Submission #332152

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
332152	2020-12-01 14:52:37	quocnguyen1012	Roller Coaster Railroad (IOI16_railroad)	C++14	64 / 100	287 ms	19800 KiB

railroad

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#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const int maxn = 4e5 + 5;
int lab[maxn], deg[maxn];
int n;
int findset(int u) {
  if (lab[u] == u) return u;
  return lab[u] = findset(lab[u]);
}
bool join(int u, int v) {
  u = findset(u); v = findset(v);
  if (u == v) return false;
  lab[v] = u;
  return true;
}
long long plan_roller_coaster(vector<int> s, vector<int> t) {
  vector<int> coor;
  n = s.size();
  for (int & i : s) coor.push_back(i);
  for (int & i : t) coor.push_back(i);
  sort(coor.begin(), coor.end());
  coor.erase(unique(coor.begin(), coor.end()), coor.end());
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

railroad.cpp: In function 'long long int plan_roller_coaster(std::vector<int>, std::vector<int>)':
railroad.cpp:51:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   51 |   for (int i = 0; i + 1 < coor.size(); ++i) {
      |                   ~~~~~~^~~~~~~~~~~~~
railroad.cpp:46:7: warning: unused variable 'm' [-Wunused-variable]
   46 |   int m = coor.size();
      |       ^

• Subtask 1: 11 / 11
• Subtask 2: 23 / 23
• Subtask 3: 30 / 30
• Subtask 4: 0 / 36