computer science

Dev C$++$

$(3)$ Using a random generator to calculate $.$ Users could enter the number of points in a square to find the $.(1.$ if you use the srand$()$ to generate points in a square, you must avoid generating duplicate points in a square. $2.$ Dynamic memory allocation and pointer notation are needed in your program.$)$

$\frac{\text{A}\text{r}\text{e}\text{a}of\text{s}\text{q}\text{u}\text{a}\text{r}\text{e}}{\text{A}\text{r}\text{e}\text{a}of\text{c}\text{i}\text{r}\text{c}\text{l}\text{e}}=\frac{4}{}$

$\frac{\text{N}\text{u}\text{m}\text{b}\text{e}\text{r}of*+}{\text{N}\text{u}\text{m}\text{b}\text{e}\text{r}of*}\frac{4}{}$

The output looks like

Please enter the number of point in square $100$

The estimation of pi is $3\mathrm{.}32$

Please enter the number of point in square $20000$

The estimation of pi is $3\mathrm{.}1352$

Please enter the number of point in square $1000$

The estimation of pi is $3\mathrm{.}164$

Please enter the number of point in square $33000$

The estimation of pi is $3\mathrm{.}1423$