Submission #702070

#	Time	Username	Problem	Language	Result	Execution time	Memory
702070		PCTprobability	Friend (IOI14_friend)	C++17	Compilation error	0 ms	0 KiB

friend

#include <bits/stdc++.h>
//#include "friend.h"
using namespace std;
using ll = long long;
#define pb push_back
vector<int> g[100000];
int dp[100000][2];
ll con[100000];
void dfs(int a,int b){
  for(auto e:g[a]){
    if(e==b) continue;
    dfs(e,a);
    dp[a][0]+=max(dp[e][0],dp[e][1]);
    dp[a][1]+=dp[e][0];
  }
  dp[a][1]+=con[a];
  dp[a][1]=max(dp[a][1],dp[a][0]);
}
int findSample(int n, vector<int> confidence, vector<int> host, vector<int> protocol){
  for(int i=0;i<n;i++) con[i]=confidence[i];
  for(int i=n-1;i>=1;i--){
    assert(host[i]<i);
    dp[i][1]+=con[i];
    dp[i][1]=max(dp[i][1],dp[i][0]);
    if(protocol[i]==0){
      dp[host[i]][0]+=dp[i][1];
      dp[host[i]][1]+=dp[i][0];
    }
    if(protocol[i]==1){
      dp[host[i]][0]+=dp[i][0];
      dp[host[i]][1]+=dp[i][1];
    }
    if(protocol[i]==2){
    }
  }
  dp[0][1]+=con[0];
  return max(dp[0][1],dp[0][0]);
}
int main(){
  int n;
  cin>>n;
  vector<int> confidence(n);
  for(int i=0;i<n;i++) cin>>confidence[i];
  vector<int> host(n),protocol(n);
  for(int i=0;i<n;i++) cin>>host[i]>>protocol[i];
  cout<<findSample(6,{10,1,1,1,50,100},{0,0,0,0,0,0},{0,1,1,1,1,1})<<endl;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccx13w6o.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccWekfXq.o:friend.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccx13w6o.o: in function `main':
grader.cpp:(.text.startup+0xdd): undefined reference to `findSample(int, int*, int*, int*)'
collect2: error: ld returned 1 exit status