Submission #893273

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
893273	2023-12-26 19:57:58	ksujay2	Two Currencies (JOI23_currencies)	C++17	100 / 100	4265 ms	33224 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;
using ll = long long;
int lg(unsigned long long i) { return i ? __builtin_clzll(1) - __builtin_clzll(i) : -1; }
struct BIT {
    vector<ll> tree;
    BIT(int n) { tree = vector<ll>(n + 1); }
    ll sum(int k) { ll s = 0; while(k >= 1) s += tree[k], k -= k&-k; return s; }
    void add(int k, ll x) { while (k < (int)tree.size()) tree[k] += x, k += k&-k; }
    int lb(ll x) {
        ll s = 0, p = 0;
        for(int i = lg(tree.size()); i >= 0; i--)
            if(p + (1 << i) < tree.size() && s + tree[p + (1 << i)] <= x)
                p += (1 << i), s += tree[p];
        return p;
    }
};
struct Edge {
    int a, b;
    vector<int> c;
};
struct Query {
    int S, E, i;
    ll s;
};
const int BS = 450;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

currencies.cpp: In member function 'int BIT::lb(ll)':
currencies.cpp:14:29: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |             if(p + (1 << i) < tree.size() && s + tree[p + (1 << i)] <= x)
      |                ~~~~~~~~~~~~~^~~~~~~~~~~~~

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