Submission #877611

#	Time	Username	Problem	Language	Result	Execution time	Memory
877611		heeheeheehaaw	Money (IZhO17_money)	C++17	0 / 100	0 ms	348 KiB

money

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#include <bits/stdc++.h>

using namespace std;

int n, aib[1000005];
int v[1000005];

void update(int poz, int val)
{
    for(int i = poz; i <= n; i += (i & (-i)))
        aib[i] += val;
    return;
}

int query(int poz)
{
    int sum = 0;
    for(int i = poz; i >= 1; i -= (i & (-i)))
        sum += aib[i];
    return sum;
}

int main()
{
    map<int, int> m1, m2;
    cin>>n;
    for(int i =1 ; i <= n; i++)
        cin>>v[i], m1[v[i]] = 1;
    /*int cnt = 0;
    for(auto it : m1)
        m2[it.first] = ++cnt;
    for(int i = 1; i <= n; i++)
        [i] = m*/
    
    int rez = 1, prev = 0;
    for(int i = 1; i <= n; i++)
    {
        if(v[i] < v[i - 1] || query(v[i]) - query(v[i - 1]) != 0)
            rez++;
        prev = v[i];
        update(v[i], 1);
    }
    
    cout<<rez;

    return 0;
}

Compilation message (stderr)

money.cpp: In function 'int main()':
money.cpp:43:18: warning: variable 'prev' set but not used [-Wunused-but-set-variable]
   43 |     int rez = 1, prev = 0;
      |                  ^~~~

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