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Определитель от Комулова
#pragma once
#include
template
constexpr int getElem(const std::array<std::array<int, N>, N>& matr, int i, int j)
{
return matr[i][j];
}
template
constexpr int det(const std::array<std::array<int, N>, N>& matr, const int rowNum, const int colNum, const bool columns[N])
{
if(rowNum >= N && colNum >= N)
return 1;
bool columns2[N] = {false};
for(int i = 0; i < N; i++)
columns2[i] = columns[i];
int sum = 0;
int columnNum = 0;
for(int i = 0; i < N; i++)
{
if(columns[i]==false)
continue;
int a = getElem<N>(matr, rowNum, i);
if(columnNum%2 != 0)
a=-a;
columnNum++;
columns2[i] = false;
sum += a*det<N>(matr, rowNum+1, colNum+1, columns2);
columns2[i] = true;
}
return sum;
}
template
constexpr int determinant(const std::array<std::array<int, N>, N>& matr)
{
if(N <= 1)
return matr[0][0];
bool columns[N] = {true};
for(int i = 0; i < N ;i++)
{
columns[i] = true;
}
return det(matr, 0, 0, columns);
}
Implementation task next_prime.h
#include <math.h>
typedef unsigned int PrimeNumType;
constexpr bool isPrime(PrimeNumType number)
{
for(int i = 2; i <= ceil(std::sqrt(number)); i++)
{
if(number % i == 0)
return false;
}
return true;
}
constexpr PrimeNumType nextPrime(PrimeNumType num)
{
do
{
num++;
}
while(isPrime(num)==false);
return num;
}
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