Submission #108402

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
108402	2019-04-29 06:19:51	Diuven	Cave (IOI13_cave)	C++14	100 / 100	1501 ms	532 KiB

cave

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#include "cave.h"
#include <vector>
using std::vector;
int A[5010], B[5010], n;
int ask(int S[]){
  int res = tryCombination(S);
  return res<0 ? 12345 : res;
}
int ask(int l, int r, int x){
  static int S[5010];
  for(int i=0; i<n; i++)
    S[i] = (A[i]>=0 ? A[i] : (l<=i && i<=r ? x : 1-x));
  return ask(S);
}
void exploreCave(int N) {
  n = N;
  for(int i=0; i<n; i++)
    A[i] = B[i] = -1;
  for(int i=0; i<n; i++){
    // 다 끄고 물어봤을 때, i번째가 열렸으면 0;
    int state = (i>=ask(-1, -1, 1));
    int s=0, e=n-1;
    while(s<e){
      int mid = (s+e)/2;
 
 
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• Subtask 1: 12 / 12
• Subtask 2: 13 / 13
• Subtask 3: 21 / 21
• Subtask 4: 30 / 30
• Subtask 5: 24 / 24