제출 #1290956

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1290956		LIA	Simple game (IZhO17_game)	C++17	0 / 100	9 ms	15928 KiB

game

//
// Created by liasa on 14/11/2025.
//

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define vll vector<ll>

struct Seg {
  vll seg;
  ll sz = 1;
  Seg(ll n) {
    for (; sz < n; sz *= 2)
      ;
    seg.resize(2 * sz);
  }

  void up(ll x, ll v) {
    x += sz;
    seg[x] += v;
    for (x /= 2; x > 0; x /= 2)
      seg[x] = seg[x * 2] + seg[x * 2 + 1];
  }

  ll q(ll l, ll r) {
    l += sz, r += sz;
    ll ans = 0;
    while (l <= r) {
      if ((l & 1))
        ans += seg[l++];
      if (!(r & 1))
        ans += seg[r--];
      l /= 2;
      r /= 2;
    }
    return ans;
  }
};

int main() {
  ll n, m;
  cin >> n >> m;
  vll h(n);
  ll sz = 1e6+1;
  vll upd(sz + 1);
  for (ll i = 0; i < n; ++i) {
    cin >> h[i];
    if (i != 0) {
      ll a = h[i - 1], b = h[i];
      if (a > b)
        swap(a, b);
      upd[a]++;
      upd[b]--;
    }
  }
  vll pre(sz + 1);
  pre[0] = upd[0];
  for (ll i = 1; i < sz; ++i)
    pre[i] = pre[i - 1] + upd[i];

  while (m--) {
    ll t, y;
    cin >> t >> y;
    cout << pre[y] << "\n";
  }
}

• Subtask 1: 0 / 22
• Subtask 2: 0 / 27
• Subtask 3: 0 / 51