제출 #798166

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
798166	2023-07-30 12:27:19	Ronin13	Magic Tree (CEOI19_magictree)	C++17	100 / 100	857 ms	213408 KiB

magictree

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#include <iostream>
#include <vector>
#include <stdio.h>
#include <algorithm>
#include <set>
#include <queue>
#include <map>
#include <bitset>
 
#define ll long long 
#define ull unsigned ll
#define f first
#define s second 
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pb push_back
#define epb emplace_back
 
using namespace std;
 
struct node{
    node *l, *r;
    ll lazy, mx;
    node(){
        l = r = NULL;
        lazy = mx = 0;
    }
    node(node *l, node *r) : l(l), r(r){
        mx = 0, lazy =0;
        if(l != NULL) mx = max(mx, l->mx);
 
 
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컴파일 시 표준 에러 (stderr) 메시지

magictree.cpp: In function 'void dfs(int, int)':
magictree.cpp:107:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  107 |     for(int i = 0; i < g[v].size(); ++i){
      |                    ~~^~~~~~~~~~~~~
magictree.cpp:124:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  124 |     for(int i = 0; i < g[v].size(); ++i){
      |                    ~~^~~~~~~~~~~~~
magictree.cpp: In function 'node* update_p(node*, int, int, int, long long int)':
magictree.cpp:83:1: warning: control reaches end of non-void function [-Wreturn-type]
   83 | }
      | ^

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