Submission #132907

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
132907	2019-07-19 23:14:50	KieranHorgan	Meetings (IOI18_meetings)	C++17	19 / 100	5537 ms	21872 KiB

meetings

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#include "meetings.h"
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 100005;
#define int long long
int N, Q;
vector<signed> H,L,R;
int ST[MAXN][20];
int lg(signed x) {return 31 - __builtin_clz(x);}
void buildST() {
  for(int i = 0; i < N; i++)
    ST[i][0] = i;
  for(int j = 1; j < 20; j++)
    for(int i = 0; i + (1<<j) <= N; i++) {
      if(H[ST[i][j-1]] > H[ST[i+(1<<(j-1))][j-1]]) {
        ST[i][j] = ST[i][j-1];
      }
      if(H[ST[i][j-1]] < H[ST[i+(1<<(j-1))][j-1]]) {
        ST[i][j] = ST[i+(1<<(j-1))][j-1];
      }
      if(H[ST[i][j-1]] == H[ST[i+(1<<(j-1))][j-1]]) {
        if(rand()%2)
          ST[i][j] = ST[i][j-1];
        else
          ST[i][j] = ST[i+(1<<(j-1))][j-1];
      }
    }
 
 
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• Subtask 1: 4 / 4
• Subtask 2: 15 / 15
• Subtask 3: 0 / 17
• Subtask 4: 0 / 24
• Subtask 5: 0 / 40