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frq 2017
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@rohitd3
rohitd3 committed Apr 28, 2023
1 parent 90dde68 commit a3135ed
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Showing 3 changed files with 359 additions and 2 deletions.
1 change: 1 addition & 0 deletions .vscode/dryrun.log
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
make --dry-run --always-make --keep-going --print-directory
make: Entering directory `/Users/rohitde/vscode/rohitfastpages'
cat Makefile

make: Leaving directory `/Users/rohitde/vscode/rohitfastpages'

4 changes: 2 additions & 2 deletions .vscode/targets.log
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@ make all --print-data-base --no-builtin-variables --no-builtin-rules --question

# This program built for i386-apple-darwin11.3.0

# Make data base, printed on Thu Apr 27 08:35:07 2023
# Make data base, printed on Thu Apr 27 20:20:00 2023

# Variables

Expand Down Expand Up @@ -320,6 +320,6 @@ make: *** No rule to make target `all'. Stop.

# strcache free: total = 4087 / max = 4087 / min = 4087 / avg = 4087

# Finished Make data base on Thu Apr 27 08:35:07 2023
# Finished Make data base on Thu Apr 27 20:20:01 2023


356 changes: 356 additions & 0 deletions _notebooks/2023-04-27-frqpractice2017.ipynb
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Original file line number Diff line number Diff line change
@@ -0,0 +1,356 @@
{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": []
},
{
"cell_type": "code",
"execution_count": 2,
"metadata": {
"vscode": {
"languageId": "java"
}
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Remainder: 4\n",
"Number: 1570\n",
"Remainder: 0\n",
"Number: 157\n",
"Remainder: 7\n",
"Number: 15\n",
"Remainder: 5\n",
"Number: 1\n",
"Remainder: 1\n",
"Number: 0\n",
"15704\n",
"0\n"
]
}
],
"source": [
"import java.util.*;\n",
"import java.lang.*;\n",
"\n",
"public class Digits {\n",
"\n",
" private ArrayList<Integer> digitList;\n",
"\n",
" public Digits(int num){\n",
"\n",
" digitList = new ArrayList<Integer>();\n",
"\n",
" int remainderNum = 0;\n",
"\n",
" if(num != 0){\n",
" while(num != 0){\n",
"\n",
" remainderNum = num % 10;\n",
" System.out.println(\"Remainder: \"+ remainderNum);\n",
" digitList.add(0,remainderNum);\n",
" num = num / 10;\n",
" System.out.println(\"Number: \" + num);\n",
" \n",
" }\n",
" }else{\n",
" digitList.add(num);\n",
" }\n",
"\n",
" }\n",
"\n",
" public String toString(){\n",
" \n",
" String digitListPrint = \"\";\n",
"\n",
" for(int i = 0; i < digitList.size(); i++){\n",
" digitListPrint+=digitList.get(i);\n",
" } \n",
" return digitListPrint;\n",
" }\n",
"\n",
" public static void main(String[] args){\n",
" Digits d1 = new Digits(15704);\n",
" System.out.println(d1);\n",
"\n",
" Digits d2 = new Digits(0);\n",
" System.out.println(d2);\n",
"\n",
" }\n",
"\n",
"}\n",
"Digits.main(null);"
]
},
{
"cell_type": "code",
"execution_count": 4,
"metadata": {
"vscode": {
"languageId": "java"
}
},
"outputs": [],
"source": [
"public interface StudyPractice{ // defintion of the method is given, not the implementation\n",
" String getProblem();\n",
"\n",
" void nextProblem();\n",
"}"
]
},
{
"cell_type": "code",
"execution_count": 6,
"metadata": {
"vscode": {
"languageId": "java"
}
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"7 TIMES 3\n",
"7 TIMES 4\n",
"7 TIMES 5\n",
"7 TIMES 6\n",
"4 TIMES 13\n",
"4 TIMES 13\n",
"4 TIMES 15\n",
"4 TIMES 16\n"
]
}
],
"source": [
"public class MultPractice implements StudyPractice {\n",
"\n",
" private int firstInt = 0;\n",
" private int secondInt = 0;\n",
"\n",
" public MultPractice(int firstInt, int secondInt){\n",
" this.firstInt = firstInt;\n",
" this.secondInt = secondInt;\n",
" }\n",
" \n",
" public String getProblem(){\n",
" return firstInt + \" TIMES \" + secondInt;\n",
" }\n",
"\n",
" public void nextProblem(){\n",
" secondInt+=1;\n",
" }\n",
"\n",
" public static void main(String[] args){\n",
" StudyPractice p1 = new MultPractice(7, 3);\n",
" System.out.println(p1.getProblem());\n",
"\n",
" p1.nextProblem();\n",
" System.out.println(p1.getProblem());\n",
"\n",
" p1.nextProblem();\n",
" System.out.println(p1.getProblem()); \n",
"\n",
" p1.nextProblem();\n",
" System.out.println(p1.getProblem());\n",
"\n",
"\n",
" StudyPractice p2 = new MultPractice(4, 12);\n",
" p2.nextProblem();\n",
" \n",
" System.out.println(p2.getProblem());\n",
" System.out.println(p2.getProblem());\n",
" p2.nextProblem();\n",
" p2.nextProblem();\n",
" System.out.println(p2.getProblem());\n",
" p2.nextProblem();\n",
" System.out.println(p2.getProblem());\n",
" }\n",
" \n",
"\n",
"}\n",
"MultPractice.main(null);"
]
},
{
"cell_type": "code",
"execution_count": 4,
"metadata": {
"vscode": {
"languageId": "java"
}
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"t ate late.\n",
"2\n",
"te late.\n",
"4\n",
"te.\n",
"-1\n",
"Last occurrence: 11\n"
]
}
],
"source": [
"public class Phrase{\n",
"\n",
" private String currentPhrase = \"\";\n",
"\n",
" public Phrase(String p){\n",
" currentPhrase = p;\n",
" }\n",
"\n",
" public int findNthOccurrence(String str, int n){\n",
" return 3;\n",
" }\n",
"\n",
" public void replaceNthOccurrence(String str, int n, String repl){\n",
" int indexOccurence = findNthOccurrence(str, n);\n",
"\n",
" if(indexOccurence != -1){\n",
" String str1 = currentPhrase.substring(0, indexOccurence);\n",
" String str2 = currentPhrase.substring(indexOccurence + str.length());\n",
" currentPhrase = str1 + repl + str2;\n",
" }\n",
" }\n",
"\n",
" public int findLastOccurrence(String str){\n",
" \n",
" String newPhrase = new String(currentPhrase);\n",
" int n = currentPhrase.indexOf(str);\n",
" \n",
" int lastIndex = 0;\n",
"\n",
" while(n != -1){\n",
"\n",
" newPhrase = newPhrase.substring(n+1);\n",
" System.out.println(newPhrase);\n",
" n = newPhrase.indexOf(str);\n",
" System.out.println(n);\n",
" }\n",
"\n",
" if(newPhrase.length() != 0){\n",
" lastIndex = currentPhrase.length() - newPhrase.length() -1;\n",
" System.out.println(\"Last occurrence: \" + lastIndex);\n",
" return lastIndex;\n",
" } else {\n",
" System.out.println(\"Last occurrence: -1\");\n",
" return -1;\n",
" }\n",
" }\n",
"\n",
"\n",
" public String toString(){\n",
" return \"Phrase: \" + currentPhrase;\n",
" }\n",
"\n",
" public static void main(String[] args){\n",
" Phrase phrase1 = new Phrase(\"A cat ate late.\");\n",
" phrase1.replaceNthOccurrence(\"at\", 1, \"rane\");\n",
" // System.out.println(new String(\"A cat ate late.\").length());\n",
" Phrase phrase2 = new Phrase(\"A cat ate late.\");\n",
" phrase2.findLastOccurrence(\"at\");\n",
" }\n",
"\n",
"}\n",
"Phrase.main(null);"
]
},
{
"cell_type": "code",
"execution_count": 15,
"metadata": {
"vscode": {
"languageId": "java"
}
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"row: 2 column: 1\n",
"row: 0 column: 0\n",
"null\n"
]
}
],
"source": [
"public class Position{\n",
"\n",
" // int[][] intArr = { { 15, 5, 9 ,10 }, { 12, 16, 11, 6 }, { 14, 8, 13, 7}};\n",
"\n",
" private int row = 0;\n",
" private int col = 0;\n",
"\n",
"\n",
" public Position(int r, int c){\n",
" row = r;\n",
" col = c;\n",
" }\n",
"\n",
" public static Position findPosition(int num, int[][] intArr){\n",
" for(int i = 0; i < intArr.length; i++){\n",
" for(int g = 0; g < intArr[i].length; g++){\n",
" if(intArr[i][g] == num){\n",
" System.out.println(\"row: \" + i + \" column: \" + g);\n",
" return new Position(i, g);\n",
" }\n",
"\n",
" }\n",
" }\n",
" System.out.println(\"null\");\n",
" return null;\n",
" }\n",
"\n",
" public static Position[][] getSuccessorArray(int[][] intArr){\n",
" Position[][] posArray = new Position[intArr.length][intArr[0].length];\n",
" for(int i = 0; i < intArr.length; i++){\n",
" for(int g = 0; g < intArr[i].length; g++){\n",
" posArray[i][g] = findPosition(intArr[i][g] + 1, intArr);\n",
" }\n",
" } \n",
" return posArray;\n",
" }\n",
"\n",
"\n",
" public static void main(String[] args){\n",
" int[][] intArr = { { 15, 5, 9 ,10 }, { 12, 16, 11, 6 }, { 14, 8, 13, 7}};\n",
" Position.findPosition(8, intArr);\n",
" Position.findPosition(15, intArr);\n",
" Position.findPosition(17, intArr);\n",
" }\n",
"\n",
"}\n",
"Position.main(null);"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Java",
"language": "java",
"name": "java"
},
"language_info": {
"codemirror_mode": "java",
"file_extension": ".jshell",
"mimetype": "text/x-java-source",
"name": "Java",
"pygments_lexer": "java",
"version": "19.0.2+7-44"
},
"orig_nbformat": 4
},
"nbformat": 4,
"nbformat_minor": 2
}

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