Submission #780695

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
780695	2023-07-12 11:48:35	Sami_Massah	Sumtree (INOI20_sumtree)	C++17	100 / 100	2059 ms	290284 KiB

Main

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#include <bits/stdc++.h>
using namespace std;
const int maxn = 5e5 + 12, maxk = 2e5 + 12, lg = 18, mod = 1e9 + 7;
int n, bs, tz, tms, qsum, h[maxk], col[maxk],  sz[maxk], st[maxk], en[maxk],  sum1[maxk * 3], sum2[maxk * 3];
long long ans, fact[maxn], rfact[maxn];
set <pair<int, int>> Q[maxk * 3];
vector <int> conn[maxk];
bitset <maxn> marked, zero;
long long tav(long long a, long long b){
    if(b == 0)
        return 1;
    a %= mod;
    long long x = tav(a * a % mod, b / 2);
    if(b % 2)
        return x * a % mod;
    return x % mod;
}
void update_tree1(int l, int r, int u, int k, int L = 0, int R = n){
    if(r < L || R < l)
        return;
    if(l <= L && R <= r){
        sum1[u] = k;
        return;
    }
    int mid = (L + R) / 2;
    update_tree1(l, r, u * 2, k, L, mid);
    update_tree1(l, r, u * 2 + 1, k, mid + 1, R);
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 20 / 20
• Subtask 5: 30 / 30