/warn google play promotion

hi, how can i validate against the characters such as alphabet in the code below

#include <iostream> #include <string> #include <cctype> //alphabet character validation using namespace std; int main () { int num; string rom_num; cout« "Roman Numeral Converter"«endl; cout «"\nEnter Number ( 1- 10 )"«endl; cin » num; while (( num < 1 )|| (num > 10)) //|| ( num == char( num ))) { cout «"\nEnter number between range of 1 and 10\n"«endl; cin » num; } switch ( num ) { case 1: { rom_num = " I "; cout «"\nThe roman numeral is "« rom_num«endl; } break; case 2: { rom_num = " II "; cout «"\nThe roman numeral is "« rom_num«endl; } break; case 3: { rom_num = " III "; cout «"\nThe roman numeral is "« rom_num«endl; } break; case 4: { rom_num = " IV "; cout «"\nThe roman numeral is "« rom_num«endl; } break; case 5: { rom_num = " V "; cout «"\nThe roman numeral is "« rom_num«endl; } break; case 6: { rom_num = " VI "; cout «"\nThe roman numeral is "« rom_num«endl; } break; case 7: { rom_num = " VII "; cout «"\nThe roman numeral is "« rom_num«endl; } break; case 8: { rom_num = " VIII "; cout «"\nThe roman numeral is "« rom_num«endl; } break; case 9: { rom_num = " IX "; cout «"\nThe roman numeral is "« rom_num«endl; } break; case 10: { rom_num = " X "; cout «"\nThe roman numeral is "« rom_num«endl; } break; } return 0; }

Hloo🙌

#include<iostream> #include<chrono> #include<random> #include<cstdlib> #include<vector> #include<fstream> #include<stdint.h> #include<algorithm> using namespace std; using namespace std::chrono; int found=0; int notfound; double ltimex = 0; double lavgtime = 0; double btimex = 0; double bavgtime = 0; float comparison=0; float position=0; int linearsearch(vector<int> a, int key, float &position){ //linear search int j; for(j=1; j<a.size(); j++){ if(key==a[j]){ position = j; found++; break; } } if(position == j){ return position; } else { notfound = -1; return notfound; } } int binarysearch(vector<int>a, int first, int last, int key, float &comparison){ //binary search int l=a[first]; int r=a[last]; if (r >= l) { int mid = l + (r - l) / 2; comparison++; if (a[mid] == key) return mid; if (a[mid] > key) return binarysearch(a, l, mid - 1, key, comparison); return binarysearch(a, mid + 1, r, key, comparison); } return -1; } int main(){ int i,j,l; srand(time(0)); for(i=120; i<=3600; i=i+120){ vector<int>a; for(j=0; j<100; j++) //loop for test case, 100 { for(int k=1; k<=i-1; k++){ int z = rand()%i+100; a.push_back(z); } int key = rand()%i+100; sort(a.begin(), a.end()); //time functions. //linear search auto start = high_resolution_clock::now(); linearsearch(a,key, position); auto stop = high_resolution_clock::now(); ltimex = duration_cast<microseconds>(stop - start).count(); lavgtime = lavgtime + ltimex; // //binary search auto bstart = high_resolution_clock::now(); binarysearch(a,0, i,key, comparison); auto bstop = high_resolution_clock::now(); btimex = duration_cast<microseconds>(bstop - bstart).count(); bavgtime = bavgtime + btimex; } comparison = comparison/100; position = position/100; cout << "\nAverage Time taken by linear function: "<< lavgtime << " microseconds"; cout << "\nAverage Time taken by binary function: "<< bavgtime << " microseconds"; ofstream fout; fout.open("data.csv", ios::out | ios::app); while (fout) { if (position != -1) fout<<i<<","<<lavgtime<<","<<position<<","<<bavgtime<<","<<comparison<<"\n"; //size of array, linear, postion, binary, comparison break; } fout.close(); } return 0; }

I ran the program in gdb mode on ubuntu

0x00007ffff74d69e9 in sysmalloc (nb=nb@entry=1440, av=av@entry=0x7ffff782ec40 <main_arena>) at malloc.c:2321 2321 malloc.c: No such file or directory. returns this error

Hlw

I'm new to lambda and find lambda not easy to read. Do you guys use lambda a lot at work?

Hello guys !

Hello guys !

Hi

Hi

Hi

What is the purpose of function return pointer?

What is the purpose of function return pointer?

Jumping back to the position in the executable before you called the function (aka, resuming to the caller)

I'm new to lambda and find lambda not easy to read. Do you guys use lambda a lot at work?

I do use them a lot. Having a readable indentation is very important there

I'm new to lambda and find lambda not easy to read. Do you guys use lambda a lot at work?

Using std::algorithms without lambdas is a pain in the ass

I'm new to lambda and find lambda not easy to read. Do you guys use lambda a lot at work?

It's pretty simple actually, especially after knowing implementation or details. However, it's not much used but a good to have feature.

I'm new to lambda and find lambda not easy to read. Do you guys use lambda a lot at work?

It's also pretty useful as a callback function. You know, if you omit access operator (leave square brackets empty) it acts like a function.

Whats the difference b/w these ?

Hey guys, I am new here... Is there anyone who can help me to make a program. I have to make a program that will sort the ".csv " data from the file which will store Names and percentage of the candidates using "qsort" and that program will have DMA(Dynamic).

Sorry for my bad English

I don't know any thing about C language

Please help me out

Please help me out

Read

What to read bro ???

What to read bro ???

The original Dennis M Ritchie book.

I need to buy it ???

I need to buy it ???

No

You can read the second edition pdf online search for it

I have the whole book printed and binded actually xD

Please bro can you send me the link !!! 😅😅😅

Please bro can you send me the link !!! 😅😅😅

Duckduckgo it yourself doesn't matter which link. Just make sure its the second edition

Should say ANSI C in the cover

Ok bro thanx

I got it

Read the rules, please

I got it

Or you can advance to 21 century and use Web😉 Something like https://www.cprogramming.com/tutorial/c-tutorial.html

Or you can advance to 21 century and use Web😉 Something like https://www.cprogramming.com/tutorial/c-tutorial.html

Books are essentials in the 21st century, too

Books are essentials in the 21st century, too

Why do you need to kill trees when you can have same info in digital format?

Why do you need to kill trees when you can have same info in digital format?

That's why I always suggest libraries

Or ebooks 🤷‍♂

Why do you need to kill trees when you can have same info in digital format?

You know that you need power to view that eBook so coal is burnt to show that?

You know that you need power to view that eBook so coal is burnt to show that?

That, too. Everything has its good and bad side Kinda it, though

You know that you need power to view that eBook so coal is burnt to show that?

No, I live in a country with majority of electricity from nuclear power 😜

No, I live in a country with majority of electricity from nuclear power 😜

Russia?

In a majority of budget split lol

No, I live in a country with majority of electricity from nuclear power 😜

And that device you watch it on has came from where?

Why does the memory of 4GB ram utilize only 2GB instead of 4GB?

what?

What the hell ?

Why does the memory of 4GB ram utilize only 2GB instead of 4GB?

are you talking about x32?

are you talking about x32?

I am not sure it is x32 or x64

I tried to find out on Google but failed to do so...

hello?

welcome

ty

welcome

Thx.

hello?

Hi

Thx.

look, i have a doubt with my c code in one specific part, the thing is that i am spanish so the code is already in spanish but, the trouble is on one character so maybe you could find what is not working properly

should i send the code?

look, i have a doubt with my c code in one specific part, the thing is that i am spanish so the code is already in spanish but, the trouble is on one character so maybe you could find what is not working properly

if it’s large enough, use pastebin.com

if it’s large enough, use pastebin.com

yeah i already have it in a .txt file

hope that you guys could help me; at the end of the code there is a part which is alumno=f, so my question is, why when i compile it the value of alumno is 106 when it could not be bigger than 5 because 'f' is the variable of the (for structure) and it has been initialized f=0.

yeah i already have it in a .txt file

We don't want a .txt file, we want a pastebin/compiler explorer link

Ramón T: https://pastebin.com/TW4bYMax

that´s it

i was trying to send the link but i couldn´t

i was trying to send the link but i couldn´t

It's a measure to prevent spam

ah okay

francisco eres español?

Sí, but this is an English only group

ok then

That's an Spanish group

ty so much Fran

Chm....

That's an Spanish group

Whatever

I'm new to lambda and find lambda not easy to read. Do you guys use lambda a lot at work?

It's common stuff in functional programming