Submission #494419

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
494419	2021-12-15 12:15:00	jasen_penchev	Brperm (RMI20_brperm)	C++14	100 / 100	1996 ms	168664 KiB

brperm

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#include "brperm.h"
#include <iostream>
#define endl '\n'
using namespace std;
const int MAXN = 500000;
const int LOG = 20;
const int BASE = 26;
const int MOD = 1000000007;
int n;
int pw[MAXN + 1];
struct Hash
{
    int len;
    int num;
};
Hash operator + (Hash h1, Hash h2)
{
    Hash ret;
    ret.len = h1.len + h2.len;
    ret.num = (1ll * h1.num * pw[h2.len] + h2.num) % MOD;
    return ret;
}
bool operator == (Hash h1, Hash h2)
{
    return (h1.len == h2.len and h1.num == h2.num);
 
 
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• Subtask 2: 37 / 37
• Subtask 3: 17 / 17
• Subtask 4: 33 / 33