Submission #92092

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
92092	2019-01-01 13:30:37	maruii	Construction of Highway (JOI18_construction)	C++17	100 / 100	799 ms	22204 KiB

construction

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#include<bits/stdc++.h>
using namespace std;
const int MAXN = 1000001;
const int SIZE = 1<<17;
#define ff first
#define ss second
int A[MAXN], B[MAXN], C[MAXN], dth[MAXN], prt[17][MAXN], dfn[MAXN], edfn[MAXN], dfnn;
vector<int> edge[100001];
void dfs(int x){
  dfn[x] = ++dfnn;
  for(auto &i: edge[x]){
    prt[0][i] = x;
    dth[i] = dth[x]+1;
    dfs(i);
  }
  edfn[x] = dfnn;
}
struct ST{
  int data[2*SIZE];
  void update(int x, int v){
    for(x+=SIZE; x; x>>=1)
      data[x] = max(data[x], v);
  }
  int query(int s, int e){
    int ret = 0;
    for(s+=SIZE, e+=SIZE; s<=e; s>>=1, e>>=1){
      if(s&1) ret = max(ret, data[s++]);
      if(~e&1) ret = max(ret, data[e--]);
    }
    return ret;
 
 
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Compilation message (stderr)

construction.cpp: In function 'int main()':
construction.cpp:57:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&N);
  ~~~~~^~~~~~~~~
construction.cpp:58:41: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1; i<=N; ++i) scanf("%d",C+i), cc.push_back(C[i]);
                          ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
construction.cpp:63:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",A+i,B+i);
   ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 9 / 9
• Subtask 3: 84 / 84