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Nilay - cs-python-loops-challenge #12

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134 changes: 104 additions & 30 deletions cs-python-loops-challenge.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -42,7 +42,7 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 1,
"metadata": {},
"outputs": [],
"source": [
Expand All @@ -58,7 +58,7 @@
"cell_type": "markdown",
"metadata": {},
"source": [
"See how the loop in the code above goes from 1 (incl) up to (but not including) num+1 ?\n",
"See how the loop in the code aboveh goes from 1 (incl) up to (but not including) num+1 ?\n",
"<p>Also, see the line:</p>\n",
"\n",
"```python\n",
Expand All @@ -76,17 +76,28 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 2,
"metadata": {},
"outputs": [],
"outputs": [
{
"data": {
"text/plain": [
"5050"
]
},
"execution_count": 2,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#run the funtion\n",
"sumTo(100)"
]
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 3,
"metadata": {},
"outputs": [],
"source": [
Expand All @@ -98,7 +109,7 @@
"cell_type": "markdown",
"metadata": {},
"source": [
"## Exercise - write the code for the following functions as described\n"
"# Exercise - write the code for the following functions as described\n"
]
},
{
Expand All @@ -110,31 +121,42 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 4,
"metadata": {},
"outputs": [],
"source": [
"def squaresTo(num):\n",
" squares = 0\n",
" #add your code with the required loop here\n",
" \n",
"\n",
" for i in range(1,num+1):\n",
" squares = squares + i**2\n",
" return squares"
]
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 5,
"metadata": {},
"outputs": [],
"outputs": [
{
"data": {
"text/plain": [
"338350"
]
},
"execution_count": 5,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#run the funtion\n",
"squaresTo(100)"
]
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 6,
"metadata": {},
"outputs": [],
"source": [
Expand All @@ -151,31 +173,43 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 10,
"metadata": {},
"outputs": [],
"source": [
"def sumOfFactors(factor, num):\n",
" sumF=0\n",
" # add the loop here\n",
" \n",
" \n",
" return sumF"
" num1 = 0\n",
" i = 0\n",
" while factor * i <= num:\n",
" num1 += factor * i\n",
" i=i+1\n",
" return num1\n"
]
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 11,
"metadata": {},
"outputs": [],
"outputs": [
{
"data": {
"text/plain": [
"1683"
]
},
"execution_count": 11,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#run the function\n",
"sumOfFactors(3, 100)"
]
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 12,
"metadata": {},
"outputs": [],
"source": [
Expand All @@ -191,24 +225,38 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 43,
"metadata": {},
"outputs": [],
"source": [
"def sumOfMultiplesOfTwoFactors(f1,f2,num):\n",
" sum2F = 0\n",
" #add your code with loop here\n",
" i = 0\n",
" while (f1 * f2) * i <=num:\n",
" sum2F += (f1*f2) * i\n",
" i = i + 1\n",
" \n",
"\n",
" \n",
" return sum2F\n",
" "
]
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 44,
"metadata": {},
"outputs": [],
"outputs": [
{
"data": {
"text/plain": [
"432"
]
},
"execution_count": 44,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#call the function\n",
"sumOfMultiplesOfTwoFactors(3,4,100)"
Expand Down Expand Up @@ -243,7 +291,7 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 22,
"metadata": {},
"outputs": [],
"source": [
Expand All @@ -252,6 +300,14 @@
" #hint: start by assuming the number IS a prime\n",
" isPrime = True\n",
" \n",
" for i in range(2, 100):\n",
" if num % i == 0 and i != num:\n",
" print(\"not prime\")\n",
" isPrime = False\n",
" break\n",
" \n",
" \n",
" \n",
" #write your code using a loop to test whether a number is a prime\n",
" #hint: when is a number NOT a prime??\n",
" \n",
Expand All @@ -260,12 +316,30 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 26,
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"not prime\n"
]
},
{
"data": {
"text/plain": [
"False"
]
},
"execution_count": 26,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"# run the function\n",
"primeTest(23)"
"primeTest(15)"
]
},
{
Expand Down