Submission #42856

#	Time	Username	Problem	Language	Result	Execution time	Memory
42856		iletavcioski	Birokracija (COCI18_birokracija)	C++14	100 / 100	101 ms	28864 KiB

birokracija

#include <iostream>
#include <vector>
#include <algorithm>
#include <iomanip>
#include <cmath>
using namespace std;
typedef long long ll;
vector<vector<int> > v;
ll dp[200002];
ll dp_1[200002];
void dfs(int x)
{
    ll brojac=1;
    for(int i=0;i<v[x].size();i++)
    {
        dfs(v[x][i]);
        dp_1[x]+=dp_1[v[x][i]];
        dp[x]+=dp[v[x][i]];
    }
    dp_1[x]++;
    dp[x]+=dp_1[x];
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie();
    cout.tie();
    int n;
    cin>>n;
    vector<int> vec;
    v.insert(v.begin(),n+1,vec);
    for(int i=1;i<n;i++)
    {
        int a;
        cin>>a;
        a--;
        v[a].push_back(i);
    }
    for(int i=0;i<n;i++)
        sort(v[i].begin(),v[i].end());
    dfs(0);
    for(int i=0;i<n;i++)
    {
        if(i)
            cout<<" ";
        cout<<dp[i];
    }
    cout<<endl;
    return 0;
}

Compilation message (stderr)

birokracija.cpp: In function 'void dfs(int)':
birokracija.cpp:15:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<v[x].size();i++)
                  ^
birokracija.cpp:14:8: warning: unused variable 'brojac' [-Wunused-variable]
     ll brojac=1;
        ^

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10