Submission #759054

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
759054	2023-06-15 17:37:40	Desh03	Two Currencies (JOI23_currencies)	C++17	100 / 100	1429 ms	38020 KiB

currencies

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include <bits/stdc++.h>
using namespace std;
struct fenwick {
    vector<pair<long long, int>> fenw;
    int n;
    fenwick(int n_) : n(n_) {
        fenw.resize(n, {0, 0});
    }
    void upd(int i, int d, int d2) {
        for (; i < n; i |= i + 1) fenw[i].first += d, fenw[i].second += d2;
    }
    pair<long long, int> qry(int i) {
        pair<long long, int> s = {0, 0};
        for (; i >= 0; i = (i & (i + 1)) - 1) s.first += fenw[i].first, s.second += fenw[i].second;
        return s;
    }
};
vector<vector<int>> g, up;
vector<int> in, out, dep;
int t;
const int lg = 17;
void dfs(int u) {
    in[u] = t++;
    for (int i = 1; i < lg; i++) up[i][u] = up[i - 1][up[i - 1][u]];
    for (int v : g[u])
        if (v ^ up[0][u])
            up[0][v] = u, dep[v] = dep[u] + 1, dfs(v);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

currencies.cpp: In function 'int main()':
currencies.cpp:87:31: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   87 |                 int m = l[id] + r[id] >> 1;
currencies.cpp:50:18: warning: unused variable 'c' [-Wunused-variable]
   50 |     int n, m, q, c = 0;
      |                  ^

• Subtask 1: 10 / 10
• Subtask 2: 28 / 28
• Subtask 3: 30 / 30
• Subtask 4: 32 / 32