cpp/cs103/hw-arrays/reverse

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Description
html markup
shown to student

Write a code fragment to copy the values from one array
<tt>src</tt> into another array <tt>dest</tt>,
but in reverse order. For example, if <tt>src</tt> contains the four numbers
<style>
table.t * {font-family: 'Source Code Pro', monospace !important;}
table.t * {border: 1px solid black !important;}
table.t {border-collapse: collapse; width: auto !important;}
span.spoiler {color: white; border: 1px solid black;}
</style>
<table class='t'><tr><td>4<td>3<td>17<td>1</table>
then your code should fill <tt>dest</tt> with
<table class='t'><tr><td>1<td>17<td>3<td>4</table>
<b>Note:</b> the program will read the array size <tt>n</tt> and <tt>src</tt>
from input. But the input and output are done already for you.
<p><b>Hint</b> (hover to reveal): <span class='spoiler'>To get started, note that the element at position <tt>0</tt>
should correspond to position <tt>n-1</tt> in the new array.</span>

Epilogue
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shown when solved

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Remarks
Comments, history, license, etc.

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Engine
Choices
json list of string, bool pairs
e.g. [["good", true], ["bad", false]]

Correct answer
Template / Reference solution

Template / Reference solution

#include <iostream>
#include <cmath>
using namespace std;

int main() {
// read the input
int n;
cin >> n;
int src[100]; // declare an array, max size 100
for (int i = 0; i < n; i++)
cin >> src[i]; // read elements of src from input

// declare dest array
\[ REDACTED ]\

// copy from src to dest, but in reverse order
\[
REDACTED
]\

// output dest to check it
for (int i = 0; i < n; i++)
cout << dest[i] << " ";

return 0;
}

Java test suite
See manual

C++ test suite
json list of stdin/args tests
e.g. [{"stdin":"hi", "args":["4", "5"]}, {"stdin":"noargs"}]
to just run once with no input use [{}]

[
{"stdin": "4\n1 17 3 4"},
{"stdin": "5\n90210 2014 103 11 6"},
{"stdin": "6\n4 8 15 16 23 42"},
{"stdin": "10\n4 1 6 9 6 7 1 1 1 1"}
]

C++ test suite
See manual

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i.e., just a demo
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json list of flags
e.g. ["-Wno-unused-variable"]

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see default_cppflags
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Property	Value
Description html markup shown to student	Write a code fragment to copy the values from one array <tt>src</tt> into another array <tt>dest</tt>, but in reverse order. For example, if <tt>src</tt> contains the four numbers <style> table.t * {font-family: 'Source Code Pro', monospace !important;} table.t * {border: 1px solid black !important;} table.t {border-collapse: collapse; width: auto !important;} span.spoiler {color: white; border: 1px solid black;} </style> <table class='t'><tr><td>4<td>3<td>17<td>1</table> then your code should fill <tt>dest</tt> with <table class='t'><tr><td>1<td>17<td>3<td>4</table> <b>Note:</b> the program will read the array size <tt>n</tt> and <tt>src</tt> from input. But the input and output are done already for you. <p><b>Hint</b> (hover to reveal): <span class='spoiler'>To get started, note that the element at position <tt>0</tt> should correspond to position <tt>n-1</tt> in the new array.</span>
Epilogue html markup shown when solved	remove
Public permissions	remove
Remarks Comments, history, license, etc.	remove
Engine
Choices json list of string, bool pairs e.g. `[["good", true], ["bad", false]]`
Correct answer
Template / Reference solution
Template / Reference solution	#include <iostream> #include <cmath> using namespace std; int main() { // read the input int n; cin >> n; int src[100]; // declare an array, max size 100 for (int i = 0; i < n; i++) cin >> src[i]; // read elements of src from input // declare dest array \[ REDACTED ]\ // copy from src to dest, but in reverse order \[ REDACTED ]\ // output dest to check it for (int i = 0; i < n; i++) cout << dest[i] << " "; return 0; }
Java test suite See manual
C++ test suite json list of stdin/args tests e.g. `[{"stdin":"hi", "args":["4", "5"]}, {"stdin":"noargs"}]` to just run once with no input use `[{}]`	[ {"stdin": "4\n1 17 3 4"}, {"stdin": "5\n90210 2014 103 11 6"}, {"stdin": "6\n4 8 15 16 23 42"}, {"stdin": "10\n4 1 6 9 6 7 1 1 1 1"} ]
C++ test suite See manual
Forbidden substrings json list of strings e.g. `["for","while"]`	remove
Solution visibility	remove
Java imports json list of importables e.g. `["java.util.*"]`	remove
Override Java classname else defaults to websheet name	remove
Dependent on other websheets? json list of websheet names in this folder e.g. `["DataStructure"]`	remove
Is example? i.e., just a demo	remove
Add compiler flag(s) json list of flags e.g. `["-Wno-unused-variable"]`	remove
Remove default compiler flag(s) json list of flags see default_cppflags e.g. `["-Wno-write-strings"]`	remove

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