Submission #110490

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
110490	2019-05-11 00:14:13	wilwxk	Ball Machine (BOI13_ballmachine)	C++11	8.57 / 100	1088 ms	21368 KiB

ballmachine

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#include <bits/stdc++.h>
using namespace std;
const int MAXN=1e5+5;
const int LOGN=22;
vector<int> g[MAXN];
int dp[MAXN][LOGN];
int prof[MAXN], gin[MAXN];
int marc[MAXN];
set<int> s;
int n, q, root;
int contv;
void dfs(int cur, int p) {
  for(auto viz : g[cur]) {
    if(viz==p) continue;
    dp[viz][0]=cur;
    gin[cur]++;
    prof[viz]=prof[cur]+1;
    dfs(viz, cur);
  }
}
int pula(int cur) {
  for(int i=LOGN-1; i>=0; i--) {
    if(marc[dp[cur][i]]) cur=dp[cur][i];
  }
  return cur;
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

ballmachine.cpp: In function 'int main()':
ballmachine.cpp:32:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &q);
  ~~~~~^~~~~~~~~~~~~~~~~
ballmachine.cpp:34:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int a; scanf("%d", &a);
          ~~~~~^~~~~~~~~~
ballmachine.cpp:46:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int a, x; scanf("%d %d", &a, &x);
             ~~~~~^~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 25
• Subtask 2: 0 / 30
• Subtask 3: 8.571428571428571 / 40
• Subtask 4: 0 / 5