oj.uz

Submission #487330

# Submission time Handle Problem Language Result Execution time Memory
487330 2021-11-15T07:48:54 Z KienTran Mountains (NOI20_mountains) C++14
100 / 100
 306 ms 18820 KB 
#include <bits/stdc++.h>
#define int long long

using namespace std;

const int O = 3e5 + 5;

int n, a[O], tree[O * 4];
pair <int, int> b[O];

void Update(int id, int l, int r, int u, int x){
    if (l > u || r < u) return;
    if (l == r){
        tree[id] = x;
        return;
    }
    int mid = (l + r) / 2;
    Update(id << 1, l, mid, u, x);
    Update(id << 1 | 1, mid + 1, r, u, x);
    tree[id] = tree[id << 1] + tree[id << 1 | 1];
}

int Get(int id, int l, int r, int u, int v){
    if (l > v || r < u) return 0;
    if (u <= l && r <= v) return tree[id];
    int mid = (l + r) / 2;
    return Get(id << 1, l, mid, u, v) + Get(id << 1 | 1, mid + 1, r, u, v);
}

main(){
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    cin >> n;
    for (int i = 1; i <= n; ++ i){
        cin >> b[i].first; b[i].second = i;
    }

    int res = 0;
    sort(b + 1, b + n + 1);
    for (int i = 1; i <= n; ++ i){
        int j = i;
        while (j < n && b[j + 1].first == b[i].first) j += 1;

        for (int z = i; z <= j; ++ z){
            int l = Get(1, 1, n, 1, b[z].second);
            int r = Get(1, 1, n, b[z].second, n);

            res += r * l;
        }

        for (int z = i; z <= j; ++ z){
            Update(1, 1, n, b[z].second, 1);
        }
        i = j;
    }

    cout << res;
}

Compilation message

Mountains.cpp:30:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   30 | main(){
      | ^~~~

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 183 ms 18736 KB Output is correct
3 Correct 161 ms 18724 KB Output is correct
4 Correct 170 ms 18648 KB Output is correct
5 Correct 162 ms 18760 KB Output is correct
6 Correct 170 ms 18760 KB Output is correct
7 Correct 172 ms 18712 KB Output is correct
8 Correct 161 ms 18760 KB Output is correct
9 Correct 179 ms 18764 KB Output is correct
10 Correct 184 ms 18820 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 150 ms 13728 KB Output is correct
2 Correct 151 ms 13768 KB Output is correct
3 Correct 152 ms 13804 KB Output is correct
4 Correct 160 ms 13804 KB Output is correct
5 Correct 158 ms 13804 KB Output is correct
6 Correct 165 ms 13768 KB Output is correct
7 Correct 152 ms 13772 KB Output is correct
8 Correct 136 ms 13768 KB Output is correct
9 Correct 132 ms 13800 KB Output is correct
10 Correct 0 ms 336 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 150 ms 13728 KB Output is correct
2 Correct 151 ms 13768 KB Output is correct
3 Correct 152 ms 13804 KB Output is correct
4 Correct 160 ms 13804 KB Output is correct
5 Correct 158 ms 13804 KB Output is correct
6 Correct 165 ms 13768 KB Output is correct
7 Correct 152 ms 13772 KB Output is correct
8 Correct 136 ms 13768 KB Output is correct
9 Correct 132 ms 13800 KB Output is correct
10 Correct 0 ms 336 KB Output is correct
11 Correct 194 ms 14064 KB Output is correct
12 Correct 203 ms 14164 KB Output is correct
13 Correct 190 ms 14060 KB Output is correct
14 Correct 186 ms 14068 KB Output is correct
15 Correct 191 ms 14024 KB Output is correct
16 Correct 199 ms 14084 KB Output is correct
17 Correct 247 ms 14024 KB Output is correct
18 Correct 129 ms 14068 KB Output is correct
19 Correct 143 ms 14072 KB Output is correct
20 Correct 0 ms 208 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 0 ms 336 KB Output is correct

Subtask #5
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 0 ms 336 KB Output is correct
11 Correct 6 ms 848 KB Output is correct
12 Correct 6 ms 844 KB Output is correct
13 Correct 6 ms 848 KB Output is correct
14 Correct 9 ms 856 KB Output is correct
15 Correct 6 ms 848 KB Output is correct
16 Correct 6 ms 844 KB Output is correct
17 Correct 7 ms 848 KB Output is correct
18 Correct 7 ms 936 KB Output is correct
19 Correct 5 ms 720 KB Output is correct
20 Correct 1 ms 336 KB Output is correct

Subtask #6
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 150 ms 13728 KB Output is correct
2 Correct 151 ms 13768 KB Output is correct
3 Correct 152 ms 13804 KB Output is correct
4 Correct 160 ms 13804 KB Output is correct
5 Correct 158 ms 13804 KB Output is correct
6 Correct 165 ms 13768 KB Output is correct
7 Correct 152 ms 13772 KB Output is correct
8 Correct 136 ms 13768 KB Output is correct
9 Correct 132 ms 13800 KB Output is correct
10 Correct 0 ms 336 KB Output is correct
11 Correct 194 ms 14064 KB Output is correct
12 Correct 203 ms 14164 KB Output is correct
13 Correct 190 ms 14060 KB Output is correct
14 Correct 186 ms 14068 KB Output is correct
15 Correct 191 ms 14024 KB Output is correct
16 Correct 199 ms 14084 KB Output is correct
17 Correct 247 ms 14024 KB Output is correct
18 Correct 129 ms 14068 KB Output is correct
19 Correct 143 ms 14072 KB Output is correct
20 Correct 0 ms 208 KB Output is correct
21 Correct 219 ms 14944 KB Output is correct
22 Correct 237 ms 14940 KB Output is correct
23 Correct 223 ms 15000 KB Output is correct
24 Correct 217 ms 14920 KB Output is correct
25 Correct 212 ms 14920 KB Output is correct
26 Correct 234 ms 14992 KB Output is correct
27 Correct 238 ms 14944 KB Output is correct
28 Correct 145 ms 14936 KB Output is correct
29 Correct 147 ms 15008 KB Output is correct
30 Correct 0 ms 336 KB Output is correct

Subtask #7
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 183 ms 18736 KB Output is correct
3 Correct 161 ms 18724 KB Output is correct
4 Correct 170 ms 18648 KB Output is correct
5 Correct 162 ms 18760 KB Output is correct
6 Correct 170 ms 18760 KB Output is correct
7 Correct 172 ms 18712 KB Output is correct
8 Correct 161 ms 18760 KB Output is correct
9 Correct 179 ms 18764 KB Output is correct
10 Correct 184 ms 18820 KB Output is correct
11 Correct 150 ms 13728 KB Output is correct
12 Correct 151 ms 13768 KB Output is correct
13 Correct 152 ms 13804 KB Output is correct
14 Correct 160 ms 13804 KB Output is correct
15 Correct 158 ms 13804 KB Output is correct
16 Correct 165 ms 13768 KB Output is correct
17 Correct 152 ms 13772 KB Output is correct
18 Correct 136 ms 13768 KB Output is correct
19 Correct 132 ms 13800 KB Output is correct
20 Correct 0 ms 336 KB Output is correct
21 Correct 194 ms 14064 KB Output is correct
22 Correct 203 ms 14164 KB Output is correct
23 Correct 190 ms 14060 KB Output is correct
24 Correct 186 ms 14068 KB Output is correct
25 Correct 191 ms 14024 KB Output is correct
26 Correct 199 ms 14084 KB Output is correct
27 Correct 247 ms 14024 KB Output is correct
28 Correct 129 ms 14068 KB Output is correct
29 Correct 143 ms 14072 KB Output is correct
30 Correct 0 ms 208 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 1 ms 336 KB Output is correct
36 Correct 1 ms 336 KB Output is correct
37 Correct 1 ms 336 KB Output is correct
38 Correct 1 ms 336 KB Output is correct
39 Correct 1 ms 336 KB Output is correct
40 Correct 0 ms 336 KB Output is correct
41 Correct 6 ms 848 KB Output is correct
42 Correct 6 ms 844 KB Output is correct
43 Correct 6 ms 848 KB Output is correct
44 Correct 9 ms 856 KB Output is correct
45 Correct 6 ms 848 KB Output is correct
46 Correct 6 ms 844 KB Output is correct
47 Correct 7 ms 848 KB Output is correct
48 Correct 7 ms 936 KB Output is correct
49 Correct 5 ms 720 KB Output is correct
50 Correct 1 ms 336 KB Output is correct
51 Correct 219 ms 14944 KB Output is correct
52 Correct 237 ms 14940 KB Output is correct
53 Correct 223 ms 15000 KB Output is correct
54 Correct 217 ms 14920 KB Output is correct
55 Correct 212 ms 14920 KB Output is correct
56 Correct 234 ms 14992 KB Output is correct
57 Correct 238 ms 14944 KB Output is correct
58 Correct 145 ms 14936 KB Output is correct
59 Correct 147 ms 15008 KB Output is correct
60 Correct 0 ms 336 KB Output is correct
61 Correct 241 ms 18768 KB Output is correct
62 Correct 252 ms 18748 KB Output is correct
63 Correct 258 ms 18760 KB Output is correct
64 Correct 238 ms 18740 KB Output is correct
65 Correct 230 ms 18760 KB Output is correct
66 Correct 238 ms 18760 KB Output is correct
67 Correct 236 ms 18652 KB Output is correct
68 Correct 306 ms 18796 KB Output is correct
69 Correct 215 ms 15052 KB Output is correct
70 Correct 0 ms 324 KB Output is correct