oj.uz

답안 #521930

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
521930 2022-02-03T13:14:39 Z NaimSS Worst Reporter 3 (JOI18_worst_reporter3) C++14
100 / 100
 496 ms 9168 KB 
#include <bits/stdc++.h>
#define ld long double
#define endl "\n"
#define fastio ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define pb push_back
#define mp(a,b) make_pair(a,b)
#define ms(v,x) memset(v,x,sizeof(v))
#define all(v) v.begin(),v.end()
#define ff first
#define ss second
#define rep(i, a, b) for(int i = a; i < (b); ++i)
#define per(i, a, b) for(int i = b-1; i>=a ; i--)
#define trav(a, x) for(auto& a : x)
#define allin(a , x) for(auto a : x)
#define Unique(v) sort(all(v));v.erase(unique(all(v)),v.end());
#define sz(v) ((int)v.size())
using namespace std;
typedef vector<int> vi;
#define y1 abacaba
//#define left oooooopss
#define db(x) cerr << #x <<" == "<<x << endl;
#define db2(x,y) cerr<<#x <<" == "<<x<<", "<<#y<<" == "<<y<<endl;
#define db3(x,y,z) cerr << #x<<" == "<<x<<", "<<#y<<" == "<<y<<", "<<#z<<" == "<<z<<endl;
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef vector<ll> vl;
std::mt19937 rng((int) std::chrono::steady_clock::now().time_since_epoch().count());
ll cdiv(ll a, ll b) { return a/b+((a^b)>0&&a%b); } // divide a by b rounded up
ll fdiv(ll a, ll b) { return a/b-((a^b)<0&&a%b); } // divide a by b rounded down
inline ll mod(ll n, ll m ){ ll ret = n%m; if(ret < 0) ret += m; return ret; }
ll gcd(ll a, ll b){return (b == 0LL ? a : gcd(b, a%b));}
ll exp(ll b,ll e,ll m){
  b%=m;
  ll ans = 1;
  for (; e; b = b * b % m, e /= 2)
      if (e & 1) ans = ans * b % m;
  return ans;
}

// debug:
void dbg_out() { cerr << endl; }
template<typename Head, typename... Tail> void dbg_out(Head H, Tail... T){ 
  cerr << ' ' << H; 
  dbg_out(T...); 
}
#ifdef LOCAL
#define dbg(...) cerr<<"(" << #__VA_ARGS__<<"):" , dbg_out(__VA_ARGS__) , cerr << endl
#else
#define dbg(...) 42
#endif
//



int32_t main(){
  fastio;
  int n,q;
  cin >> n >> q;
  vector<ll> d(n+1);
  d[0] = 0;
  rep(i,1,n+1){
    cin >> d[i];
    if(i>1){
      ll k =(d[i] + d[i-1] - 1)/(d[i-1]);
      d[i] = d[i-1] * k;
    }
  }
  sort(all(d));
  auto f = [&](ll t,ll x){
    ll l = 1,r=n;
    for(int i=1;i<=n;i++){
      int m = i;
      ll D = d[m];
      ll pos = (t/D) * D - m;
    }
    ll ans = n+1;
    while(l<=r){
      ll m=(l+r)/2;
      ll D = d[m];
      ll pos = (t/D) * D - m;
      if(pos <= x){
        ans = m;
        r=m-1;
      }else l=m+1;
    }
    return n-ans+1;
  };
  while(q--){
    ll t,l,r;
    cin >> t >> l >> r;
    cout << f(t,r) - f(t,l-1) + (t<=r && t>=l) << endl;
  }

  // math -> gcd it all
  // Did u check N=1? Did you switch N,M?
}

Compilation message

worst_reporter3.cpp: In lambda function:
worst_reporter3.cpp:75:10: warning: unused variable 'pos' [-Wunused-variable]
   75 |       ll pos = (t/D) * D - m;
      |          ^~~

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 496 ms 9168 KB Output is correct
2 Correct 492 ms 9156 KB Output is correct
3 Correct 482 ms 9016 KB Output is correct
4 Correct 476 ms 9104 KB Output is correct
5 Correct 470 ms 9048 KB Output is correct
6 Correct 481 ms 9076 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 324 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 316 KB Output is correct

Subtask #3
81.0 / 81.0

# 결과 실행 시간 메모리 Grader output
1 Correct 496 ms 9168 KB Output is correct
2 Correct 492 ms 9156 KB Output is correct
3 Correct 482 ms 9016 KB Output is correct
4 Correct 476 ms 9104 KB Output is correct
5 Correct 470 ms 9048 KB Output is correct
6 Correct 481 ms 9076 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 324 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 316 KB Output is correct
13 Correct 303 ms 6976 KB Output is correct
14 Correct 282 ms 5188 KB Output is correct
15 Correct 285 ms 7168 KB Output is correct
16 Correct 294 ms 7104 KB Output is correct
17 Correct 375 ms 6652 KB Output is correct
18 Correct 368 ms 6664 KB Output is correct
19 Correct 363 ms 6684 KB Output is correct
20 Correct 358 ms 6620 KB Output is correct
21 Correct 373 ms 6832 KB Output is correct
22 Correct 358 ms 6592 KB Output is correct
23 Correct 357 ms 6704 KB Output is correct
24 Correct 359 ms 6736 KB Output is correct
25 Correct 496 ms 9032 KB Output is correct
26 Correct 494 ms 9024 KB Output is correct
27 Correct 396 ms 7100 KB Output is correct
28 Correct 405 ms 6972 KB Output is correct
29 Correct 399 ms 7024 KB Output is correct
30 Correct 412 ms 7092 KB Output is correct
31 Correct 400 ms 7028 KB Output is correct
32 Correct 394 ms 8404 KB Output is correct
33 Correct 1 ms 312 KB Output is correct