Submission #504589

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
504589	2022-01-10 06:39:29	Jomnoi	Cryptography (NOI20_crypto)	C++17	100 / 100	621 ms	36220 KiB

Crypto

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#include <bits/stdc++.h>
#define DEBUG 0
using namespace std;
const int N = 3e5 + 10;
const int MOD = 1e9 + 7;
int p[N];
map <int, int> cmp;
int fenwick[N];
long long fac[N];
void update(int idx, int val) {
    for(; idx < N; idx += (idx & -idx)) {
        fenwick[idx] += val;
    }
}
int query(int idx) {
    int res = 0;
    for(; idx > 0; idx -= (idx & -idx)) {
        res += fenwick[idx];
    }
    return res;
}
int main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    int n;
    cin >> n;
 
 
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