oj.uz

답안 #632498

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
632498 2022-08-20T07:53:31 Z shmad Mountains (NOI20_mountains) C++17
100 / 100
 822 ms 76336 KB 
    #pragma GCC optimize("O3", "unroll-loops") // "Ofast" 	
    #pragma GCC target("avx2", "bmi", "bmi2", "lzcnt", "popcnt") 
     
    #include <bits/stdc++.h>
     
    #define int long long
    #define vt vector
    #define pb push_back
    #define all(x) (x).begin(), (x).end()
    #define sz(x) (int)(x).size()
    #define ff first
    #define ss second
    #define dbg(x) cerr << #x << " = " << x << '\n'
    #define bit(x, i) ((x) >> (i) & 1)
     
    using namespace std;
    using ll = long long;
    using pii = pair<int, int>;
    using vvt = vt< vt<int> >;
     
    const int N = 1e6 + 5, mod = 1e9 + 7, B = 500;
    const ll inf = 1e18 + 7, LIM = (1ll << 60);
    const double eps = 1e-6;
     
    int n;;
    map<ll, int> m;
    set<ll> st;
    ll h[N], t[4 * N];
     
    void upd (int pos, int v = 1, int tl = 1, int tr = N) {
    	if (tl == tr) {
    		t[v]++;
    		return;
    	}
    	int tm = tl + tr >> 1;
    	if (pos <= tm) upd(pos, v << 1, tl, tm);
    	else upd(pos, v << 1 | 1, tm + 1, tr);
    	t[v] = t[v << 1] + t[v << 1 | 1];
    }
     
    ll get (int l, int r, int v = 1, int tl = 1, int tr = N) {
    	if (tl > r || tr < l) return 0ll;
    	if (tl >= l && tr <= r) return t[v];
    	int tm = tl + tr >> 1;
    	ll a = get(l, r, v << 1, tl, tm);
    	ll b = get(l, r, v << 1 | 1, tm + 1, tr);
    	return (a + b);
    }
     
    ll l[N], r[N];
     
    void solve () {
    	cin >> n;
    	vt<int> p(n + 1, 0), s(n + 2, 0);
    	for (int i = 1; i <= n; i++) cin >> h[i], st.insert(h[i]);
    	for (int i: st) m[i] = sz(m);
    	for (int i = 1; i <= n; i++) h[i] = m[h[i]];
    	ll ans = 0;
    	for (int i = 1; i <= n; i++) {
    		p[i] = p[i - 1] + (h[i] == 0);
    		l[i] = (h[i] == 1 ? p[i - 1] : get(0, h[i] - 1));
    		upd(h[i]);
    	}
    	fill(t, t + 4 * N, 0);
    	for (int i = n; i >= 1; i--) {
    		s[i] = s[i + 1] + (h[i] == 0);
    		r[i] = (h[i] == 1 ? s[i + 1] : get(0, h[i] - 1));
    		upd(h[i]);
    	}
    	for (int i = 1; i <= n; i++) ans += (l[i] * r[i]);
    	cout << ans;
    	cout << '\n';
    }
     
    bool testcases = 0;
     
    signed main() {
    	cin.tie(0) -> sync_with_stdio(0);
    	int test = 1;
    	if (testcases) cin >> test;
    	for (int cs = 1; cs <= test; cs++) {
    		solve();
    	}
    }

Compilation message

Mountains.cpp: In function 'void upd(long long int, long long int, long long int, long long int)':
Mountains.cpp:35:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   35 |      int tm = tl + tr >> 1;
      |               ~~~^~~~
Mountains.cpp: In function 'll get(long long int, long long int, long long int, long long int, long long int)':
Mountains.cpp:44:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   44 |      int tm = tl + tr >> 1;
      |               ~~~^~~~

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 31572 KB Output is correct
2 Correct 321 ms 76216 KB Output is correct
3 Correct 338 ms 76276 KB Output is correct
4 Correct 374 ms 76148 KB Output is correct
5 Correct 327 ms 76168 KB Output is correct
6 Correct 319 ms 76336 KB Output is correct
7 Correct 318 ms 76196 KB Output is correct
8 Correct 326 ms 76292 KB Output is correct
9 Correct 283 ms 60348 KB Output is correct
10 Correct 267 ms 60508 KB Output is correct

Subtask #2
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 66 ms 43348 KB Output is correct
2 Correct 65 ms 43352 KB Output is correct
3 Correct 65 ms 43300 KB Output is correct
4 Correct 67 ms 43332 KB Output is correct
5 Correct 67 ms 43300 KB Output is correct
6 Correct 69 ms 43284 KB Output is correct
7 Correct 66 ms 43292 KB Output is correct
8 Correct 72 ms 43372 KB Output is correct
9 Correct 69 ms 43340 KB Output is correct
10 Correct 16 ms 31572 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 66 ms 43348 KB Output is correct
2 Correct 65 ms 43352 KB Output is correct
3 Correct 65 ms 43300 KB Output is correct
4 Correct 67 ms 43332 KB Output is correct
5 Correct 67 ms 43300 KB Output is correct
6 Correct 69 ms 43284 KB Output is correct
7 Correct 66 ms 43292 KB Output is correct
8 Correct 72 ms 43372 KB Output is correct
9 Correct 69 ms 43340 KB Output is correct
10 Correct 16 ms 31572 KB Output is correct
11 Correct 161 ms 43284 KB Output is correct
12 Correct 158 ms 43320 KB Output is correct
13 Correct 171 ms 43332 KB Output is correct
14 Correct 245 ms 43296 KB Output is correct
15 Correct 161 ms 43316 KB Output is correct
16 Correct 164 ms 43416 KB Output is correct
17 Correct 189 ms 43328 KB Output is correct
18 Correct 115 ms 43348 KB Output is correct
19 Correct 116 ms 43368 KB Output is correct
20 Correct 12 ms 31572 KB Output is correct

Subtask #4
36.0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 31684 KB Output is correct
2 Correct 14 ms 31696 KB Output is correct
3 Correct 13 ms 31700 KB Output is correct
4 Correct 13 ms 31624 KB Output is correct
5 Correct 14 ms 31652 KB Output is correct
6 Correct 17 ms 31640 KB Output is correct
7 Correct 15 ms 31700 KB Output is correct
8 Correct 14 ms 31668 KB Output is correct
9 Correct 15 ms 31636 KB Output is correct
10 Correct 16 ms 31548 KB Output is correct

Subtask #5
28.0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 31684 KB Output is correct
2 Correct 14 ms 31696 KB Output is correct
3 Correct 13 ms 31700 KB Output is correct
4 Correct 13 ms 31624 KB Output is correct
5 Correct 14 ms 31652 KB Output is correct
6 Correct 17 ms 31640 KB Output is correct
7 Correct 15 ms 31700 KB Output is correct
8 Correct 14 ms 31668 KB Output is correct
9 Correct 15 ms 31636 KB Output is correct
10 Correct 16 ms 31548 KB Output is correct
11 Correct 30 ms 33084 KB Output is correct
12 Correct 27 ms 33024 KB Output is correct
13 Correct 27 ms 33064 KB Output is correct
14 Correct 28 ms 33064 KB Output is correct
15 Correct 25 ms 33040 KB Output is correct
16 Correct 24 ms 33032 KB Output is correct
17 Correct 25 ms 33040 KB Output is correct
18 Correct 29 ms 32396 KB Output is correct
19 Correct 21 ms 31996 KB Output is correct
20 Correct 11 ms 31592 KB Output is correct

Subtask #6
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 66 ms 43348 KB Output is correct
2 Correct 65 ms 43352 KB Output is correct
3 Correct 65 ms 43300 KB Output is correct
4 Correct 67 ms 43332 KB Output is correct
5 Correct 67 ms 43300 KB Output is correct
6 Correct 69 ms 43284 KB Output is correct
7 Correct 66 ms 43292 KB Output is correct
8 Correct 72 ms 43372 KB Output is correct
9 Correct 69 ms 43340 KB Output is correct
10 Correct 16 ms 31572 KB Output is correct
11 Correct 161 ms 43284 KB Output is correct
12 Correct 158 ms 43320 KB Output is correct
13 Correct 171 ms 43332 KB Output is correct
14 Correct 245 ms 43296 KB Output is correct
15 Correct 161 ms 43316 KB Output is correct
16 Correct 164 ms 43416 KB Output is correct
17 Correct 189 ms 43328 KB Output is correct
18 Correct 115 ms 43348 KB Output is correct
19 Correct 116 ms 43368 KB Output is correct
20 Correct 12 ms 31572 KB Output is correct
21 Correct 478 ms 53784 KB Output is correct
22 Correct 462 ms 53740 KB Output is correct
23 Correct 433 ms 53728 KB Output is correct
24 Correct 406 ms 53764 KB Output is correct
25 Correct 468 ms 53880 KB Output is correct
26 Correct 424 ms 53812 KB Output is correct
27 Correct 466 ms 53760 KB Output is correct
28 Correct 215 ms 53788 KB Output is correct
29 Correct 240 ms 53772 KB Output is correct
30 Correct 13 ms 31620 KB Output is correct

Subtask #7
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 31572 KB Output is correct
2 Correct 321 ms 76216 KB Output is correct
3 Correct 338 ms 76276 KB Output is correct
4 Correct 374 ms 76148 KB Output is correct
5 Correct 327 ms 76168 KB Output is correct
6 Correct 319 ms 76336 KB Output is correct
7 Correct 318 ms 76196 KB Output is correct
8 Correct 326 ms 76292 KB Output is correct
9 Correct 283 ms 60348 KB Output is correct
10 Correct 267 ms 60508 KB Output is correct
11 Correct 66 ms 43348 KB Output is correct
12 Correct 65 ms 43352 KB Output is correct
13 Correct 65 ms 43300 KB Output is correct
14 Correct 67 ms 43332 KB Output is correct
15 Correct 67 ms 43300 KB Output is correct
16 Correct 69 ms 43284 KB Output is correct
17 Correct 66 ms 43292 KB Output is correct
18 Correct 72 ms 43372 KB Output is correct
19 Correct 69 ms 43340 KB Output is correct
20 Correct 16 ms 31572 KB Output is correct
21 Correct 161 ms 43284 KB Output is correct
22 Correct 158 ms 43320 KB Output is correct
23 Correct 171 ms 43332 KB Output is correct
24 Correct 245 ms 43296 KB Output is correct
25 Correct 161 ms 43316 KB Output is correct
26 Correct 164 ms 43416 KB Output is correct
27 Correct 189 ms 43328 KB Output is correct
28 Correct 115 ms 43348 KB Output is correct
29 Correct 116 ms 43368 KB Output is correct
30 Correct 12 ms 31572 KB Output is correct
31 Correct 13 ms 31684 KB Output is correct
32 Correct 14 ms 31696 KB Output is correct
33 Correct 13 ms 31700 KB Output is correct
34 Correct 13 ms 31624 KB Output is correct
35 Correct 14 ms 31652 KB Output is correct
36 Correct 17 ms 31640 KB Output is correct
37 Correct 15 ms 31700 KB Output is correct
38 Correct 14 ms 31668 KB Output is correct
39 Correct 15 ms 31636 KB Output is correct
40 Correct 16 ms 31548 KB Output is correct
41 Correct 30 ms 33084 KB Output is correct
42 Correct 27 ms 33024 KB Output is correct
43 Correct 27 ms 33064 KB Output is correct
44 Correct 28 ms 33064 KB Output is correct
45 Correct 25 ms 33040 KB Output is correct
46 Correct 24 ms 33032 KB Output is correct
47 Correct 25 ms 33040 KB Output is correct
48 Correct 29 ms 32396 KB Output is correct
49 Correct 21 ms 31996 KB Output is correct
50 Correct 11 ms 31592 KB Output is correct
51 Correct 478 ms 53784 KB Output is correct
52 Correct 462 ms 53740 KB Output is correct
53 Correct 433 ms 53728 KB Output is correct
54 Correct 406 ms 53764 KB Output is correct
55 Correct 468 ms 53880 KB Output is correct
56 Correct 424 ms 53812 KB Output is correct
57 Correct 466 ms 53760 KB Output is correct
58 Correct 215 ms 53788 KB Output is correct
59 Correct 240 ms 53772 KB Output is correct
60 Correct 13 ms 31620 KB Output is correct
61 Correct 822 ms 76236 KB Output is correct
62 Correct 766 ms 76200 KB Output is correct
63 Correct 760 ms 76244 KB Output is correct
64 Correct 755 ms 76236 KB Output is correct
65 Correct 746 ms 76184 KB Output is correct
66 Correct 727 ms 76156 KB Output is correct
67 Correct 747 ms 76272 KB Output is correct
68 Correct 546 ms 60392 KB Output is correct
69 Correct 465 ms 57568 KB Output is correct
70 Correct 13 ms 31564 KB Output is correct