oj.uz

답안 #525982

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
525982 2022-02-13T11:59:01 Z model_code Izbori (COCI22_izbori) C++17
110 / 110
 947 ms 36444 KB 
//#include "time_measure.h"
#include <bits/stdc++.h>

using namespace std;

#define X first
#define Y second
#define mp make_pair
#define pb push_back
typedef long long ll;
typedef pair <int, int> pii;

const int INF = 0x3f3f3f3f;
const int N = 2e5 + 5;
const int OFF = (1 << 19);

struct Node{
    int sum;
    ll br;
    int cnt;
    int prop;
    Node(int sum_ = 0, ll br_ = 0, int cnt_ = 0, int prop_ = 0) {
        sum = sum_; br = br_; cnt = cnt_; prop = prop_;
    }
};

int n;
int p[N], bio[2*OFF];
Node T[2*OFF];
vector <int> v[N], saz;
ll sol = 0;

Node mrg(Node a, Node b) {
    assert(a.prop == 0 && a.prop == 0);
    return Node(a.sum + b.sum, a.br + b.br + (ll)b.cnt * a.sum, a.cnt + b.cnt);
}

void propag(int pos) {
    bio[pos] = 1;
    if (T[pos].prop == 0) return;
    T[pos].sum += (ll)T[pos].cnt * T[pos].prop;
    T[pos].br += (ll)T[pos].cnt * (T[pos].cnt + 1) / 2 * T[pos].prop;
    if (pos < OFF) {
        T[pos * 2].prop += T[pos].prop;
        T[pos * 2 + 1].prop += T[pos].prop;
        bio[pos * 2] = bio[pos * 2 + 1] = 1;
    }
    T[pos].prop = 0;
}

Node query(int a, int b, int pos = 1, int lo = 0, int hi = OFF) {
    propag(pos);
    if (lo >= b || hi <= a) return Node();
    if (lo >= a && hi <= b) return T[pos];
    int mid = (lo + hi) / 2;
    return mrg(query(a, b, pos * 2, lo, mid), query(a, b, pos * 2 + 1, mid, hi));
}

void update(int a, int b, int pos = 1, int lo = 0, int hi = OFF) {
    propag(pos);
    if (lo >= b || hi <= a) return;
    if (lo >= a && hi <= b) {
        T[pos].prop=1;
        propag(pos);
        return;
    }
    int mid=(lo+hi)/2;
    update(a, b, pos * 2, lo, mid);
    update(a, b, pos * 2 + 1, mid, hi);
    T[pos] = mrg(T[pos * 2], T[pos * 2 + 1]);
}

void reset(int pos) {
    T[pos].br = T[pos].sum = T[pos].prop = 0;
    if (pos >= OFF) return;
    if (bio[pos * 2]) reset(pos * 2);
    if (bio[pos * 2 + 1]) reset(pos * 2 +1);
    bio[pos] = 0;
}

void minus_jedan(int l, int r) {
    sol += query(l, r).br + (ll)query(0, l).sum * (r - l + 1);
    update(l, r + 1);
}

void jedan(int x) {
    sol += query(0, x).sum;
    update(x, x + 1);
}

void solve() {
    for (int i = 0; i < OFF; ++i) T[OFF + i].cnt = 1;
    for (int i = OFF - 1; i > 0; --i) T[i] = mrg(T[i * 2], T[i * 2 + 1]);

    for (int x = 0; x < n; ++x) {
        if (v[x].empty()) continue;

        update(n, n + 1);
        if (v[x][0]) minus_jedan(n - v[x][0], n - 1);
        int pref = n - v[x][0];
        jedan(++pref);

        for (int i = 1; i < v[x].size(); ++i) {
            int raz = v[x][i] - v[x][i - 1] - 1;
            if (raz != 0) minus_jedan(pref - raz, pref - 1);
            pref = pref - raz + 1;
            jedan(pref);
        }
        if (v[x].back() != n - 1) minus_jedan(pref - (n - v[x].back() - 1), pref - 1);
        reset(1);
    }
    printf("%lld\n", sol);
}

void load() {
    scanf("%d", &n);
    for (int i = 0; i < n; ++i) {
        scanf("%d", &p[i]);
        saz.pb(p[i]);
    }
    sort(saz.begin(), saz.end());
    saz.erase(unique(saz.begin(), saz.end()), saz.end());
    for (int i = 0; i < n; ++i) {
        p[i] = lower_bound(saz.begin(), saz.end(), p[i]) - saz.begin();
        v[p[i]].pb(i);
    }
}

int main() {
//    auto vrijeme = GetTimeMs64();

    load();
    solve();

//    FILE *fp=fopen("current_time", "w");
//    fprintf(fp, "%lld\n", GetTimeMs64()-vrijeme);
//    fclose(fp);

	return 0;
}

Compilation message

Main.cpp: In function 'void solve()':
Main.cpp:103:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  103 |         for (int i = 1; i < v[x].size(); ++i) {
      |                         ~~^~~~~~~~~~~~~
Main.cpp: In function 'void load()':
Main.cpp:116:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  116 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
Main.cpp:118:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  118 |         scanf("%d", &p[i]);
      |         ~~~~~^~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 17 ms 29644 KB Output is correct
2 Correct 17 ms 29656 KB Output is correct
3 Correct 17 ms 29644 KB Output is correct
4 Correct 18 ms 29628 KB Output is correct
5 Correct 18 ms 29644 KB Output is correct
6 Correct 18 ms 29644 KB Output is correct

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 17 ms 29644 KB Output is correct
2 Correct 17 ms 29656 KB Output is correct
3 Correct 17 ms 29644 KB Output is correct
4 Correct 18 ms 29628 KB Output is correct
5 Correct 18 ms 29644 KB Output is correct
6 Correct 18 ms 29644 KB Output is correct
7 Correct 24 ms 29668 KB Output is correct
8 Correct 19 ms 29628 KB Output is correct
9 Correct 20 ms 29632 KB Output is correct
10 Correct 21 ms 29648 KB Output is correct
11 Correct 21 ms 29716 KB Output is correct
12 Correct 22 ms 29680 KB Output is correct
13 Correct 21 ms 29660 KB Output is correct
14 Correct 20 ms 29716 KB Output is correct
15 Correct 21 ms 29660 KB Output is correct
16 Correct 23 ms 29688 KB Output is correct
17 Correct 21 ms 29644 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 167 ms 31828 KB Output is correct
2 Correct 208 ms 32416 KB Output is correct
3 Correct 127 ms 31328 KB Output is correct
4 Correct 215 ms 32320 KB Output is correct
5 Correct 230 ms 32320 KB Output is correct
6 Correct 244 ms 32480 KB Output is correct
7 Correct 234 ms 32484 KB Output is correct
8 Correct 247 ms 32692 KB Output is correct
9 Correct 237 ms 32472 KB Output is correct
10 Correct 249 ms 32596 KB Output is correct
11 Correct 151 ms 33588 KB Output is correct

Subtask #4
70.0 / 70.0

# 결과 실행 시간 메모리 Grader output
1 Correct 17 ms 29644 KB Output is correct
2 Correct 17 ms 29656 KB Output is correct
3 Correct 17 ms 29644 KB Output is correct
4 Correct 18 ms 29628 KB Output is correct
5 Correct 18 ms 29644 KB Output is correct
6 Correct 18 ms 29644 KB Output is correct
7 Correct 24 ms 29668 KB Output is correct
8 Correct 19 ms 29628 KB Output is correct
9 Correct 20 ms 29632 KB Output is correct
10 Correct 21 ms 29648 KB Output is correct
11 Correct 21 ms 29716 KB Output is correct
12 Correct 22 ms 29680 KB Output is correct
13 Correct 21 ms 29660 KB Output is correct
14 Correct 20 ms 29716 KB Output is correct
15 Correct 21 ms 29660 KB Output is correct
16 Correct 23 ms 29688 KB Output is correct
17 Correct 21 ms 29644 KB Output is correct
18 Correct 167 ms 31828 KB Output is correct
19 Correct 208 ms 32416 KB Output is correct
20 Correct 127 ms 31328 KB Output is correct
21 Correct 215 ms 32320 KB Output is correct
22 Correct 230 ms 32320 KB Output is correct
23 Correct 244 ms 32480 KB Output is correct
24 Correct 234 ms 32484 KB Output is correct
25 Correct 247 ms 32692 KB Output is correct
26 Correct 237 ms 32472 KB Output is correct
27 Correct 249 ms 32596 KB Output is correct
28 Correct 151 ms 33588 KB Output is correct
29 Correct 165 ms 33684 KB Output is correct
30 Correct 212 ms 31332 KB Output is correct
31 Correct 394 ms 32840 KB Output is correct
32 Correct 947 ms 36444 KB Output is correct
33 Correct 467 ms 33036 KB Output is correct
34 Correct 479 ms 33172 KB Output is correct
35 Correct 310 ms 32036 KB Output is correct
36 Correct 194 ms 31128 KB Output is correct
37 Correct 228 ms 31432 KB Output is correct
38 Correct 339 ms 33424 KB Output is correct
39 Correct 326 ms 33420 KB Output is correct
40 Correct 443 ms 33340 KB Output is correct
41 Correct 342 ms 33568 KB Output is correct
42 Correct 364 ms 33384 KB Output is correct
43 Correct 581 ms 33836 KB Output is correct
44 Correct 484 ms 33752 KB Output is correct
45 Correct 512 ms 33716 KB Output is correct
46 Correct 451 ms 33740 KB Output is correct
47 Correct 417 ms 33796 KB Output is correct
48 Correct 522 ms 33772 KB Output is correct
49 Correct 533 ms 33752 KB Output is correct
50 Correct 654 ms 34060 KB Output is correct
51 Correct 499 ms 34180 KB Output is correct
52 Correct 598 ms 33676 KB Output is correct
53 Correct 628 ms 33600 KB Output is correct
54 Correct 725 ms 33644 KB Output is correct