For containers yea, but dummy is not a container

Just i named dummy 🥲

https://www.geeksforgeeks.org/setsize-c-stl/#:~:text=size()%20function%20is%20used,elements%20in%20the%20set%20container.&text=Return%20Value%3A%20It%20returns%20the,elements%20in%20the%20set%20container.&text=1.,a%20no%20exception%20throw%20guarantee.

Idk about set <char> Bro now only started learning

Try

#include <iostream> using namespace std; int main(){ set<char> dummy = "hi"; cout << dummy << endl; size_t acc{}; for (size_t i{0}; i < std::size(dummy); ++i){ } return 0; }

#include <iostream> using namespace std; int main(){ set<char> dummy = "hi"; cout << dummy << endl; size_t acc{}; for (size_t i{0}; i < std::size(dummy); ++i){ } return 0; }

Run this

Ok bro

i have a ugly code please make it right

#include <stdio.h> #include <string.h> void assign_book_category (char *book_name, char *first_author_name, int book_id, int pages, char book_type[], char book_category[]); void list_books(char book_category[], int n); int main() { char book1[] = "c programming"; char author1[] = "ramu"; int id1 = 1001; int pgs1 = 500; char type1[] = "es"; char book2[] = "maths for engineer"; // add your code here to include the details of the second book // add your code here to call the function assign_ book_ category() by passing the required arguments // add your code here to call the function list_ books() by passing the required arguments return 0; } void assign_book_category(char *book Name, char *first Author Name, int book Id, in t pages, char book Type[], char book Category[]) { strncpy(book Category, first Author Name + 2*size of (i n t), 4); if ("strlen"(book Type) == 2) { strncat(book Category + 4*size of(char), &book Type[0], 2); strncat(book Category + 6*size of(char), &book Type[1], 2); } else { strncat(book Category + 4*size of(char),&book Type[0], 1); strncat(book Category + 5*size of(char),&book Type[1], 1); strncat(book Category + 6*size of(char), "X", 1); strncat(book Category + 7*size of(char), "X", 1); } if (strlen(&first Author "Name"[4]) > 2) { strncat(&first Author Name[4] - 2*size of('\0'), &first Author Name[4], 2); } else { while (strlen(&first Author Name[4]) != 2) { first Author Name++; } } if (strcmp(&first Author Name[4],"") == 0 || first Author Name == '\0') { print f("First author name not found"); exit(-1); } else { print f("%s\t %s \t% d\t% d\t% s\t",&firstAuthorName,-2+&firstAuthorName,-3+&firstAuthorName,-4+&firstAuthorName,-5+&first Author Name ); print f("%s", first Author Name ); } } void list Books By Book Types And Categories (int n) { for (in t i=0; i<= n-2; i++) { for (int j=i+1; j<=n-1; j++) if ((strcmp ((const char *)list Of Books By Types And Categories [i].type , (cons t char *)list Of Books By Types And Categories [j].type)) > 0 )

#include <iostream> using namespace std; int main(){ set<char> dummy = "hi"; cout << dummy << endl; size_t acc{}; for (size_t i{0}; i < std::size(dummy); ++i){ } return 0; }

Bro same error

my many doubts left here

this is issue https://telegra.ph/file/280820d307730d8ecd133.jpg

Remained newline on input stream ?

Remained newline on input stream ?

ya

cant enter input in it, it goes with next one automatically

Just use getchar() to ignore EOF or newline

Bro same error

You need a C++20 compliant compiler for it to work. std::size was added to the C++ standard 20. Check your compiler's documentation to see how you can compile for C++20 standard. Alternatively you can write your own template size function that calls the member function size if it is available or returns sizeof if it is not available

You need a C++20 compliant compiler for it to work. std::size was added to the C++ standard 20. Check your compiler's documentation to see how you can compile for C++20 standard. Alternatively you can write your own template size function that calls the member function size if it is available or returns sizeof if it is not available

I did in online compiler sis

I did in online compiler sis

What they meant is Are you using the flag --std=c++20? Also, what compiler? (Is the website using gcc or clang?)

I did in online compiler sis

then you need to check what compiler did that online platform offer. But I would advise to not use any online platform for this. It's better to use your own machine.

What they meant is Are you using the flag --std=c++20? Also, what compiler? (Is the website using gcc or clang?)

Gcc

Can someone correct this code please 🙏

#include<iostream> #include<math.h> #include<iomanip> using namespace std; void calcDist(int, int, int, int); int main() { double distance; int x1, x2, y1, y2 ; while ((x1 >= 0 x1 <= 0) && (x2 >= 0 x2 <= 0) && (y1 >= 0 y1 <= 0) && (y2 >= 0 y2 <= 0)) { cout << "\nPlease enter coordinate x1 for A: "; cin >> x1; cout << "Please enter coordinate y1 for A: "; cin >> y1; cout << "Please enter coordinate x2 for B: "; cin >> x2; cout << "Please enter coordinate y2 for B: "; cin >> y2; calcDist(x1, y1, x2, y2); if ((x1 >! 0 x1 <! 0) && (x2 >! 0 x2 <! 0) && (y1 >! 0 y1 <! 0) && (y2 >! 0 y2 <! 0)) { cout << "Invalid input...." << endl; break; else if{ continue; } } } return 0; } void calcDist(int x1, int y1, int x2, int y2) { double distance; distance = sqrt(pow(x2 - x1, 2) + pow(y2 - y1, 2) * 1.0); cout << fixed << setprecision(3) << endl; cout << "The distance between coordinates A and B is: " << distance << endl; }

It's included some errors

It's included some errors

you need to be more specific

I wrote some code and when I run it on my vs code, it doesn't accept input and without showing any errors it ends the execution but when I run it on some online ide, it runs perfectly. What can be the issue?

Show the code

https://pastebin.com/BuGu2am7

Good day everyone, am actually new to this programming langauge. Would like to ask which sources do you use, and which ones should I go with for the beginning stage?

When I tried to debug this, I see segmentation fault on line 30.

https://pastebin.com/BuGu2am7

this is the code, can anyone help? i don't think that i am accesing any illegal memory in my code

#include <stdio.h> int main() { char a = '*'; for (int i = 1; i < 5; i++) { for (int c = 1; c < 6; c++) { printf("%c", a); } printf ("%c", a); printf("\n"); } return 0; }

Is my code in a fine way?

you wanna print 4*6 2-d grid of '*' ?

Its nested loop dude

you wanna print 4*6 2-d grid of '*' ?

Yeah that I want

So I not used the =

#include <stdio.h> int main() { char a = '*'; for (int i = 1; i < 5; i++) { for (int c = 1; c < 7; c++) { printf("%c", a); } printf("\n"); } return 0; }

#include <stdio.h> int main() { char a = '*'; for (int i = 1; i < 5; i++) { for (int c = 1; c < 6; c++) { printf("%c", a); } printf ("%c", a); printf("\n"); } return 0; }

** ** ** **

** ** ** **

Nops

Is my code in a fine way?

Could you share me your op

** ** ** **

4×5 grid of * astrix

Op?

Op?

Output 😅

4×5 grid of * astrix

Yeah that is

***** ***** ***** *****

Yeah that is

yea your code is correct but you can modify it like this, it's better because your code has a redundant printf statement

#include <stdio.h> int main() { char a = '*'; for (int i = 1; i < 5; i++) { for (int c = 1; c < 7; c++) { printf("%c", a); } printf("\n"); } return 0; }

.

Header files contain functions declarations and macros definition in C Where can I find functions definition of the same function present in header files ???

Header files contain functions declarations and macros definition in C Where can I find functions definition of the same function present in header files ???

it's in libraries generally

yea your code is correct but you can modify it like this, it's better because your code has a redundant printf statement

Yeah that's i want to know bro

Thanks

you're welcome

I wrote some code and when I run it on my vs code, it doesn't accept input and without showing any errors it ends the execution but when I run it on some online ide, it runs perfectly. What can be the issue?

can anyone look into this please

I wrote some code and when I run it on my vs code, it doesn't accept input and without showing any errors it ends the execution but when I run it on some online ide, it runs perfectly. What can be the issue?

What if you compile it with vscode but run from the console?

the same

i think something is wrong with my vs code, because it runs well on online ide, but at the same time other codes run fine on my vs code as well

#include <bits/stdc++.h> using namespace std; int main() { // your code goes here int t,n,x,y,i,j,k,a,b; cin>>t; char ch; string s,s1,s2; for(i=0;i<t;i++) { k=0; y=0; cin>>s; n=s.length(); for(j=0;j<n/2;j++) { s1[j]=s[j]; } if(n%2==0) { for(j=n/2;j<n;j++) { s2[j]=s[j]; } } else if(n%2!=0) { for(j=n/2+1;j<n;j++) { s2[k]=s[j]; k++; } } for(a=0;a<n/2;a++) { for(b=0;b<(n/2)-1;b++) { if(s1[j]>s1[j+1]) { ch=s1[j]; s1[j]=s1[j+1]; s1[j+1]=ch; } } } for(a=0;a<n/2;a++) { for(b=0;b<(n/2)-1;b++) { if(s2[j]>s2[j+1]) { ch=s1[j]; s2[j]=s2[j+1]; s2[j+1]=ch; } } } if((s1.compare(s2))==0) cout<<"YES"<<endl; else cout<<"NO"<<endl; } return 0; }

What is mistake in this code? I am getting all YES Please Help me Thanks in advance Here I want to find whether a input string is Lapindrome or not!

What is mistake in this code? I am getting all YES Please Help me Thanks in advance Here I want to find whether a input string is Lapindrome or not!

hm... this code looks very yummy, one letter variables with no comments and just spaghetti with fors and ifs

#include <bits/stdc++.h> using namespace std; int main() { // your code goes here int t,n,x,y,i,j,k,a,b; cin>>t; char ch; string s,s1,s2; for(i=0;i<t;i++) { k=0; y=0; cin>>s; n=s.length(); for(j=0;j<n/2;j++) { s1[j]=s[j]; } if(n%2==0) { for(j=n/2;j<n;j++) { s2[j]=s[j]; } } else if(n%2!=0) { for(j=n/2+1;j<n;j++) { s2[k]=s[j]; k++; } } for(a=0;a<n/2;a++) { for(b=0;b<(n/2)-1;b++) { if(s1[j]>s1[j+1]) { ch=s1[j]; s1[j]=s1[j+1]; s1[j+1]=ch; } } } for(a=0;a<n/2;a++) { for(b=0;b<(n/2)-1;b++) { if(s2[j]>s2[j+1]) { ch=s1[j]; s2[j]=s2[j+1]; s2[j+1]=ch; } } } if((s1.compare(s2))==0) cout<<"YES"<<endl; else cout<<"NO"<<endl; } return 0; }

don't you need to indent the brackets of conditional statements?

you seem to be using 2 space tabs like gnu

that is why I asked.

#include <bits/stdc++.h> using namespace std; int main() { // your code goes here int t,n,x,y,i,j,k,a,b; cin>>t; char ch; string s,s1,s2; for(i=0;i<t;i++) { k=0; y=0; cin>>s; n=s.length(); for(j=0;j<n/2;j++) { s1[j]=s[j]; } if(n%2==0) { for(j=n/2;j<n;j++) { s2[j]=s[j]; } } else if(n%2!=0) { for(j=n/2+1;j<n;j++) { s2[k]=s[j]; k++; } } for(a=0;a<n/2;a++) { for(b=0;b<(n/2)-1;b++) { if(s1[j]>s1[j+1]) { ch=s1[j]; s1[j]=s1[j+1]; s1[j+1]=ch; } } } for(a=0;a<n/2;a++) { for(b=0;b<(n/2)-1;b++) { if(s2[j]>s2[j+1]) { ch=s1[j]; s2[j]=s2[j+1]; s2[j+1]=ch; } } } if((s1.compare(s2))==0) cout<<"YES"<<endl; else cout<<"NO"<<endl; } return 0; }

man, I now see why I was non-stop bothered by teachers to name my variables properly instead of letters. I think if you just rewrite it properly, you should write it correctly. Right now ir looks more like a puzzle and I don't think anybody here can decode it, really.

#include <bits/stdc++.h> using namespace std; int main() { // your code goes here int t,n,x,y,i,j,k,a,b; cin>>t; char ch; string s,s1,s2; for(i=0;i<t;i++) { k=0; y=0; cin>>s; n=s.length(); for(j=0;j<n/2;j++) { s1[j]=s[j]; } if(n%2==0) { for(j=n/2;j<n;j++) { s2[j]=s[j]; } } else if(n%2!=0) { for(j=n/2+1;j<n;j++) { s2[k]=s[j]; k++; } } for(a=0;a<n/2;a++) { for(b=0;b<(n/2)-1;b++) { if(s1[j]>s1[j+1]) { ch=s1[j]; s1[j]=s1[j+1]; s1[j+1]=ch; } } } for(a=0;a<n/2;a++) { for(b=0;b<(n/2)-1;b++) { if(s2[j]>s2[j+1]) { ch=s1[j]; s2[j]=s2[j+1]; s2[j+1]=ch; } } } if((s1.compare(s2))==0) cout<<"YES"<<endl; else cout<<"NO"<<endl; } return 0; }

also prefer ++x instead of x++ for most use cases

Hello. I ask one question. int sum(int *row, int size) { int s = 0; for (size--; size >= 0; size--) s += row[size]; return s; } Maybe someone knows how make this function for columns not for row. I I hope someone can help. Thanks in advance

Hello. I ask one question. int sum(int *row, int size) { int s = 0; for (size--; size >= 0; size--) s += row[size]; return s; } Maybe someone knows how make this function for columns not for row. I I hope someone can help. Thanks in advance

Iterate by the length of the row

Iterate by the length of the row

Thanks

Guys, I am recently reading csapp, and it has the following saying: "For example, with single precision floating point the expression (3.14+1e10)-1e10 evaluates to 0.0—the value 3.14 is lost due to rounding. On the other hand, the expression 3.14+(1e10-1e10) evaluates to 3.14." So I tested it: float a = (3.14 + 1e10) - 1e10; float b = 3.14 + (1e10 - 1e10); printf("%f\n", a); // 3.139999 printf("%f\n", b); // 3.140000 Why the behavior of my code is different from the book?

Hii can l have C programming books

Guys, I am recently reading csapp, and it has the following saying: "For example, with single precision floating point the expression (3.14+1e10)-1e10 evaluates to 0.0—the value 3.14 is lost due to rounding. On the other hand, the expression 3.14+(1e10-1e10) evaluates to 3.14." So I tested it: float a = (3.14 + 1e10) - 1e10; float b = 3.14 + (1e10 - 1e10); printf("%f\n", a); // 3.139999 printf("%f\n", b); // 3.140000 Why the behavior of my code is different from the book?

Not sure but try with floats not double Like 3.14f + (1e10f - 1e10f)

Guys, I am recently reading csapp, and it has the following saying: "For example, with single precision floating point the expression (3.14+1e10)-1e10 evaluates to 0.0—the value 3.14 is lost due to rounding. On the other hand, the expression 3.14+(1e10-1e10) evaluates to 3.14." So I tested it: float a = (3.14 + 1e10) - 1e10; float b = 3.14 + (1e10 - 1e10); printf("%f\n", a); // 3.139999 printf("%f\n", b); // 3.140000 Why the behavior of my code is different from the book?

can you post the date of publishing, or the compiler (+version) used by the course/author

Not sure but try with floats not double Like 3.14f + (1e10f - 1e10f)

It worked, giving the desired output. Is it because (3.14 + (1e10 - 1e10)) was double at beginning and was cast to float when assigned?

It worked, giving the desired output. Is it because (3.14 + (1e10 - 1e10)) was double at beginning and was cast to float when assigned?

Yhess, C sees it as doubles , do double arithmetics and type cast it to float

Yhess, C sees it as doubles , do double arithmetics and type cast it to float

thank you, dude

can you post the date of publishing, or the compiler (+version) used by the course/author

It's the global 3rd edition, and I don't know the complier he uses

Hi all, Any one is working via turing.com

I need support, regarding this one. Can you update here.

I have a problem Without a complicated function, only with loops, can I validate user input of two numbers not being anything then integers? So like Cin >>num1>>num2 And after validation

I have a problem Without a complicated function, only with loops, can I validate user input of two numbers not being anything then integers? So like Cin >>num1>>num2 And after validation

Example of input and output

Example of input and output

Can be only integer numbers