How do I write a program with one dimension array and include it in a txt file?

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I have to write a program using one dimensional array with random elements that have the size of m (m is taken from the keyboard). The value of the array must be written in a txt file. How do I do that?

What I have tried:

i have tried to create the array but i can't.

Posted 22-May-21 5:55am

Hoàng Linh Chi Vũ

Updated 22-May-21 6:16am

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Patrice T 22-May-21 12:12pm

Show your work.

2 solutions

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Richard MacCutchan · Answer 1 · 2021-05-22T06:03:00

Solution 1

C++

int m;
scanf("%d", &m);
int array[m]; // create a one-dimensional array of 21 integers
// from here you can create a loop that adds randome values to each element

Posted 22-May-21 6:03am

Richard MacCutchan

Updated 22-May-21 6:15am

v2

Comments

Patrice T 22-May-21 12:13pm

"that have the size of m (m is taken from the keyboard)"
It is dynamic size.

Richard MacCutchan 22-May-21 12:15pm

Thank you, fixed.

Patrice T 22-May-21 12:22pm

my 5

Rick York · Answer 2 · 2021-05-22T06:16:00

Solution 2

Here is documentation for some functions that could be useful for this assignment :

calloc - C++ Reference[^]
rand - C++ Reference[^]
fopen - C++ Reference[^]
fprintf - C++ Reference[^]

I recommend that you read all of those pages and pay careful attention to the sample code.

Posted 22-May-21 6:16am

Rick York

Updated 22-May-21 6:18am

v2