Submission #1184135

#	Time	Username	Problem	Language	Result	Execution time	Memory
1184135		al95ireyiz	Money (IZhO17_money)	C++20	0 / 100	10 ms	16104 KiB

money

//*** Bismillah ***//
// It's the evening of another day. And the end of mine...
#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
#if !defined(ONLINE_JUDGE) and !defined(EVAL)
#include "template/debug.h"
#else
#define d(x...)
#endif
#define ll long long
const ll INF = 1e9;
const ll INFL = 1e18;
const ll MOD = 1e9 + 7;
const ll maxn = 1e6 + 5;
ll n,m,k=0;
vector<ll> fw(maxn), fw2(maxn);
ll a[maxn];
void upd(ll i, ll val){
    for(;i<maxn;i+=i&-i) fw[i] += val;
}
ll get(ll i){
    ll cv=0;
    for(;i>0;i-=i&-i) cv += fw2[i];
    return cv;
}
void _(){
    cin>>n;
    for(ll i=1;i<=n;i++) cin>>a[i];
    // increasing olmalidi
    // a[l] ve a[r] arasinda olan eded olmamalidi evvelki segmentlerde
    ll cv = 1, l = 1;
    upd(a[1], 1);
    for(ll i=2;i<=n;i++){
        if((a[i-1] > a[i]) or (get(a[l]+1) != get(a[i]-1))){
            l = i;
            fw2 = fw;
            upd(a[i], 1);
            cv ++;
        }
        else upd(a[i], 1);
    }
    cout<<cv<<'\n';
}
signed main(){
    auto testcaseruntime=clock();
    cin.tie(0)->sync_with_stdio(0);
    ll t=1;
    // cin>>t;
    while(t--){
        _();
    }
    cerr<<"\n\033[1;31mTime: \033[1;30m"
        <<(double)(clock()-testcaseruntime)/1000000<<"\033[1;32m seconds\n";
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 16
• Subtask 3: 0 / 20
• Subtask 4: 0 / 55