Submission #163207

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
163207	2019-11-11 18:08:52	Minnakhmetov	Railway (BOI17_railway)	C++14	100 / 100	149 ms	23852 KiB

railway

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#include <bits/stdc++.h>
    
#define ll long long
#define all(aaa) aaa.begin(), aaa.end()
 
using namespace std;
struct E {
  int to, i;
};
const int N = 1e5 + 5, L = 19;
int tin[N], tout[N], p[N][L], w[N];
int n, m, k, timer = 0;
vector<E> g[N];
vector<int> ans;
void dfs(int node) {
  tin[node] = ++timer;
  for (int i = 1; i < L; i++) {
    p[node][i] = p[p[node][i - 1]][i - 1];
  }
  for (E e : g[node]) {
    if (e.to != p[node][0]) {
      p[e.to][0] = node;
      dfs(e.to);
    }
  }
  tout[node] = timer;
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

railway.cpp: In function 'int main()':
railway.cpp:89:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      for (int j = 0; j < v.size(); j++) {
                      ~~^~~~~~~~~~
railway.cpp:90:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       int h = (j + 1 == v.size() ? 0 : j + 1),
                ~~~~~~^~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 15 / 15
• Subtask 3: 7 / 7
• Subtask 4: 29 / 29
• Subtask 5: 16 / 16
• Subtask 6: 25 / 25