제출 #168319

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
168319		ArKCa	Birokracija (COCI18_birokracija)	C++17	100 / 100	114 ms	27088 KiB

birokracija

#include <bits/stdc++.h>
#define  ll  long long 
#define  mod 1000000007
#define  pb  push_back
#define  pob pop_back
#define  f1  first
#define  s2  second
#define  N   200005
#define  ekle 200
using namespace std;

vector<ll>v[N];
ll ata[N],cocuk[N],deger[N];
ll n;
void atam(ll x,ll dgr){
    if(x==-1)return;
    deger[x]+=dgr;
    atam(ata[x],dgr+1);
}
pair<ll,ll> dfs(ll x){
    pair<ll,ll>sa,as;
    for(ll i=0;i<v[x].size();i++){
        as=dfs(v[x][i]);
        sa.f1+=as.f1;
        sa.s2+=as.s2;
    }
    deger[x]=sa.f1+sa.s2;
    deger[x]++;
    return {deger[x],sa.s2+1};
}
int main(){
	// freopen("a.gir","r",stdin);		
    // freopen("a.cik","w",stdout);
    scanf("%lld",&n);
    ata[1]=-1;
    for(ll i=2;i<=n;i++){
        scanf("%lld",&ata[i]);
        v[ata[i]].pb(i);
    }
    dfs(1);
    for(ll i=1;i<=n;i++){
        printf("%lld ",deger[i] );
    }
}

컴파일 시 표준 에러 (stderr) 메시지

birokracija.cpp: In function 'std::pair<long long int, long long int> dfs(long long int)':
birokracija.cpp:22:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(ll i=0;i<v[x].size();i++){
                ~^~~~~~~~~~~~
birokracija.cpp: In function 'int main()':
birokracija.cpp:34:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld",&n);
     ~~~~~^~~~~~~~~~~
birokracija.cpp:37:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld",&ata[i]);
         ~~~~~^~~~~~~~~~~~~~~~

• 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