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02_assignment7.cpp
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02_assignment7.cpp
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#include <iostream>
using namespace std;
int choise(int n, int m)
{
int u = 1;
int d = 1;
for (int i = 1; i < m + 1; ++i)
{
u *= (n + 1 - i);
d *= i;
}
return u / d;
}
void fillarray1(int mod, int *d, int v, int it)
{
if (it == 0)
return;
it--;
d[it] = v % mod;
fillarray1(mod, d, ((v - d[it])/mod), it);
}
void fillarray(int mod, int *d, int v, int len)
{
fillarray1(mod, d, v, len);
}
void print(int n, int *d, int ind)
{
if (n > 0)
{
if (d[ind] > 0)
{
cout << 0;
d[ind]--;
}
else
{
cout << 1;
ind++;
}
print(--n, d, ind);
}
else
{
cout << endl;
return;
}
}
void strprint(int n, int m, int *d, int it)
{
fillarray(n - m + 1, d, it, m);
print(n, d, 0);
}
void substr(int n, int m)
{
int chs = choise(n,m);
int d[m];
strprint(n, m, d, chs);
}
int main(int argc, char const *argv[])
{
// substr(5, 2);
int d[2];
for (int i = 0; i < 9; ++i)
{
fillarray(4, d, i, 2);
cout << d[0];
cout << d[1] << endl;
// print(5, d, 0);
}
return 0;
}