Submission #748247

#	Time	Username	Problem	Language	Result	Execution time	Memory
748247		kkkkkkkk	Friend (IOI14_friend)	C++14	19 / 100	1 ms	340 KiB

friend

#include <bits/stdc++.h>
 
using namespace std;
 
int *C;
int dp[1005][2];
vector<int> G[1005];
 
void f(int teme) {
    if (G[teme].size()==0) {
        dp[teme][0]=C[teme];
        dp[teme][1]=0;
    }
    dp[teme][0]=C[teme];
    for (int i=0;i<G[teme].size();i++){
        int child=G[teme][i];
        f(child);
        dp[teme][0]+=dp[child][1];
        dp[teme][1]+=max(dp[child][0],dp[child][1]);
    }
}
 
int findSample(int n,int confidence[],int host[],int protocol[]) {
    C=confidence;
    for (int i=1;i<n;i++)
        G[host[i]].push_back(i);
    f(0);
    return max(dp[0][0],dp[0][1]);
}

Compilation message (stderr)

friend.cpp: In function 'void f(int)':
friend.cpp:15:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |     for (int i=0;i<G[teme].size();i++){
      |                  ~^~~~~~~~~~~~~~~

• Subtask 1: 0 / 11
• Subtask 2: 0 / 8
• Subtask 3: 0 / 8
• Subtask 4: 19 / 19
• Subtask 5: 0 / 23
• Subtask 6: 0 / 31