Submission #373486

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
373486	2021-03-04 19:58:09	eulerdesoja	Traffic (IOI10_traffic)	C++14	Compilation error	0 ms	0 KiB

traffic

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#include<bits/stdc++.h>
#include<fstream>
using namespace std;
#define int long long
#define pb push_back
#define sz(x) int(x.size())
typedef pair<int,int>ii;
typedef vector<int> vi;
const int mxn=1e6+6;
//maximum of congestion in a road
vi g[mxn];  
int ma[mxn],sum[mxn];
void dfs(int i,int p,int a[]){
  for(int j:g[i])if(j!=p){
    dfs(j,i,a);
    sum[i]+=sum[j];
    ma[i]=max(ma[i],max(ma[j],sum[j]));
  }
  sum[i]+=a[i];
}
int LocateCentre(int n,int a[],int s[],int d[]){
  
  for(int i=0;i<n-1;i++){
    g[s[i]].pb(d[i]);
    g[d[i]].pb(s[i]);
  }
  int ans=1e18,res;
 
 
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Compilation message (stderr)

traffic.cpp: In function 'long long int LocateCentre(long long int, long long int*, long long int*, long long int*)':
traffic.cpp:40:9: warning: 'res' may be used uninitialized in this function [-Wmaybe-uninitialized]
   40 |  return res;
      |         ^~~
/tmp/ccmiGtr0.o: In function `main':
grader.cpp:(.text.startup+0xd9): undefined reference to `LocateCentre(int, int*, int*, int*)'
collect2: error: ld returned 1 exit status