Submission #364749

#	Time	Username	Problem	Language	Result	Execution time	Memory
364749		nicolaalexandra	Money (IZhO17_money)	C++14	100 / 100	398 ms	15084 KiB

money

#include <bits/stdc++.h>
#define DIM 1000010
using namespace std;

int aib[DIM],dp[DIM],v[DIM];
int n,i,maxi,val;

void update (int p, int val){
    for (;p<=maxi;p+=(p&-p))
        aib[p] += val;
}

int query (int p){
    int sol = 0;
    for (;p>0;p-=(p&-p))
        sol += aib[p];
    return sol;
}

int main (){

    //ifstream cin ("date.in");
    //ofstream cout ("date.out");

    cin>>n;
    for (i=1;i<=n;i++){
        cin>>v[i];
        maxi = max (maxi,v[i]);
    }

    int sol = 0;
    for (i=1;i<=n;i++){
        int j = i;
        while (j < n && v[j+1] >= v[j] && query(v[j+1]-1) - query(v[i]) <= 0)
            j++;

        sol++;

        /// acum fac update pt ca termin cu secv asta
        for (int poz=i;poz<=j;poz++)
            update (v[poz],1);
        i = j;
    }


    cout<<sol;

    return 0;
}

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