Submission #895308

#	Time	Username	Problem	Language	Result	Execution time	Memory
895308		raul2008487	Money (IZhO17_money)	C++17	0 / 100	2 ms	8284 KiB

money

#include <bits/stdc++.h>
#define ll long long
#define pll pair<ll,ll>
#define pb push_back
#define eb emplace_back
#define vl vector<ll>
#define fi first
#define se second
#define in insert
#define mpr make_pair
#define lg(x) __lg(x)
#define bpc(x) __builtin_popcount(x)
#define all(v) v.begin(), v.end()
#define endl "\n"
using namespace std;
const int mod = 998244353;
struct BIT{
    ll sz;
    vl ft;
    void init(){
        sz = 1e6+10;
        ft.resize(sz+6);
    }
    void add(ll idx, ll val){
        while(idx <= sz){
            ft[idx] += val;
            idx += (idx & (-idx));
        }
    }
    ll get(ll idx){
        ll ret = 0;
        while(idx > 0){
            ret += ft[idx];
            idx -= (idx & (-idx));
        }
        return ret;
    }
    ll ask(ll l, ll r){
        return get(r) - get(l-1);
    }
};
void solve()
{
    ll n, i, j, ans = 1;
    cin>>n;
    vl v(n);
    BIT ft;
    ft.init();
    for(i=0;i<n;i++){
        cin>>v[i];
    }
    ft.add(v[0], 1);
    j = 1;
    while(j < n && v[j] >= v[j-1]){
            ft.add(v[j], 1);
            j++;
    }
    if(j == n){
        cout << 1 << '\n';
        return ;
    }
    ans++;
    ll bar = ft.get(v[j]);
    for(i = j + 1; i<n; i++){
        if(ft.get(v[i]) != bar || v[i] < v[i-1]){
            ans++;
            for(j; j<i; j++){
                ft.add(v[j], 1);
            }
            bar = ft.get(v[j]);
        }
    }
    cout << ans << endl;
}
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    //precomp();
    ll tst=1;
    //cin>>tst;
    while(tst--){
            solve();
    }
}
/*
ok.
*/

Compilation message (stderr)

money.cpp: In function 'void solve()':
money.cpp:67:17: warning: statement has no effect [-Wunused-value]
   67 |             for(j; j<i; j++){
      |                 ^

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