Submission #223196

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
223196	2020-04-15 04:56:30	shenxy	Putovanje (COCI20_putovanje)	C++11	110 / 110	249 ms	19960 KiB

putovanje

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#include <cstdio>
#include <algorithm>
#include <vector>
#include <map>
using namespace std;
typedef pair<int, int> ii;
int N, depth[100000], st[100000], parent[100000], hchild[100000], head[100000], preo[100000], post[100000], cnt = 0;
vector<int> adjlist[100000];
int dfs1(int v) {
  int ms = 0;
  for (int i: adjlist[v]) {
    if (i == parent[v]) continue;
    depth[i] = depth[v] + 1;
    parent[i] = v;
    int temp = dfs1(i);
    st[v] += temp;
    if (temp > ms) ms = temp, hchild[v] = i;
  }
  return st[v];
}
void dfs2(int v) {
  preo[cnt] = v;
  post[v] = cnt++;
  if (hchild[v] != -1) {
    head[hchild[v]] = head[v];
    dfs2(hchild[v]);
  }
  for (int i: adjlist[v]) {
    if (i == parent[v]) continue;
    if (i == hchild[v]) continue;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

putovanje.cpp: In function 'int main()':
putovanje.cpp:53:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
  ~~~~~^~~~~~~~~~
putovanje.cpp:56:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d %d %d", &A, &B, &C, &D);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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