Submission #1086308

#	Time	Username	Problem	Language	Result	Execution time	Memory
1086308		avighna	Passport (JOI23_passport)	C++17	16 / 100	2048 ms	1048576 KiB

passport

#include <bits/stdc++.h>

typedef long long ll;

int main() {
  std::ios_base::sync_with_stdio(false);
  std::cin.tie(nullptr);

  ll n;
  std::cin >> n;
  std::vector<ll> l(n + 1), r(n + 1);
  for (ll i = 1; i <= n; ++i) {
    std::cin >> l[i] >> r[i];
  }

  ll q;
  std::cin >> q;
  while (q--) {
    ll x;
    std::cin >> x;
    std::vector dp(n + 1, std::vector<ll>(n + 1, 1e15));
    dp[x][x] = 0;
    for (ll len = 1; len <= n; ++len) {
      for (ll i = 1; i + len - 1 <= n; ++i) {
        for (ll j = i; j <= i + len - 1; ++j) {
          ll _l = std::min(i, l[j]);
          ll _r = std::max(i + len - 1, r[j]);
          dp[_l][_r] = std::min(dp[_l][_r], dp[i][i + len - 1] + 1);
        }
      }
    }
    std::cout << (dp[1][n] == ll(1e15) ? -1 : dp[1][n]) << '\n';
  }
}

• Subtask 1: 0 / 6
• Subtask 2: 16 / 16
• Subtask 3: 0 / 24
• Subtask 4: 0 / 8
• Subtask 5: 0 / 46