Submission #1120024

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1120024	2024-11-27 18:13:26	abczz	Road Closures (APIO21_roads)	C++17	12 / 100	190 ms	82504 KiB

roads

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#include "roads.h"
#include <iostream>
#include <vector>
#include <array>
#include <algorithm>
#include <queue>
#include <map>
#define ll long long
using namespace std;
array<ll, 2> operator+(array<ll, 2> a, array<ll, 2> b) {
  return {a[0]+b[0], a[1]+b[1]};
};
struct SegTree{
  vector <array<ll, 2>> st;
  vector <array<ll, 2>> X;
  void init(ll x) {
    st.resize(4*x);
  }
  void build(ll id, ll l, ll r) {
    if (l == r) {
      st[id] = {X[l][0], 1};
      return;
    }
    ll mid = (l+r)/2;
    build(id*2, l, mid);
    build(id*2+1, mid+1, r);
    st[id] = st[id*2] + st[id*2+1];
  }
 
 
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Compilation message (stderr)

roads.cpp: In function 'void dfs(long long int, long long int)':
roads.cpp:77:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   77 |   for (int i=0; i<S.size(); ++i) {
      |                 ~^~~~~~~~~
roads.cpp: In function 'std::vector<long long int> minimum_closure_costs(int, std::vector<int>, std::vector<int>, std::vector<int>)':
roads.cpp:99:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::array<long long int, 2> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   99 |     for (int j=0; j<X[i].size(); ++j) {
      |                   ~^~~~~~~~~~~~
roads.cpp:122:38: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  122 |     for (auto u : A) B[u] = dp[u][0] = dp[u][1] = 0;
      |                             ~~~~~~~~~^~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 0 / 14
• Subtask 4: 0 / 10
• Subtask 5: 0 / 17
• Subtask 6: 0 / 25
• Subtask 7: 0 / 22