#include <stdio.h>
//課題3
int rec(int n)
{
if (n == 0)
{
return 3;
}
else if (n == 1)
{
return 0;
}
else if (n == 2)
{
return 2;
}
else
{
return rec(n - 2) + rec(n - 3);
}
}
int main(void)
{
int n = 50;
for(int i = 0; i <= n; i++)
{
}
return 0;
}
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