제출 #223671

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
223671	2020-04-16 03:07:57	arnold518	Election Campaign (JOI15_election_campaign)	C++14	100 / 100	325 ms	41048 KiB

election_campaign

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int MAXN = 1e5;
int N, Q;
vector<int> adj[MAXN+10];
int par[MAXN+10][25];
int dep[MAXN+10];
int L[MAXN+10], R[MAXN+10], cnt;
struct Query
{
  int u, v, w;
};
vector<Query> A[MAXN+10];
void dfs(int now, int bef, int d)
{
  dep[now]=d;
  par[now][0]=bef;
  L[now]=++cnt;
  for(int nxt : adj[now])
  {
    if(nxt==bef) continue;
 
 
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컴파일 시 표준 에러 (stderr) 메시지

election_campaign.cpp: In function 'int lca(int, int)':
election_campaign.cpp:38:9: warning: unused variable 'j' [-Wunused-variable]
  int i, j;
         ^
election_campaign.cpp: In member function 'void SEG::update(int, int, int, int, int, int)':
election_campaign.cpp:53:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int mid=tl+tr>>1;
           ~~^~~
election_campaign.cpp: In member function 'int SEG::query(int, int, int, int)':
election_campaign.cpp:60:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int mid=tl+tr>>1;
           ~~^~~
election_campaign.cpp: In function 'void dfs2(int, int)':
election_campaign.cpp:69:6: warning: unused variable 'i' [-Wunused-variable]
  int i, j; 
      ^
election_campaign.cpp:69:9: warning: unused variable 'j' [-Wunused-variable]
  int i, j; 
         ^
election_campaign.cpp: In function 'int main()':
election_campaign.cpp:97:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
  ~~~~~^~~~~~~~~~
election_campaign.cpp:101:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &u, &v);
   ~~~~~^~~~~~~~~~~~~~~~
election_campaign.cpp:109:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &Q);
  ~~~~~^~~~~~~~~~
election_campaign.cpp:113:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d%d", &u, &v, &k);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 30 / 30
• Subtask 5: 10 / 10
• Subtask 6: 40 / 40