What is vector in c++

Let me 🔎 Google that for you: 🔎 what is vector c++

->attend lecture ->practice ->ask doubts

lol lecture

->attend lecture ->practice ->ask doubts

I never tried it Is it cool?

Please I need c++ ebook

THANKS YOU ! Happy to be here

I never tried it Is it cool?

Noh it is school 🤓.

Hello, I just completed a chapter in a programming book, and well I felt I understood everything taught in the chapter. But after completion, I attempted the questions the chapter and the first parts were favourable but moving on, the questions became harder. It took me several hours to complete that very one chapter and I want to know if I should try to go over the chapter to get a better grasp of it.

Anyone help me

Need a help to print thos Pattern

You see every 'i'th row has a cyclicity of 'i+1'

When we start indexing from i=0

Can u make please

In c or cpp or java

Given two non-negative integers A and B, and limits X and Y,find the smallest integer Z which lies between X and Y such that (A&Z).(B&Z) is maximum possible. &=Bitwise product Can anyone help me in this

Can anyone help me in this

const String& operator+(const String&); String operator+(const String&); Here, String is a class and It thorws an error that cant overload functions distinguished by return type alone. why it showing this error and how can I make it happen without error?

okay my bad.

How answer is 433

Hello I am vikas I am new in this group . So you help me for solving my problem

Anyone help Mei in sorting vases

you are passing reference arguments to the function. Here you are assigning the 3 to a , so 3 is put in address of b. therefore value of b is changed to 3 and same happen to a which has 4 in its address and the function return a which is 3 and is assigned to c. So your b is 3, a is 4 and c is 3.

you are passing reference arguments to the function. Here you are assigning the 3 to a , so 3 is put in address of b. therefore value of b is changed to 3 and same happen to a which has 4 in its address and the function return a which is 3 and is assigned to c. So your b is 3, a is 4 and c is 3.

Thanks sir

Tell me how can I solve this

This is my text file

And i have made a program to read this

#include<stdio.h> #include<stdlib.h> int main() { char id[20]; char id2[20]; char name[20]; int basic; int pn; FILE *fptr; fptr = fopen("Edata.txt","r"); fscanf(fptr,"%s %s %d %d ", &name, &id, &pn, &basic); printf("Input ID number: "); scanf("%d", &id2); while(!feof(fptr)) { if(id == id2) { printf("%s %s %d %d ", &name, &id, &pn, &basic); } fscanf(fptr,"%s %s %d %d ", &name, &id, &pn, &basic); } return 0; }

I want to giva id number and display about the other details of that person

Bt my program does not work

Also 1st text file has done by this separate program

#include<stdio.h> #include<stdlib.h> int main() { char id[20]; char name[30]; int basic; //basic salary int pn; // phone number char con; // continue to the loop FILE *fptr; fptr=fopen("Edata.txt","a"); printf("Start getting employee DATA(y/n) :"); scanf("%c", &con); fprintf(fptr," Name ID PhoneNumber Basic salary "); while(con=='y') { printf("Enter Name: "); scanf("%s", &name); printf("Input the Id number: "); scanf("%s", &id); //getting employee's ID number printf("Input the phone number: "); scanf("%d", &pn); //getting employee's phone number printf("Input the basic salary: "); scanf("%d", &basic); //getting employee's basic salary fprintf(fptr,"\n %s %d %d %d",name,id,pn,basic); printf("Getting Another person(y/n) : "); scanf("%s", &con); } fclose(fptr); printf("Thank you very much!!!"); return 0; }

Did you try to compile the code to see the output? Because it's not 39 and it's juste a simple incrementation

Why we use alwayz pointer in declaration of file in C ?

Depend on the length of phone numbers, it is not impossible to save phone numbers in unsigned long integers. It can also be used for sanity check: if the input is a number.

Why we use alwayz pointer in declaration of file in C ?

FILE*?

FILE*?

I have dought that why we use pointer in declaration of file?Why we not use single variable.see all program of files use pointer in it whyyy.?

That's because the f* functions (fopen, fread, fwrite, fclose) need to 1. give you a new FILE (fopen needs to do that) 2. modify the FILE (although you could pass them a FILE like &file, but remember 1.).

I have dought that why we use pointer in declaration of file?Why we not use single variable.see all program of files use pointer in it whyyy.?

To disallow changing struct members

Best Book To Learn C language ?

Best Book To Learn C language ?

Looking for one too

Best Book To Learn C language ?

#cbook

Thank You

Convert decimal number to hex and oct in one line

What is recursion

What is recursion

/warn instant question on join (read the rules)

/warn

Ok

But i want to know recursion in c program

But i want to know recursion in c program

Situation where a function calls itself

@Neko_cpp why the hell do you delete chat

@Neko_cpp why the hell do you delete chat

Because you just spam...

i didn't spam anything

i didn't spam anything

Alright ¯\_ (ツ) _/¯

I need an algorithm not a program

the first link in the google dammit..

Hi! Someone asked where to order ChatBots for Telegram. The guys did it to me. The result is awesome. Who needs contacts I will answer in messages. So that there is no spam

Hi! Someone asked where to order ChatBots for Telegram. The guys did it to me. The result is awesome. Who needs contacts I will answer in messages. So that there is no spam

#ot

Hi Pm is what

Lol

Hi Pm is what

Personal message

In coding line

In coding line

Personal message

Thanks :)

Hi, how do I free up space used by an array in C? Not as in giving it back to the os (free()) but for later reuse in code.

Hi, how do I free up space used by an array in C? Not as in giving it back to the os (free()) but for later reuse in code.

you can just zero it and keep

you can just zero it and keep

But doesn't it still use memory that can't be used by other arrays??

there are some types of allocators which are working like that

But doesn't it still use memory that can't be used by other arrays??

it can’t be unless you use it

there are some types of allocators which are working like that

So I can simply… memset(array, 0, len) to make the space used by array available again to other variables?

So I can simply… memset(array, 0, len) to make the space used by array available again to other variables?

what do you mean “other variables”

Variables that are initialised later

its reserved in a memory, so you can just zero it and initialize again

by initializing I mean not allocating again but setting the values

what we're talking about?

by initializing I mean not allocating again but setting the values

I mean using it by another variable

what we're talking about?

making space used by arrays available to other variables without giving space back to OS

if it belongs to array so it will belong only to that object