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답안 #707055

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
707055 2023-03-08T11:06:56 Z Chal1shkan Izbori (COCI22_izbori) C++14
25 / 110
 394 ms 26288 KB 
# include <bits/stdc++.h>
 
# define pb push_back
# define ff first
# define ss second
# define nl "\n"
# define sz(x) ((int)(x).size())
# define deb(x) cerr << #x  << " = " << x << endl; 
# define pll pair <ll, ll>
 
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
 
const ll maxn = 2e5 + 1e4 + 25;
const ll inf = 2e9 + 0;
const ll mod = 1e9 + 123;
const ll dx[] = {-1, 1, 0, 0};
const ll dy[] = {0, 0, -1, 1};
 
using namespace std;
 
ll n, a[maxn];
ll b[maxn];
vector <ll> pos[maxn];
 
struct node
{
	ll sum1, sum2, upd, sz;	
} t[maxn * 4];
 
ll cnt (ll x)
{
	return x * (x + 1) / 2;
}

void push (ll v, ll tl, ll tr)
{
	if (t[v].upd && tl != tr)
	{
		ll tm = (tl + tr) >> 1;
		t[v * 2].sum1 += t[v].upd * (tm - tl + 1);
		t[v * 2 + 1].sum1 += t[v].upd * (tr - tm);
		
		t[v * 2].sum2 += t[v].upd * cnt(tm - tl + 1);
		t[v * 2 + 1].sum2 += t[v].upd * cnt(tr - tm);
		
		t[v * 2].upd += t[v].upd;
		t[v * 2 + 1].upd += t[v].upd;
		t[v].upd = 0;
	}
}
 
void update (ll l, ll r, ll x, ll v = 1, ll tl = 0, ll tr = n + n)
{
	push(v, tl, tr);
	if (tr < l || r < tl) return;
	if (l <= tl && tr <= r)
	{
		t[v].sum1 += x * (tr - tl + 1);
		t[v].sum2 += x * cnt(tr - tl + 1);
		t[v].upd += x;
		return;
	}
	ll tm = (tl + tr) >> 1;
	update(l, r, x, v * 2, tl, tm);
	update(l, r, x, v * 2 + 1, tm + 1, tr);
	t[v].sum1 = t[v * 2].sum1 + t[v * 2 + 1].sum1;
	t[v].sum2 = t[v * 2].sum1 * (tr - tm) + t[v * 2].sum2 + t[v * 2 + 1].sum2;
}
 
node get (ll l, ll r, ll v = 1, ll tl = 0, ll tr = n + n)
{
	push(v, tl, tr);
	if (tr < l || r < tl) return {0, 0, 0, 0};
	if (l <= tl && tr <= r) return {t[v].sum1, t[v].sum2, t[v].upd, tr - tl + 1};
	ll tm = (tl + tr) >> 1;
	node x = get(l, r, v * 2, tl, tm);
	node y = get(l, r, v * 2 + 1, tm + 1, tr);
	return {x.sum1 + y.sum1, x.sum1 * y.sz + x.sum2 + y.sum2, x.upd, x.sz + y.sz};
}
 
void out (ll v = 1, ll tl = 0, ll tr = n + n)
{
	push(v, tl, tr);
	cout << tl << ' ' << tr << ' ' << t[v].sum2 << nl;
	if (tl == tr)
	{
		return;
	}
	ll tm = (tl + tr) >> 1;
	out(v * 2, tl, tm);
	out(v * 2 + 1, tm + 1, tr);
}

ll query (ll l, ll r)
{
	ll x = get(0, l - 1).sum1;
	ll y = get(l, r - 1).sum2;
	return x * (r - l + 1) + y;
}

void clear (ll v = 1, ll tl = 0, ll tr = n + n)
{
	push(v, tl, tr);
	t[v].sum1 = t[v].sum2 = t[v].upd = 0;
	if (tl == tr)
	{
		return;
	}
	ll tm = (tl + tr) >> 1;
	clear(v * 2, tl, tm);
	clear(v * 2 + 1, tm + 1, tr);
}

void ma1n (/* SABR */)
{
	cin >> n;
	for (ll i = 1; i <= n; ++i)
	{
		cin >> a[i];
		b[i] = a[i];	
	}	
	sort(b + 1, b + 1 + n);
	set <ll> st;
	for (ll i = 1; i <= n; ++i)
	{
		a[i] = lower_bound(b + 1, b + 1 + n, a[i]) - b;
		st.insert(a[i]);
		pos[a[i]].pb(i);
	}
	ll ans = 0;
	for (ll x : st)
	{
		pos[x].pb(0);
		pos[x].pb(n + 1);
		sort(pos[x].begin(), pos[x].end());
		vector <pll> clr;
		ll cur = n;
		update(n, n, 1);
		clr.pb({n, n});
		for (ll i = 1; i < sz(pos[x]); ++i)
		{
			ll siz = pos[x][i] - pos[x][i - 1] - 1; 
			ans += query(cur - siz, cur - 1);
			update(cur - siz, cur - 1, 1);
			clr.pb({cur - siz, cur - 1});
			if (pos[x][i] != n + 1)
			{
				ans += get(0, cur - siz).sum1;
				update(cur - siz + 1, cur - siz + 1, 1);
				clr.pb({cur - siz + 1, cur - siz + 1});
			}
			cur = cur - siz + 1;	
		}
		for (pll p : clr)
		{
			update(p.ff, p.ss, -1);
		}
	}
	cout << ans;
}
 
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);
//  freopen("spainting.in", "r", stdin);
//  freopen("spainting.out", "w", stdout);
    int ttt = 1;
//  cin >> ttt;
    for (int test = 1; test <= ttt; ++test)
    {
//      cout << "Case " << test << ":" << ' ';
        ma1n();
    }
    return 0;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 5204 KB Output is correct
2 Correct 3 ms 5204 KB Output is correct
3 Correct 3 ms 5204 KB Output is correct
4 Correct 3 ms 5332 KB Output is correct
5 Correct 3 ms 5204 KB Output is correct
6 Correct 3 ms 5308 KB Output is correct

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 5204 KB Output is correct
2 Correct 3 ms 5204 KB Output is correct
3 Correct 3 ms 5204 KB Output is correct
4 Correct 3 ms 5332 KB Output is correct
5 Correct 3 ms 5204 KB Output is correct
6 Correct 3 ms 5308 KB Output is correct
7 Correct 9 ms 5460 KB Output is correct
8 Correct 4 ms 5204 KB Output is correct
9 Correct 7 ms 5460 KB Output is correct
10 Correct 6 ms 5460 KB Output is correct
11 Correct 6 ms 5460 KB Output is correct
12 Correct 6 ms 5460 KB Output is correct
13 Correct 6 ms 5460 KB Output is correct
14 Correct 6 ms 5460 KB Output is correct
15 Correct 6 ms 5460 KB Output is correct
16 Correct 10 ms 5500 KB Output is correct
17 Correct 8 ms 5600 KB Output is correct

Subtask #3
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 247 ms 14904 KB Output is correct
2 Correct 343 ms 16408 KB Output is correct
3 Correct 181 ms 11288 KB Output is correct
4 Correct 344 ms 16700 KB Output is correct
5 Correct 350 ms 16864 KB Output is correct
6 Correct 391 ms 17460 KB Output is correct
7 Correct 375 ms 17280 KB Output is correct
8 Correct 390 ms 17528 KB Output is correct
9 Correct 372 ms 17268 KB Output is correct
10 Correct 384 ms 17364 KB Output is correct
11 Incorrect 394 ms 26288 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #4
0 / 70.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 5204 KB Output is correct
2 Correct 3 ms 5204 KB Output is correct
3 Correct 3 ms 5204 KB Output is correct
4 Correct 3 ms 5332 KB Output is correct
5 Correct 3 ms 5204 KB Output is correct
6 Correct 3 ms 5308 KB Output is correct
7 Correct 9 ms 5460 KB Output is correct
8 Correct 4 ms 5204 KB Output is correct
9 Correct 7 ms 5460 KB Output is correct
10 Correct 6 ms 5460 KB Output is correct
11 Correct 6 ms 5460 KB Output is correct
12 Correct 6 ms 5460 KB Output is correct
13 Correct 6 ms 5460 KB Output is correct
14 Correct 6 ms 5460 KB Output is correct
15 Correct 6 ms 5460 KB Output is correct
16 Correct 10 ms 5500 KB Output is correct
17 Correct 8 ms 5600 KB Output is correct
18 Correct 247 ms 14904 KB Output is correct
19 Correct 343 ms 16408 KB Output is correct
20 Correct 181 ms 11288 KB Output is correct
21 Correct 344 ms 16700 KB Output is correct
22 Correct 350 ms 16864 KB Output is correct
23 Correct 391 ms 17460 KB Output is correct
24 Correct 375 ms 17280 KB Output is correct
25 Correct 390 ms 17528 KB Output is correct
26 Correct 372 ms 17268 KB Output is correct
27 Correct 384 ms 17364 KB Output is correct
28 Incorrect 394 ms 26288 KB Output isn't correct
29 Halted 0 ms 0 KB -