{
"metadata": {
"name": "",
"signature": "sha256:6a166cd5bc555687c7e5271b8e9483765eadd38f5e9c5bfca7169a4ded24b03b"
},
"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"CHAPTER 2: THE DECISION CONTROL STRUCTURE"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"EXAMPLE ON PAGE-45"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
" \n",
"print \"Enter a number less than 10\"\n",
"num=eval(raw_input()) #Inputs float variables #you can also input float variables using input()\n",
"if num<10:\n",
" print \"What an obedient servant you are !\\n\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter a number less than 10\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"5\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"What an obedient servant you are !\n",
"\n"
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 2.1: Page-47"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
" \n",
"print \"Enter quantity and rate\"\n",
"qty=eval(raw_input()) #Inputs float variables\n",
"rate=eval(raw_input())\n",
"dis=0\n",
"if qty>1000:\n",
" dis=10\n",
"tot=(qty*rate)-(qty*rate*dis/100)\n",
"print \"Total expenses=Rs.\" ,tot"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter quantity and rate\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"1200\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"15.50\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Total expenses=Rs. 16740.0\n"
]
}
],
"prompt_number": 2
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 2.2: Page-49"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
" \n",
"print \"Enter current year and year of joining\"\n",
"cy=eval(raw_input())\n",
"yoj=eval(raw_input())\n",
"yos=cy-yoj\n",
"if yos>3:\n",
" bonus=2500\n",
" print \"Bonus=Rs.\" ,bonus"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter current year and year of joining\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"2014\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"2009\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Bonus=Rs. 2500\n"
]
}
],
"prompt_number": 4
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 2.3: Page-51"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
" \n",
"print \"Enter basic salary\"\n",
"bs=eval(raw_input())\n",
"if bs<1500:\n",
" hra=bs*10/100\n",
" da=bs*90/100\n",
"else:\n",
" hra=500\n",
" da=bs*98/100\n",
"gs=bs+hra+da\n",
"print \"gross salary=Rs.\" ,gs"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter basic salary\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"1000\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"gross salary=Rs. 2000\n"
]
}
],
"prompt_number": 5
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"EXAMPLE ON Page-53"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
" \n",
"print \"Enter either 1 or 2\"\n",
"i=eval(raw_input())\n",
"if i==1:\n",
" print \"You would go to heaven !\\n\"\n",
"else:\n",
" if i==2:\n",
" print \"Hell was created with you in mind\\n\"\n",
" else:\n",
" print \"How about mother earth !\\n\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter either 1 or 2\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"3\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"How about mother earth !\n",
"\n"
]
}
],
"prompt_number": 6
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 2.4: Page-55-56"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
" \n",
"print \"Enter marks in five subjects\"\n",
"m1=eval(raw_input())\n",
"m2=eval(raw_input())\n",
"m3=eval(raw_input())\n",
"m4=eval(raw_input())\n",
"m5=eval(raw_input())\n",
"per=(m1+m2+m3+m4+m5)*100/500\n",
"if per>=60:\n",
" print \"First division\\n\"\n",
"else:\n",
" if per>=50:\n",
" print \"Second division\\n\"\n",
" else:\n",
" if per>=40:\n",
" print \"Third division\\n\"\n",
" else:\n",
" print \"Fail\\n\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter marks in five subjects\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"70\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"87\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"91\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"91\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"98\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"First division\n",
"\n"
]
}
],
"prompt_number": 7
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"EXAMPLE ON Page-56-57"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
" \n",
"print \"Enter marks in five subjects\"\n",
"m1=eval(raw_input())\n",
"m2=eval(raw_input())\n",
"m3=eval(raw_input())\n",
"m4=eval(raw_input())\n",
"m5=eval(raw_input())\n",
"per=(m1+m2+m3+m4+m5)*100/500\n",
"if per>=60:\n",
" print \"First division\\n\"\n",
"if per>=50 and per<60:\n",
" print \"Second division\\n\"\n",
"if per>=40 and per<50:\n",
" print \"Third division\\n\"\n",
"if per<40:\n",
" print \"Fail\\n\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter marks in five subjects\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"70\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"87\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"91\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"91\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"98\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"First division\n",
"\n"
]
}
],
"prompt_number": 8
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"EXAMPLE ON Page-58"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
" \n",
"print \"Enter marks in five subjects\"\n",
"m1=eval(raw_input())\n",
"m2=eval(raw_input())\n",
"m3=eval(raw_input())\n",
"m4=eval(raw_input())\n",
"m5=eval(raw_input())\n",
"per=(m1+m2+m3+m4+m5)*100/500\n",
"if per>=60:\n",
" print \"First division\\n\"\n",
"elif per>=50:\n",
" print \"Second division\\n\"\n",
"elif per>=40:\n",
" print \"Third division\\n\"\n",
"else:\n",
" print \"fail\\n\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter marks in five subjects\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"70\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"87\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"91\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"91\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"98\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"First division\n",
"\n"
]
}
],
"prompt_number": 9
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 2.5: Page-59"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
" \n",
"print \"Enter age,sex,marital status\"\n",
"age=eval(raw_input())\n",
"sex=raw_input() #Inputs string variables i,e; we can't use these variables in calculations\n",
"ms=raw_input() #Inputs string variables\n",
"if ms=='M':\n",
" print \"Driver is insured\\n\"\n",
"else:\n",
" if sex=='M':\n",
" if age>30:\n",
" print \"Driver is insured\\n\"\n",
" else:\n",
" print \"Driver is not insured\\n\"\n",
" else:\n",
" if age>25:\n",
" print \"Driver is insured\\n\"\n",
" else:\n",
" print \"Driver is not insured\\n\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter age,sex,marital status\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"20\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"M\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"U\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Driver is not insured\n",
"\n"
]
}
],
"prompt_number": 10
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"EXAMPLE ON Page-60"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
" \n",
"print \"Enter age,sex,marital status\"\n",
"age=eval(raw_input())\n",
"sex=raw_input()\n",
"ms=raw_input()\n",
"if (ms=='M') or (ms=='U' and sex=='M' and age>30) or (ms=='U' and sex=='F' and age>25):\n",
" print \"Driver is insured\\n\"\n",
"else:\n",
" print \"Driver is not insured\\n\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter age,sex,marital status\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"20\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"M\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"U\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Driver is not insured\n",
"\n"
]
}
],
"prompt_number": 11
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 2.6: Page-61-62"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
" \n",
"print \"Enter Gender,Years of Service and Qualifications(0=G,1=PG):\"\n",
"g=raw_input()\n",
"yos=eval(raw_input())\n",
"qual=eval(raw_input())\n",
"sal=0\n",
"if g=='m' and yos>=10 and qual==1:\n",
" sal=15000\n",
"elif (g=='m' and yos>=10 and qual==0) or (g=='m' and yos<10 and qual==1):\n",
" sal=10000\n",
"elif g=='m' and yos<10 and qual==0:\n",
" sal=7000\n",
"elif g=='f' and yos>=10 and qual==1:\n",
" sal=12000\n",
"elif g=='f' and yos>=10 and qual==0:\n",
" sal=9000\n",
"elif g=='f' and yos<10 and qual==1:\n",
" sal=10000\n",
"elif g=='f' and yos<10 and qual==0:\n",
" sal=6000\n",
"print \"\\nSalary of Employee=\" ,sal"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter Gender,Years of Service and Qualifications(0=G,1=PG):\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"m\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"5\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"0\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Salary of Employee= 7000\n"
]
}
],
"prompt_number": 12
}
],
"metadata": {}
}
]
}