제출 #570487

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
570487	2022-05-30 07:45:00	groshi	구슬과 끈 (APIO14_beads)	C++17	100 / 100	183 ms	32608 KiB

beads

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#include<iostream>
#include<vector>
#include<algorithm>
using namespace std;
#define int long long
int inf=1e9;
struct wi{
    vector<int> Q;
    long long dp[4]={0,0,0,0};///0->srodek i zost, 1->srodek i gora, 2->pocz, 3-> kon
    long long do_ojca=0;
}*w;
void dfs(int x,int ojc)
{
    if(w[x].Q.size()==2 && ojc!=0)
        return;
    long long a=-inf,b=-inf,c=-inf,d=-inf,e=-inf;
    int gdzie1,gdzie2,skad1,skad2;
    long long suma=0;
    for(int i=0;i<w[x].Q.size();i+=2)
    {
        int pom=w[x].Q[i];
        int koszt=w[x].Q[i+1];
        if(pom==ojc)
            continue;
        w[pom].do_ojca=koszt;
        dfs(pom,x);
        long long teraz=max(w[pom].dp[0],w[pom].dp[2]);
        suma+=teraz;
        long long srodek=max(w[pom].dp[1],w[pom].dp[3])-teraz;
        if(srodek>e)
 
 
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컴파일 시 표준 에러 (stderr) 메시지

beads.cpp: In function 'void dfs(long long int, long long int)':
beads.cpp:19:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |     for(int i=0;i<w[x].Q.size();i+=2)
      |                 ~^~~~~~~~~~~~~~
beads.cpp:17:16: warning: variable 'gdzie2' set but not used [-Wunused-but-set-variable]
   17 |     int gdzie1,gdzie2,skad1,skad2;
      |                ^~~~~~
beads.cpp:17:29: warning: variable 'skad2' set but not used [-Wunused-but-set-variable]
   17 |     int gdzie1,gdzie2,skad1,skad2;
      |                             ^~~~~
beads.cpp:62:5: warning: 'skad1' may be used uninitialized in this function [-Wmaybe-uninitialized]
   62 |     if(gdzie1!=skad1)
      |     ^~
beads.cpp:62:5: warning: 'gdzie1' may be used uninitialized in this function [-Wmaybe-uninitialized]

• Subtask 1: 13 / 13
• Subtask 2: 15 / 15
• Subtask 3: 29 / 29
• Subtask 4: 43 / 43