Submission #798244

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
798244	2023-07-30 14:08:28	vjudge1	Cryptography (NOI20_crypto)	C++17	100 / 100	360 ms	39644 KiB

Crypto

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#include <bits/stdc++.h>
using namespace std;
#define futaba ios_base::sync_with_stdio(false); cin.tie(NULL);
#define rio return 0;
#define ll long long
const ll mod = 1e9 + 7;
// Fun things are fun. //
ll a[300005], b[300005], fac[300005], seg[1200005];
ll merge(ll a, ll b) {
    return a + b;
}
void build(int l, int r, int v) {
    if(l == r) seg[v] = 1;
    else {
        int mid = l + (r - l) / 2;
        build(l, mid, 2 * v);
        build(mid + 1, r, (2 * v) + 1);
        seg[v] = merge(seg[2 * v], seg[(2 * v) + 1]);
    }
}
void update(int l, int r, int v, int pos) {
    if(l == r) seg[v] = 0;
    else {
        int mid = l + (r - l) / 2;
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 9 / 9
• Subtask 3: 10 / 10
• Subtask 4: 11 / 11
• Subtask 5: 21 / 21
• Subtask 6: 13 / 13
• Subtask 7: 19 / 19
• Subtask 8: 12 / 12