Submission #435955

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
435955	2021-06-24 02:34:02	cgiosy	Biochips (IZhO12_biochips)	C++17	Compilation error	0 ms	0 KiB

biochips

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// gs14004's code test
#include <bits/stdc++.h>
using namespace std;
int n,m,inp[200005];
int piv,sz[200005],a[200005];
vector<int> g[200005];
int root;
int dfs(int x){
    int num = ++piv;
    a[num] = inp[x];
    sz[num] = 1;
    for(int &i : g[x]){
        sz[num] += dfs(i);
    }
    return sz[num];
}
 
int dp[2][200005];
int main() {
  ios::sync_with_stdio(0);cin.tie(0);
  cin>>n>>m;
  int W[N+1];
  for(int i=1; i<=N; i++) {
    int p;
    cin>>p>>W[i];inp[i]=W[i];
    if(p) g[p].push_back(i);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

biochips.cpp: In function 'int main()':
biochips.cpp:26:8: error: 'N' was not declared in this scope
   26 |  int W[N+1];
      |        ^
biochips.cpp:29:11: error: 'W' was not declared in this scope
   29 |   cin>>p>>W[i];inp[i]=W[i];
      |           ^
biochips.cpp:31:13: error: 'r' was not declared in this scope
   31 |   else root=r=i;
      |             ^