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Basic Elements of C++.pdf
957.6 KB
this pdf can help you know:-

—> basic c++ program development.
—-> operator precedence
—->casting

and much more..


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which statement has correct pointer and class mixture? for : string *str
Final Results
11%
(str*).legnth();
21%
*str.length();
32%
(*str)—>length();
37%
(*str).length();
0%
none of the above
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1👍1
EvoNext pinned «👥 GROUP FOR PROGRAMMERS -> JOIN»
Forwarded from EvoNext
GREAT OFFER


FOR (12 +1) STUDENTS ONLY‼️

Are you looking for freshman reading materials?

then look at this gift for 💯% free:

- modules

- exams[ mid, final] of different universities

- reference books

- and different materials in voice and videos
.... are some of them.

first semister courses:-

General physics
mathematics for natural
mathematics for social
logic and critical thinking
communicative english
Psychology
Geography


second semister courses:

Emerging
general biology
applied mathematics
programming I
civcs and moral education
economics
anthropology
communicative english II

....much more!


https://t.me/exbost
https://t.me/exbost
share for your friend
https://t.me/exbost
https://t.me/exbost
join learn to code
https://t.me/exbost


TRUST! YOU GONNA LOVE IT!
👍2
Forwarded from Algo programmers
[Forwarded from biru ka]
#include <iostream>
#include <cmath>
#include <cstdlib>
using namespace std;
int mini(int);
int range(int , int);
int Median_arr(int);
int main() {
system("color 3E");
int n;
cout<<"how many numbers the data contains?\n";
cin>>n;

mini(n);
cout<<endl;
Median_arr(n);
return 0;
}




int mini(int x)
{
int dat[x];
cout<<"enter the data:\n";
for(int a = 0; a< x; a++){

cin>> dat[a];
}
cout<<"\n\nyour quantitative data are: ";
for(int a = 0; a< x ; a++)
{
cout<<dat[a]<<" ";
}
int max,min,sum;
int average;
sum = 0;
min = dat[0];
max = dat[0];
for(int i = 0; i< x ; i++)
{
sum =+ i;
if(min>dat[i]){


min = dat[i];
}
if(max<dat[i])
{
max = dat[i];
}

}



cout <<"\nthe minimum value is: "<< min;
cout<<"\nthe maximum value is: "<<max;
cout<<"\nthe range of the data is: "<< range(min, max);


}

int range(int min, int max)
{
int rang;
rang = max - min;
return rang;
}






int Median_arr(int m)
{

int small ,s[m -1],temp;
cout<<"\nenter the data again to sort:\n ";
for(int j= 0; j< m; j++)
{
cin>>s[j];
}

for(int i = 0 ; i<m; i++)
{
small = i;
for(int j = 0; j <m; j++)
{
if(s[j]>s[small])
{
small = j;
temp = s[small];
s[small] = s[i];
s[i] = temp;
}

}

}
cout<<"\n the sorted array is: ";

for(int j = 0; j<m; j++){

cout<<s[j]<<" ";

}


if(m%2!=0)

cout<<"\nthe median is: "<<s[(m)/2];

else
{
double med;
med =(s[(m/2)-1] + s[(m/2)])/2.0;
cout<<"\nthe median: "<< med<<endl;

}



}
👍1
Forwarded from Algo programmers
POINTERS AND CLASSES

1. pointers can be initialized like p = 0 or p = null;

2. when accessing class( struct ) components , using arrow is advisable.

3. The number 0 is the only number that can be directly assigned to a pointer variable

WHAT ARE DYNAMIC VARIABLES??

they are variable created at the time of execution.

the two types of dynamic variables are NEW and DELETE

iii. the new operator has two forms

-& to allocate a single variable
new datatype;


-& to allocate an array of variables

new datatype[intExp];


example :


int *p;
char *q;
int x;

p = &x;
// no new memory is allocated
p = new int; //store allocated memory address

 q = new char[16];


OPERATOR DELETE


we use it to avoid memory leak.

[what is memory leak?]

- It is used to destroy dynamic variables so that memory is reallocated again.

single variable;
delete pointerVariable;

an array;

delete [ ] pointerVariable;


delete p;
delete str;


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channel: be code reader
👍1
//program to print a string n times without using loop
#include <iostream>
#include <cstdlib>
using namespace std;
void iter(int);



int main() {
int n = 10;


iter(n);
return 0;
}

void iter(int y)
{
string s = "name";
if(y==0)
{
exit;
}
else
{

cout <<s<<endl;
iter(y-1);
}
}
👍2
                      #include <iostream>
using namespace std;
int myFun(int);

int main(){
int m;

m = 10;

cout << myFun(m);

return 0;
}

int myFun(int y)
{

if( y == 0 || y == 1 || y == 2 )
{
return 1;
}
else{

return ( y + 1) + myFun( y - 3);
}
}
which if the following can not be a structure memeber?
Anonymous Quiz
16%
another structure
30%
function
14%
array
40%
none
the data elements in the structure is known as what?
Anonymous Quiz
35%
objects
49%
members
14%
data
2%
none of the above
👍2👎2
##" Write a definition for a structure type for records consisting of a person’s
wage rate, accrued vacation (which is some whole number of days), and
status (which is either hourly or salaried). Represent the status as one of
the two char values 'H' and 'S'. Call the type EmployeeRecord.
👍1