# Submission time Handle Problem Language Result Execution time Memory
707476 2023-03-09T04:26:50 Z EthanKim8683 Bitaro’s Party (JOI18_bitaro) C++17
100 / 100
 1685 ms 225164 KB 
#include<bits/stdc++.h>
using namespace std;
using I=int;
using B=bool;
const I N=100000;
const I Y=100000;
const I MAX=1e9;
const I MIN=-MAX;
vector<I>adjs[N];
vector<pair<I,I>>tops[N];
priority_queue<tuple<I,I,I,I>>ques;
I c_arr[Y];
I uses[N];
B viss[N];
I bsys[N];
I diss[N];
I tims[N];
I tim=1;
I siz;
void dfs1(I a){
  if(viss[a])return;
  viss[a]=1;
  for(auto b:adjs[a])dfs1(b);
  while(ques.size())ques.pop();
  ques.push({0,a,a,MAX});
  for(auto b:adjs[a]){
    auto[dis,x]=tops[b][0];
    ques.push({dis+1,x,b,0});
  }
  while(tops[a].size()<siz&&ques.size()){
    auto[dis1,x,b,i]=ques.top();ques.pop();
    if(uses[x]!=tim)tops[a].push_back({dis1,x}),uses[x]=tim;
    if(i+1<tops[b].size()){
      auto[dis2,y]=tops[b][i+1];
      ques.push({dis2+1,y,b,i+1});
    }
  }
  tim++;
}
I dfs2(I a){
  if(tims[a]==tim)return diss[a];
  tims[a]=tim,diss[a]=bsys[a]==tim?MIN:0;
  for(auto b:adjs[a])if(dfs2(b)!=MIN)diss[a]=max(diss[a],diss[b]+1);
  return diss[a];
}
I main(){
  cin.tie(0)->sync_with_stdio(0);
  I n,m,q;cin>>n>>m>>q;
  for(I i=0;i<m;i++){
    I s,e;cin>>s>>e,s--,e--;
    adjs[e].push_back(s);
  }
  siz=max(sqrt(n)/2,1.);
  for(I i=n-1;i>=0;i--)dfs1(i);
  while(q--){
    I t,y;cin>>t>>y,t--;
    for(I i=0;i<y;i++){I c;cin>>c,bsys[c_arr[i]=c-1]=tim;}
    I res=MIN;
    for(auto[dis,i]:tops[t])if(bsys[i]!=tim){res=dis;break;}
    if(res==MIN&&y>=siz)res=dfs2(t);
    printf("%i\n",res==MIN?-1:res);
    tim++;
  }
}

Compilation message

bitaro.cpp: In function 'void dfs1(I)':
bitaro.cpp:30:23: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'I' {aka 'int'} [-Wsign-compare]
   30 |   while(tops[a].size()<siz&&ques.size()){
      |         ~~~~~~~~~~~~~~^~~~
bitaro.cpp:33:11: warning: comparison of integer expressions of different signedness: 'std::tuple_element<0, std::tuple<int> >::type' {aka 'int'} and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |     if(i+1<tops[b].size()){
      |        ~~~^~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 4 ms 5204 KB Output is correct
6 Correct 5 ms 5076 KB Output is correct
7 Correct 3 ms 5204 KB Output is correct
8 Correct 4 ms 5332 KB Output is correct
9 Correct 3 ms 5332 KB Output is correct
10 Correct 4 ms 5332 KB Output is correct
11 Correct 4 ms 5204 KB Output is correct
12 Correct 4 ms 5204 KB Output is correct
13 Correct 4 ms 5204 KB Output is correct
14 Correct 4 ms 5076 KB Output is correct
15 Correct 4 ms 5072 KB Output is correct
16 Correct 4 ms 5076 KB Output is correct
17 Correct 4 ms 5204 KB Output is correct
18 Correct 4 ms 5076 KB Output is correct
19 Correct 4 ms 5204 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 4 ms 5204 KB Output is correct
6 Correct 5 ms 5076 KB Output is correct
7 Correct 3 ms 5204 KB Output is correct
8 Correct 4 ms 5332 KB Output is correct
9 Correct 3 ms 5332 KB Output is correct
10 Correct 4 ms 5332 KB Output is correct
11 Correct 4 ms 5204 KB Output is correct
12 Correct 4 ms 5204 KB Output is correct
13 Correct 4 ms 5204 KB Output is correct
14 Correct 4 ms 5076 KB Output is correct
15 Correct 4 ms 5072 KB Output is correct
16 Correct 4 ms 5076 KB Output is correct
17 Correct 4 ms 5204 KB Output is correct
18 Correct 4 ms 5076 KB Output is correct
19 Correct 4 ms 5204 KB Output is correct
20 Correct 53 ms 6300 KB Output is correct
21 Correct 47 ms 6352 KB Output is correct
22 Correct 53 ms 6300 KB Output is correct
23 Correct 57 ms 6300 KB Output is correct
24 Correct 734 ms 150976 KB Output is correct
25 Correct 758 ms 155652 KB Output is correct
26 Correct 773 ms 155704 KB Output is correct
27 Correct 778 ms 224792 KB Output is correct
28 Correct 780 ms 224764 KB Output is correct
29 Correct 781 ms 225160 KB Output is correct
30 Correct 807 ms 213152 KB Output is correct
31 Correct 809 ms 205208 KB Output is correct
32 Correct 791 ms 213172 KB Output is correct
33 Correct 527 ms 133064 KB Output is correct
34 Correct 476 ms 114476 KB Output is correct
35 Correct 526 ms 131972 KB Output is correct
36 Correct 656 ms 172188 KB Output is correct
37 Correct 669 ms 159984 KB Output is correct
38 Correct 662 ms 172772 KB Output is correct

Subtask #3
86.0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 4 ms 5204 KB Output is correct
6 Correct 5 ms 5076 KB Output is correct
7 Correct 3 ms 5204 KB Output is correct
8 Correct 4 ms 5332 KB Output is correct
9 Correct 3 ms 5332 KB Output is correct
10 Correct 4 ms 5332 KB Output is correct
11 Correct 4 ms 5204 KB Output is correct
12 Correct 4 ms 5204 KB Output is correct
13 Correct 4 ms 5204 KB Output is correct
14 Correct 4 ms 5076 KB Output is correct
15 Correct 4 ms 5072 KB Output is correct
16 Correct 4 ms 5076 KB Output is correct
17 Correct 4 ms 5204 KB Output is correct
18 Correct 4 ms 5076 KB Output is correct
19 Correct 4 ms 5204 KB Output is correct
20 Correct 53 ms 6300 KB Output is correct
21 Correct 47 ms 6352 KB Output is correct
22 Correct 53 ms 6300 KB Output is correct
23 Correct 57 ms 6300 KB Output is correct
24 Correct 734 ms 150976 KB Output is correct
25 Correct 758 ms 155652 KB Output is correct
26 Correct 773 ms 155704 KB Output is correct
27 Correct 778 ms 224792 KB Output is correct
28 Correct 780 ms 224764 KB Output is correct
29 Correct 781 ms 225160 KB Output is correct
30 Correct 807 ms 213152 KB Output is correct
31 Correct 809 ms 205208 KB Output is correct
32 Correct 791 ms 213172 KB Output is correct
33 Correct 527 ms 133064 KB Output is correct
34 Correct 476 ms 114476 KB Output is correct
35 Correct 526 ms 131972 KB Output is correct
36 Correct 656 ms 172188 KB Output is correct
37 Correct 669 ms 159984 KB Output is correct
38 Correct 662 ms 172772 KB Output is correct
39 Correct 771 ms 152548 KB Output is correct
40 Correct 763 ms 153380 KB Output is correct
41 Correct 760 ms 153776 KB Output is correct
42 Correct 745 ms 153916 KB Output is correct
43 Correct 746 ms 153060 KB Output is correct
44 Correct 76 ms 6696 KB Output is correct
45 Correct 58 ms 6316 KB Output is correct
46 Correct 56 ms 6328 KB Output is correct
47 Correct 50 ms 6284 KB Output is correct
48 Correct 52 ms 6180 KB Output is correct
49 Correct 832 ms 224780 KB Output is correct
50 Correct 802 ms 224164 KB Output is correct
51 Correct 80 ms 6688 KB Output is correct
52 Correct 553 ms 6436 KB Output is correct
53 Correct 715 ms 171596 KB Output is correct
54 Correct 667 ms 159620 KB Output is correct
55 Correct 672 ms 171084 KB Output is correct
56 Correct 658 ms 159904 KB Output is correct
57 Correct 79 ms 6664 KB Output is correct
58 Correct 74 ms 6652 KB Output is correct
59 Correct 572 ms 6316 KB Output is correct
60 Correct 558 ms 6436 KB Output is correct
61 Correct 967 ms 225004 KB Output is correct
62 Correct 777 ms 172716 KB Output is correct
63 Correct 707 ms 159604 KB Output is correct
64 Correct 1402 ms 225144 KB Output is correct
65 Correct 962 ms 172116 KB Output is correct
66 Correct 666 ms 159944 KB Output is correct
67 Correct 1685 ms 225100 KB Output is correct
68 Correct 1181 ms 172892 KB Output is correct
69 Correct 632 ms 157900 KB Output is correct
70 Correct 799 ms 225020 KB Output is correct
71 Correct 696 ms 172340 KB Output is correct
72 Correct 672 ms 160076 KB Output is correct
73 Correct 859 ms 224988 KB Output is correct
74 Correct 764 ms 172564 KB Output is correct
75 Correct 673 ms 159936 KB Output is correct
76 Correct 835 ms 225164 KB Output is correct
77 Correct 807 ms 224660 KB Output is correct
78 Correct 800 ms 224612 KB Output is correct
79 Correct 76 ms 6716 KB Output is correct
80 Correct 52 ms 6436 KB Output is correct
81 Correct 48 ms 6416 KB Output is correct
82 Correct 829 ms 213540 KB Output is correct
83 Correct 851 ms 205520 KB Output is correct
84 Correct 828 ms 213056 KB Output is correct
85 Correct 804 ms 205084 KB Output is correct
86 Correct 826 ms 213100 KB Output is correct
87 Correct 828 ms 205540 KB Output is correct
88 Correct 75 ms 6628 KB Output is correct
89 Correct 93 ms 6660 KB Output is correct
90 Correct 60 ms 6332 KB Output is correct
91 Correct 55 ms 6220 KB Output is correct
92 Correct 62 ms 6216 KB Output is correct
93 Correct 49 ms 6228 KB Output is correct
94 Correct 543 ms 133372 KB Output is correct
95 Correct 510 ms 113960 KB Output is correct
96 Correct 527 ms 132292 KB Output is correct
97 Correct 487 ms 115612 KB Output is correct
98 Correct 560 ms 132704 KB Output is correct
99 Correct 501 ms 115296 KB Output is correct
100 Correct 75 ms 6692 KB Output is correct
101 Correct 72 ms 6672 KB Output is correct
102 Correct 53 ms 6288 KB Output is correct
103 Correct 52 ms 6332 KB Output is correct
104 Correct 47 ms 6272 KB Output is correct
105 Correct 49 ms 6220 KB Output is correct
106 Correct 690 ms 171940 KB Output is correct
107 Correct 675 ms 160316 KB Output is correct
108 Correct 704 ms 172496 KB Output is correct
109 Correct 717 ms 159372 KB Output is correct
110 Correct 660 ms 172676 KB Output is correct
111 Correct 652 ms 160352 KB Output is correct
112 Correct 80 ms 6596 KB Output is correct
113 Correct 75 ms 6732 KB Output is correct
114 Correct 54 ms 6244 KB Output is correct
115 Correct 55 ms 6288 KB Output is correct
116 Correct 48 ms 6220 KB Output is correct
117 Correct 49 ms 6228 KB Output is correct
118 Correct 777 ms 224176 KB Output is correct
119 Correct 674 ms 171992 KB Output is correct
120 Correct 633 ms 159180 KB Output is correct
121 Correct 782 ms 224376 KB Output is correct
122 Correct 690 ms 171552 KB Output is correct
123 Correct 662 ms 158856 KB Output is correct
124 Correct 805 ms 224124 KB Output is correct
125 Correct 672 ms 172368 KB Output is correct
126 Correct 638 ms 158700 KB Output is correct