Submission #105706

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
105706	2019-04-14 04:16:43	Pro_ktmr	전압 (JOI14_voltage)	C++14	100 / 100	493 ms	33268 KiB

voltage

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#include"bits/stdc++.h"
using namespace std;
#define LL long long
#define REP(i, n) for(int (i)=0; (i)<(n); (i)++)
#define PB push_back
#define MP make_pair
#define all(x) x.begin(),x.end()
struct SegmentTree{
private:
  int n;
  vector<long long> nodes;
public:
  void init(int N){ //初期化する O(N)
    nodes.clear();
    n = 1;
    while(n < N) n *= 2;
    n = 2 * n -1;
    for(int i=0; i<n; i++) nodes.push_back(LLONG_MAX);
  }
  void update(int i, long long x){ //値を変更する O(log N)
    i += n / 2;
    nodes[i] = x;
    while(i > 0){
      i = (i-1)/2; //親の取得は(i-1)/2
      nodes[i] = min(nodes[i*2+1], nodes[i*2+2]); //子の取得はi*2+1,i*2+2
    }
  }
  long long minimum(int a, int b, int k=0, int l=0, int r=-1){ //[a,b)の最小値を求める O(log N)
    if(r == -1) r = n/2+1;
 
 
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Compilation message (stderr)

voltage.cpp: In function 'void dfs(int)':
voltage.cpp:73:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<tonari[now].size(); i++){
               ~^~~~~~~~~~~~~~~~~~~
voltage.cpp: In function 'void dfs2(int)':
voltage.cpp:97:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<child[now].size(); i++){
               ~^~~~~~~~~~~~~~~~~~
voltage.cpp: In function 'int main()':
voltage.cpp:152:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<other.size(); i++){
               ~^~~~~~~~~~~~~
voltage.cpp:166:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<order.size(); i++) st.update(i, order[i]);
               ~^~~~~~~~~~~~~
voltage.cpp:171:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<other.size(); i++){
               ~^~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 35 / 35
• Subtask 4: 45 / 45