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Cod sursa(job #773695)
#include <cstring>
#include <cstdio>
#include <fstream>
#include <algorithm>
#include <map>
using namespace std;
const int MAXN = 21;
int N, K, T;
int X[102];
int power[22], fullbase;
map<int, long long> P;
long long number;
inline int getdigit(int num, int what)
{
return (num / power[what - 1]) % (K + 1);
}
long long getP(int num)
{
if (num / MAXN == fullbase) return 1;
if (P.find(num) != P.end()) return P[num];
int last = num % MAXN + 1, bitn = num / MAXN;
long long resultnow = 0;
for (int i = 1; i <= N; ++i)
if (i != last && getdigit(bitn, i) < K)
{
resultnow += getP((bitn + power[i - 1]) * MAXN + (i - 1));
if (resultnow >= (1LL << 55))
{
resultnow = 1LL << 55;
break;
}
}
P[num] = resultnow;
return resultnow;
}
int main()
{
ifstream fin("nkperm.in");
freopen("nkperm.out", "w", stdout);
fin >> N >> K >> T;
power[0] = 1;
for (int i = 1; i <= N + 1; ++i)
power[i] = power[i - 1] * (K + 1);
fullbase = power[N] - 1;
for (int test = 1; test <= T; ++test)
{
char opt;
fin >> opt;
if (opt == 'A')
{
for (int i = 1; i <= N * K; ++i)
fin >> X[i];
long long result = 1;
int basenow = 0;
for (int i = 1; i <= N * K; ++i)
{
for (int j = 1; j < X[i]; ++j)
if (j != X[i - 1] && getdigit(basenow, j) < K)
result += getP((basenow + power[j - 1]) * MAXN + (j - 1));
basenow += power[X[i] - 1];
}
printf("%lld\n", result);
}
else
{
fin >> number;
--number;
int basenow = 0, last = -1;
for (int i = 1; i <= N * K; ++i)
{
int j;
for (j = 1; j <= N; ++j)
if (j != last && getdigit(basenow, j) < K)
{
if (getP((basenow + power[j - 1]) * MAXN + (j - 1)) <= number)
number -= getP((basenow + power[j - 1]) * MAXN + (j - 1));
else
break;
}
basenow += power[j - 1];
printf("%d ", j);
last = j;
}
printf("\n");
}
}
fin.close();
}