oj.uz

Submission #950651

# Submission time Handle Problem Language Result Execution time Memory
950651 2024-03-20T14:23:15 Z binminh01 Izbori (COCI22_izbori) C++17
110 / 110
 580 ms 7612 KB 
#pragma GCC optimize("Ofast")
#pragma GCC target("sse4")
 
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define ull unsigned long long
#define int128 __int128_t
#define double long double
#define gcd __gcd
#define lcm(a, b) ((a)/gcd(a, b)*(b))
#define sqrt sqrtl
#define log2 log2l
#define log10 log10l
#define floor floorl
#define to_string str
#define yes cout << "YES"
#define no cout << "NO"
#define trav(i, a) for (auto &i: (a))
#define all(a) (a).begin(), (a).end()
#define rall(a) (a).rbegin(), (a).rend()
#define sz(a) (int)a.size()
#define Max(a) *max_element(all(a))
#define Min(a) *min_element(all(a))
#define Find(a, n) (find(all(a), n) - a.begin())
#define Count(a, n) count(all(a), n)
#define Upper(a, n) (upper_bound(all(a), n) - a.begin())
#define Lower(a, n) (lower_bound(all(a), n) - a.begin())
#define next_perm(a) next_permutation(all(a))
#define prev_perm(a) prev_permutation(all(a))
#define sorted(a) is_sorted(all(a))
#define sum(a) accumulate(all(a), 0)
#define sumll(a) accumulate(all(a), 0ll)
#define Sort(a) sort(all(a))
#define Reverse(a) reverse(all(a))
#define Unique(a) Sort(a), (a).resize(unique(all(a)) - a.begin())
#define pb push_back
#define eb emplace_back
#define open(s) freopen(s, "r", stdin)
#define write(s) freopen(s, "w", stdout)
#define fileopen(s) open((string(s) + ".inp").c_str()), write((string(s) + ".out").c_str());
#define For(i, a, b) for (auto i = (a); i < (b); i++)
#define Fore(i, a, b) for (auto i = (a); i >= (b); i--)
#define FOR(i, a, b) for (auto i = (a); i <= (b); i++)
#define ret(s) return void(cout << s);

const int mod = 1e9 + 7, mod2 = 998244353;
const double PI = acos(-1);
const ull npos = string::npos;
const int dx[] = {0, 0, -1, 1}, dy[] = {-1, 1, 0, 0};
using pii = pair<int, int>;
using pll = pair<ll, ll>;
mt19937 mt(chrono::system_clock::now().time_since_epoch().count());
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<ll> vll;
typedef vector<vll> vvll;
typedef vector<double> vdo;
typedef vector<vdo> vvdo;
typedef vector<string> vs;
typedef vector<pii> vpair;
typedef vector<vpair> vvpair;
typedef vector<bool> vb;
typedef vector<vb> vvb;
typedef vector<char> vc;
typedef vector<vc> vvc;
typedef priority_queue<int> pq;
typedef priority_queue<int, vi, greater<int>> pqg;
typedef priority_queue<ll> pqll;
typedef priority_queue<ll, vll, greater<ll>> pqgll;
 
ll power(ll a, ll b, int m){ll x = 1;a%=m;while (b) {if (b & 1) x = x*a % m;a = a*a % m;b>>=1;}return x;}
ll power(ll a, ll b){ll x = 1;while (b) {if (b & 1) x = x*a;a = a*a;b>>=1;}return x;}
ll ceil(ll a, ll b){return (a + b - 1)/b;}
ll to_int(const string &s){ll x = 0; for (int i = (s[0] == '-'); i < sz(s); i++) x = x*10 + s[i] - '0';return x*(s[0] == '-' ? -1: 1);}
bool is_prime(ll n) {if (n < 2) return 0;if (n < 4) return 1;if (n % 2 == 0 || n % 3 == 0) return 0;for (ll i = 5; i*i <= n; i+=6) {if(n % i == 0 || n % (i + 2) == 0) return 0;}return 1;}
bool is_square(ll n) {ll k = sqrt(n); return k*k == n;}
ll factorial(int n) {ll x = 1;for (int i = 2; i <= n; i++) x*=i;return x;}
ll factorial(int n, int m) {ll x = 1;for (ll i = 2; i <= n; i++) x = x*i % m;return x;}
bool is_power(ll n, ll k) {while (n % k == 0) n/=k;return n == 1ll;}
string str(ll n) {if (n == 0) return "0"; string s = ""; bool c = 0; if (n < 0) c = 1, n = -n; while (n) {s+=n % 10 + '0'; n/=10;} if (c) s+='-'; Reverse(s); return s;}
string repeat(const string &s, int n) {if (n < 0) return ""; string x = ""; while (n--) x+=s; return x;}
string bin(ll n) {string s = ""; while (n) {s+=(n & 1) + '0'; n>>=1;} Reverse(s); return s;}
void sieve(vector<bool> &a) {int n = a.size(); a[0] = a[1] = 0; for (int i = 4; i < n; i+=2) a[i] = 0; for (int i = 3; i*i < n; i+=2) {if (a[i]) {for (int j = i*i; j < n; j+=(i << 1)) a[j] = 0;}}}
void sieve(vector<int> &a) {int n = a.size(); for (int i = 2; i < n; i+=2) a[i] = 2; for (int i = 3; i*i < n; i+=2) {if (!a[i]) {for (int j = i; j < n; j+=(i << 1)) a[j] = i;}} for (int i = 3; i < n; i+=2) {if (!a[i]) a[i] = i;}}
void sieve(int a[], int n) {for (int i = 2; i < n; i+=2) a[i] = 2; for (int i = 3; i*i < n; i+=2) {if (!a[i]) {for (int j = i; j < n; j+=(i << 1)) a[j] = i;}} for (int i = 3; i < n; i+=2) {if (!a[i]) a[i] = i;}}
vector<pii> factorize(int n) {vector<pii> a; for (int i = 2; i*i <= n; i++) {if (n % i == 0) {int k = 0; while (n % i == 0) k++, n/=i; a.emplace_back(i, k);}} if (n > 1) a.emplace_back(n, 1); return a;}
int rand(int l, int r) {return uniform_int_distribution<int>(l, r)(mt);}
int Log2(int n) {return 31 - __builtin_clz(n);}
template<class T> void compress(vector<T> &a) {vector<T> b; for (T &i: a) b.push_back(i); sort(all(b)); b.resize(unique(all(b)) - b.begin()); for (T &i: a) i = lower_bound(all(b), i) - b.begin() + 1;}

template<class A, class B> istream& operator>>(istream& in, pair<A, B> &p) {in >> p.first >> p.second; return in;}
template<class A, class B> ostream& operator<<(ostream& out, const pair<A, B> &p) {out << p.first << ' ' << p.second; return out;}
template<class T> istream& operator>>(istream& in, vector<T> &a) {for (auto &i: a) in >> i; return in;}
template<class T> ostream& operator<<(ostream& out, const vector<T> &a) {for (auto &i: a) out << i << ' '; return out;}
template<class T> istream& operator>>(istream& in, vector<vector<T>> &a) {for (auto &i: a) in >> i; return in;}
template<class T> ostream& operator<<(ostream& out, const vector<vector<T>> &a) {for (auto &i: a) out << i << '\n'; return out;}
template<class T> istream& operator>>(istream& in, deque<T> &a) {for (auto &i: a) in >> i; return in;}
template<class T> ostream& operator<<(ostream& out, const deque<T> &a) {for (auto &i: a) out << i << ' '; return out;}
// istream& operator>>(istream& in, __int128_t &a) {string s; in >> s; a = 0; for (auto &i: s) a = a*10 + (i - '0'); return in;}
// ostream& operator<<(ostream& out, __int128_t a) {string s = ""; while (a > 0) {s+=(int)a % 10 + '0'; a/=10;} Reverse(s); out << s; return out;}

const int N = 2e5 + 3;
int c[N], f[N], v[2*N], p[2*N];
int main() {
    ios_base::sync_with_stdio(0); cin.tie(NULL); cout.tie(NULL);
    cout << fixed << setprecision(10);
    int n; cin >> n;
    vi a(n); cin >> a;
    compress(a);
    trav(i,a) c[i]++;
    int sz = sqrt(n);
    ll x = 0;
    For(i,0,n){
        int k = min(i + 2*sz - 1, n - 1);
        int t = 0;
        FOR(j,i,k){
            if (c[a[j]] <= sz) {
                f[a[j]]++;
                t = max(t, f[a[j]]);
            }
            if (t*2 > j - i + 1) x++;
        }
        FOR(j,i,k){
            if (c[a[j]] <= sz) f[a[j]] = 0;
        }
    }
    FOR(i,1,n){
        if (c[i] > sz) {
            memset(v, 0, sizeof(v)); memset(p, 0, sizeof(p));
            int l = n + 2; v[l]++;
            For(j,0,n){
                if (a[j] == i) l++;
                else l--;
                v[l]++;
                p[l] = p[l - 1] + v[l - 1];
                x+=p[l];
            }
        }
    }
    cout << x;
    cerr << "\nProcess returned 0 (0x0)   execution time :  " << 0.001*clock() << " s";
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 4700 KB Output is correct
4 Correct 2 ms 4700 KB Output is correct
5 Correct 1 ms 4696 KB Output is correct
6 Correct 1 ms 4700 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 4700 KB Output is correct
4 Correct 2 ms 4700 KB Output is correct
5 Correct 1 ms 4696 KB Output is correct
6 Correct 1 ms 4700 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 2 ms 4700 KB Output is correct
10 Correct 2 ms 4696 KB Output is correct
11 Correct 2 ms 4700 KB Output is correct
12 Correct 2 ms 4700 KB Output is correct
13 Correct 2 ms 4700 KB Output is correct
14 Correct 2 ms 4700 KB Output is correct
15 Correct 3 ms 4696 KB Output is correct
16 Correct 2 ms 4700 KB Output is correct
17 Correct 1 ms 4700 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 199 ms 5472 KB Output is correct
2 Correct 312 ms 5708 KB Output is correct
3 Correct 131 ms 5304 KB Output is correct
4 Correct 323 ms 5808 KB Output is correct
5 Correct 330 ms 5800 KB Output is correct
6 Correct 377 ms 5868 KB Output is correct
7 Correct 357 ms 5868 KB Output is correct
8 Correct 358 ms 5868 KB Output is correct
9 Correct 357 ms 6072 KB Output is correct
10 Correct 378 ms 5880 KB Output is correct
11 Correct 352 ms 5816 KB Output is correct

Subtask #4
70.0 / 70.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 4700 KB Output is correct
4 Correct 2 ms 4700 KB Output is correct
5 Correct 1 ms 4696 KB Output is correct
6 Correct 1 ms 4700 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 2 ms 4700 KB Output is correct
10 Correct 2 ms 4696 KB Output is correct
11 Correct 2 ms 4700 KB Output is correct
12 Correct 2 ms 4700 KB Output is correct
13 Correct 2 ms 4700 KB Output is correct
14 Correct 2 ms 4700 KB Output is correct
15 Correct 3 ms 4696 KB Output is correct
16 Correct 2 ms 4700 KB Output is correct
17 Correct 1 ms 4700 KB Output is correct
18 Correct 199 ms 5472 KB Output is correct
19 Correct 312 ms 5708 KB Output is correct
20 Correct 131 ms 5304 KB Output is correct
21 Correct 323 ms 5808 KB Output is correct
22 Correct 330 ms 5800 KB Output is correct
23 Correct 377 ms 5868 KB Output is correct
24 Correct 357 ms 5868 KB Output is correct
25 Correct 358 ms 5868 KB Output is correct
26 Correct 357 ms 6072 KB Output is correct
27 Correct 378 ms 5880 KB Output is correct
28 Correct 352 ms 5816 KB Output is correct
29 Correct 365 ms 7464 KB Output is correct
30 Correct 52 ms 3056 KB Output is correct
31 Correct 146 ms 3248 KB Output is correct
32 Correct 580 ms 4844 KB Output is correct
33 Correct 162 ms 3488 KB Output is correct
34 Correct 174 ms 3716 KB Output is correct
35 Correct 92 ms 3216 KB Output is correct
36 Correct 41 ms 2908 KB Output is correct
37 Correct 55 ms 2880 KB Output is correct
38 Correct 396 ms 5872 KB Output is correct
39 Correct 360 ms 5864 KB Output is correct
40 Correct 368 ms 6076 KB Output is correct
41 Correct 383 ms 5816 KB Output is correct
42 Correct 363 ms 6076 KB Output is correct
43 Correct 367 ms 7432 KB Output is correct
44 Correct 370 ms 7500 KB Output is correct
45 Correct 367 ms 7448 KB Output is correct
46 Correct 374 ms 7612 KB Output is correct
47 Correct 369 ms 7444 KB Output is correct
48 Correct 434 ms 6168 KB Output is correct
49 Correct 443 ms 6168 KB Output is correct
50 Correct 391 ms 6072 KB Output is correct
51 Correct 399 ms 6048 KB Output is correct
52 Correct 501 ms 6332 KB Output is correct
53 Correct 513 ms 6328 KB Output is correct
54 Correct 428 ms 6584 KB Output is correct