Submission #58771

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
58771	2018-07-19 09:45:42	andy627	트리 (KOI16_tree)	C++17	100 / 100	528 ms	26260 KiB

tree

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#include <stdio.h>
#include <vector>
#include <algorithm>
#define pii pair<int,int>
#define ff first
#define ss second
#define ele (1<<18)
#define INF 2e9
using namespace std;
struct node{
    int root=INF;
}sgt[ele<<1];
vector<int> edge[222222];
int num_pos=1;
pii sub[222222];
bool is_gone[222222];
void dfs_num(int v){
    sub[v].ff=num_pos;
    for(int i=0;i<edge[v].size();i++){
        if(is_gone[edge[v][i]]) continue;
        is_gone[edge[v][i]]=1;
        dfs_num(edge[v][i]);
    }
    sub[v].ss=num_pos++;
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

tree.cpp: In function 'void dfs_num(int)':
tree.cpp:23:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<edge[v].size();i++){
                 ~^~~~~~~~~~~~~~~
tree.cpp: In function 'int main()':
tree.cpp:65:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d",&n,&q);
     ~~~~~^~~~~~~~~~~~~~~
tree.cpp:68:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&par);
         ~~~~~^~~~~~~~~~~
tree.cpp:78:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d %d",&a,&b,&c);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 13 / 13
• Subtask 3: 14 / 14
• Subtask 4: 19 / 19
• Subtask 5: 45 / 45