Submission #786954

#	Time	Username	Problem	Language	Result	Execution time	Memory
786954		makanhulia	Exhibition (JOI19_ho_t2)	C++17	0 / 100	1 ms	340 KiB

joi2019_ho_t2

/* Quick Note :
 * Jangan Mikir Lama - lama, sampahin dulu aja kalo OI
 * Always Try to reset
*/
#include <bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
#define pb push_back
#define debug(val) cerr << "The value of " << #val << " is = " << val << '\n';
typedef long double ld;
typedef long long ll;
typedef unsigned long long ull;
const ld PI = 4*atan((ld)1);
const ll mod = 1e9 + 7;
const ll inf = 922337203685477;
const ll nax = 1e5 + 5;

ll n, m;
pair<ll,ll> a[nax];
ll frame[nax];

bool cmp(pair<ll,ll> xx, pair<ll,ll> yy){
  return xx.ss < yy.ss;
}

ll cek(ll val){
  ll idx = m - val + 1;
  for(ll i = 1; i <= n; i++){
    if(idx > m){
      break;
    }
    else{
      if(a[i].ff <= frame[idx]){
        idx++;
      }
    }
  }
  return idx > m;
}

int main(){ 
    ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
    //freopen("test.in", "r", stdin);
    //freopen("test.out", "w", stdout);
    
    cin >> n >> m;
    for(ll i = 1; i <= n; i++){
    cin >> a[i].ff >> a[i].ss;
  }
  for(ll i = 1; i <= m; i++) cin >> frame[i];
  sort(frame + 1, frame + 1 + m);
  sort(a + 1, a + 1 + n, cmp);
  ll l = 0, r = m, ret = 0;
  while(l <= r){
    ll mid = (l + r) / 2;
    if(cek(mid)){
      ret = mid;
      l = mid + 1;
    }
    else r = mid - 1;
  }
  cout << ret << '\n';
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 40
• Subtask 3: 0 / 50