Submission #640203

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
640203	2022-09-14 00:48:06	iee	Putovanje (COCI20_putovanje)	C++17	110 / 110	156 ms	27268 KiB

putovanje

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#include <bits/stdc++.h>
using namespace std;
const int N = 2e5 + 5, Log = 20;
using ll = long long;
int n, a[N], b[N], c1[N], c2[N];
vector<tuple<int, int, int>> e[N];
ll ans;
int d[N];
int anc[N][Log];
int wc1[N], wc2[N];
int dep[N];
void dfs1(int u, int fa) {
  anc[u][0] = fa;
  dep[u] = dep[fa] + 1;
  for (int i = 1; i < Log; ++i) anc[u][i] = anc[anc[u][i - 1]][i - 1];
  for (auto ver: e[u]) {
    int v, C1, C2;
    tie(v, C1, C2) = ver;
    if (v == fa) continue;
    wc1[v] = C1;
    wc2[v] = C2;
    dfs1(v, u);
  }
}
int lca(int u, int v) {
  if (dep[u] < dep[v])
    swap(u, v);
  for (int i = Log - 1; i >= 0; --i)
    if (dep[anc[u][i]] >= dep[v])
      u = anc[u][i];
 
 
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Compilation message (stderr)

putovanje.cpp: In function 'int main()':
putovanje.cpp:45:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   45 |   scanf("%d", &n);
      |   ~~~~~^~~~~~~~~~
putovanje.cpp:47:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   47 |     scanf("%d%d%d%d", a+i, b+i, c1+i, c2+i);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 25 / 25
• Subtask 3: 65 / 65