Submission #1034801

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1034801	2024-07-25 18:34:14	aymanrs	Highway Tolls (IOI18_highway)	C++17	51 / 100	201 ms	262144 KiB

highway

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include "highway.h"
#include <bits/stdc++.h>
using namespace std;
struct node {
  int p;
  vector<pair<node*, int>> l;
  int d, id;
};
void dfs(node* n, node* p, int d){
  n->d = d;
  for(auto [c,x] : n->l){
    if(c==p) continue;
    c->p = x;
    dfs(c, n, d+1);
  }
}
void zfs(node* n, node* p, vector<node*>& o){
  for(auto [c,x] : n->l){
    if(c!=p) zfs(c, n, o);
  }
  o.push_back(n);
}
void find_pair(int N, std::vector<int> U, std::vector<int> V, int A, int B) {
  node g[N];
  int m = U.size();
  bool tsub = true;
  for(int i = 0;i < U.size();i++){
    tsub &= U[i]==i && V[i]==i+1;
    g[U[i]].l.emplace_back(&g[V[i]], i);
    g[V[i]].l.emplace_back(&g[U[i]], i);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

highway.cpp: In function 'void find_pair(int, std::vector<int>, std::vector<int>, int, int)':
highway.cpp:27:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |   for(int i = 0;i < U.size();i++){
      |                 ~~^~~~~~~~~~
highway.cpp:38:10: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   38 |     mid=l+r>>1;
      |         ~^~
highway.cpp:58:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   58 |     mid = l+r>>1;
      |           ~^~

• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 6 / 6
• Subtask 4: 33 / 33
• Subtask 5: 0 / 18
• Subtask 6: 0 / 31