/ SeriousOJ /

Record Detail

Accepted


  
# Status Time Cost Memory Cost
#1 Accepted 1ms 328.0 KiB
#2 Accepted 1ms 540.0 KiB
#3 Accepted 1ms 544.0 KiB
#4 Accepted 1ms 772.0 KiB
#5 Accepted 1ms 772.0 KiB
#6 Accepted 1ms 540.0 KiB
#7 Accepted 1ms 540.0 KiB
#8 Accepted 1ms 332.0 KiB
#9 Accepted 1ms 540.0 KiB
#10 Accepted 1ms 540.0 KiB
#11 Accepted 1ms 540.0 KiB
#12 Accepted 1ms 540.0 KiB
#13 Accepted 1ms 540.0 KiB
#14 Accepted 1ms 796.0 KiB
#15 Accepted 1ms 540.0 KiB
#16 Accepted 1ms 540.0 KiB
#17 Accepted 2ms 540.0 KiB
#18 Accepted 1ms 772.0 KiB
#19 Accepted 1ms 540.0 KiB
#20 Accepted 1ms 540.0 KiB
#21 Accepted 1ms 540.0 KiB
#22 Accepted 1ms 540.0 KiB
#23 Accepted 1ms 376.0 KiB
#24 Accepted 1ms 544.0 KiB
#25 Accepted 1ms 540.0 KiB
#26 Accepted 1ms 360.0 KiB
#27 Accepted 1ms 772.0 KiB
#28 Accepted 1ms 540.0 KiB
#29 Accepted 1ms 776.0 KiB
#30 Accepted 1ms 540.0 KiB
#31 Accepted 1ms 332.0 KiB
#32 Accepted 1ms 328.0 KiB
#33 Accepted 1ms 540.0 KiB
#34 Accepted 1ms 540.0 KiB
#35 Accepted 1ms 560.0 KiB
#36 Accepted 1ms 344.0 KiB
#37 Accepted 1ms 540.0 KiB
#38 Accepted 1ms 332.0 KiB
#39 Accepted 1ms 540.0 KiB
#40 Accepted 1ms 772.0 KiB
#41 Accepted 2ms 540.0 KiB
#42 Accepted 2ms 588.0 KiB
#43 Accepted 2ms 820.0 KiB
#44 Accepted 2ms 540.0 KiB
#45 Accepted 2ms 772.0 KiB
#46 Accepted 2ms 540.0 KiB
#47 Accepted 2ms 584.0 KiB
#48 Accepted 2ms 540.0 KiB
#49 Accepted 2ms 540.0 KiB
#50 Accepted 2ms 540.0 KiB
#51 Accepted 2ms 588.0 KiB
#52 Accepted 2ms 796.0 KiB
#53 Accepted 2ms 540.0 KiB
#54 Accepted 2ms 540.0 KiB
#55 Accepted 2ms 588.0 KiB
#56 Accepted 2ms 540.0 KiB
#57 Accepted 2ms 540.0 KiB
#58 Accepted 2ms 796.0 KiB
#59 Accepted 2ms 540.0 KiB
#60 Accepted 2ms 592.0 KiB
#61 Accepted 6ms 1.027 MiB
#62 Accepted 5ms 1.027 MiB
#63 Accepted 5ms 1.02 MiB
#64 Accepted 5ms 824.0 KiB
#65 Accepted 5ms 1016.0 KiB
#66 Accepted 5ms 1.027 MiB
#67 Accepted 4ms 1.027 MiB
#68 Accepted 5ms 1.02 MiB
#69 Accepted 5ms 1.027 MiB
#70 Accepted 5ms 1.008 MiB
#71 Accepted 10ms 1.266 MiB
#72 Accepted 8ms 1.344 MiB
#73 Accepted 8ms 1.27 MiB
#74 Accepted 8ms 1.316 MiB
#75 Accepted 8ms 1.52 MiB
#76 Accepted 9ms 1.191 MiB
#77 Accepted 7ms 1.277 MiB
#78 Accepted 8ms 1.188 MiB
#79 Accepted 8ms 1.383 MiB
#80 Accepted 8ms 1.336 MiB
#81 Accepted 12ms 1.57 MiB
#82 Accepted 10ms 1.559 MiB
#83 Accepted 10ms 1.57 MiB
#84 Accepted 10ms 1.562 MiB
#85 Accepted 10ms 1.52 MiB
#86 Accepted 11ms 1.527 MiB
#87 Accepted 9ms 1.562 MiB
#88 Accepted 10ms 1.457 MiB
#89 Accepted 10ms 1.52 MiB
#90 Accepted 10ms 1.516 MiB
#91 Accepted 151ms 8.82 MiB
#92 Accepted 107ms 8.855 MiB
#93 Accepted 109ms 8.961 MiB
#94 Accepted 110ms 8.855 MiB
#95 Accepted 111ms 8.961 MiB
#96 Accepted 128ms 8.855 MiB
#97 Accepted 84ms 8.77 MiB
#98 Accepted 110ms 8.77 MiB
#99 Accepted 103ms 8.77 MiB
#100 Accepted 108ms 8.773 MiB

Code

#include "bits/stdc++.h"
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
using ll = long long;
#define int ll
using pii = pair<int, int>;
template<typename T> using minHeap = priority_queue<T, vector<T>, greater<T>>;
#define all(x) x.begin(),x.end()
#define V vector
#define size(v) (int(v.size()))
const ll mxn= 2e5+3, inf= 1.5e18,mod= 1e9+7;//998244353;
// iwkms
//PBDS start
template <class T>
using order_set = tree<T, null_type, less_equal<T>, rb_tree_tag, tree_order_statistics_node_update>;
template <class K,class V>
using order_map = tree<K, V, less<K>, rb_tree_tag, tree_order_statistics_node_update>;
//less<T> for uniqe elements ,, less_equal<T> for duplicate
// s.order_of_key(x)=# of elements < x , s.find_by_order() = k-th largest element, 0 based
void solve() {
    int n;cin>>n;
    V<int> a(n),l(n),r(n);
    for (int& i:a)cin>>i;
    order_set<int> s;
    for (int i=0;i<n;i++) {
        l[i] =  s.order_of_key( a[i]+ 1) ;
        s.insert(a[i]);
    }
    s.clear();
    for (int i=n-1;i>=0;i--) {
        r[i] = size(s) - s.order_of_key(a[i]) ;
        s.insert(a[i]);
    }
    int cnt =0;
    for (int i=0;i<n;i++) {
        if (l[i] >= a[i] or a[i] <= r[i]) ++cnt;
    }
    // for (int& i:l)cout<<i<<' ';cout<<"\n";
    // for (int& i:r)cout<<i<<' ';cout<<"\n";
    cout<<cnt;
}
int32_t main() 
{
    cin.tie(0)->sync_with_stdio(0);
    // int t=1;cin>>t;while(t--)
        solve();
    return 0;
}

Information

Submit By
Type
Submission
Problem
P1184 The Curious Kid and the Number Game
Contest
Brain Booster #9
Language
C++17 (G++ 13.2.0)
Submit At
2025-04-06 16:03:33
Judged At
2025-04-06 16:03:33
Judged By
Score
100
Total Time
151ms
Peak Memory
8.961 MiB