Submission #143462

#	Time	Username	Problem	Language	Result	Execution time	Memory
143462		bortoz	popa (BOI18_popa)	C++17	100 / 100	105 ms	452 KiB

popa

#include "bits/stdc++.h"
#include "popa.h"
using namespace std;

int solve(int N, int* L, int* R) {
  vector<int> stk;
  for (int i = 0; i < N; i++) {
    L[i] = R[i] = -1;
    while (!stk.empty()) {
      if (!query(stk.back(), i, i, i)) {
        break;
      }
      L[i] = stk.back();
      stk.pop_back();
    }
    if (!stk.empty()) {
      R[stk.back()] = i;
    }
    stk.push_back(i);
  }
  return stk[0];
}

• Subtask 1: 37 / 37
• Subtask 2: 24 / 24
• Subtask 3: 39 / 39