It could be a simple if statement... So let us say your string is a = "ATTA", check it using if (a[i]) where i is your variable in the for loop and if you see T, replace it with A and else replace it with T. replacing is simply saying a[i] = 'T' or whatever you want to replace it with.

I tried, but when "A" become "T", the function turn "T" into "A" and "A" into "T". It never end.

I tried, but when "A" become "T", the function turn "T" into "A" and "A" into "T". It never end.

Don't check the same location and you're probably not replacing the letter you're adding to the string. There is another way to do it, where you could add to the string if the initial string is empty.

I tried, but when "A" become "T", the function turn "T" into "A" and "A" into "T". It never end.

You can declare another empty string and add to it.

I tried, but when "A" become "T", the function turn "T" into "A" and "A" into "T". It never end.

Simple example would be #include <iostream> using namespace std; int main() { string X = "TATTA"; for (int i = 0; i<= X.length()-1; i++) { if (X[i] == 'T') X[i] = 'A'; else X[i] = 'T'; } cout<<X; }

Simple example would be #include <iostream> using namespace std; int main() { string X = "TATTA"; for (int i = 0; i<= X.length()-1; i++) { if (X[i] == 'T') X[i] = 'A'; else X[i] = 'T'; } cout<<X; }

wow never thought about that, very nice explanation. Thank you.

Any one teach me how to add a two number 😜😜😜😜

im sorry im not a c or c++ developer but i just wanna ask a question is there anyway to convert .fmx oracle forms file type to .fmb

int a,b,c,d,e,f,g; printf("Enter 7 numbers separated by space:\n"); scanf("%d %d %d %d %d %d %d", &a,&b,&c,&d,&e,&f,&g); int x=a + b % (int)((float)c / (float)d) % e * f - g; printf("%d", x);

An electricity board charges the following rates for the use of electricity: For the first 200 units; 80 P per unit For the next 100 units; 90 P per unit Beyond 300 units; Rs. 1 per unit All users are charged a minimum of Rs. 100 as meter charge. If the total amount is more than Rs. 400, then an additional surcharge of 15% of total amount is charged. Write a program to read the names of users and number of units consumed and printout the charges with names

An electricity board charges the following rates for the use of electricity: For the first 200 units; 80 P per unit For the next 100 units; 90 P per unit Beyond 300 units; Rs. 1 per unit All users are charged a minimum of Rs. 100 as meter charge. If the total amount is more than Rs. 400, then an additional surcharge of 15% of total amount is charged. Write a program to read the names of users and number of units consumed and printout the charges with names

how to solve

int a,b,c,d,e,f,g; printf("Enter 7 numbers separated by space:\n"); scanf("%d %d %d %d %d %d %d", &a,&b,&c,&d,&e,&f,&g); int x=a + b % (int)((float)c / (float)d) % e * f - g; printf("%d", x);

thankyou

I have been getting an error in the last line of this program

#include <stdio.h> #include <stdlib.h> struct listNode{ int vertexNo; struct listNode *next; }; struct Graph{ int v; int e; struct listNode *adj; }; struct Graph *adjListOfGraph(){ int i , x, y; struct listNode *temp=(struct listNode*) malloc(sizeof(struct listNode)); struct listNode *t; struct Graph *g = (struct Graph*) malloc(sizeof(struct Graph)); printf("Enter the number of vertices and edges:\n"); scanf("%d%d",&g->v,&g->e); g->adj=(struct listNode*) malloc(sizeof(struct listNode)*g->v); for(i=0;i<g->v;i++){ g -> adj[i].vertexNo = i; g -> adj[i].next = g -> adj+i; } for(i=0;i<g->e;i++){ printf("Enter the pair of vertices connecting the edges:\n"); scanf("%d%d",&x,&y); temp->vertexNo=y; temp->next=g->adj[x]; } }

Its showing .....a value of type "struct listNode" cannot be assigned to an entity of type "struct listNode *"....please if someone could help

Its showing .....a value of type "struct listNode" cannot be assigned to an entity of type "struct listNode *"....please if someone could help

why are you using structs, may be c++ classes or STL be better

why are you using structs, may be c++ classes or STL be better

I have been studying data structure..

C

Adjacent list representation of graph..

Can anyone make an interpreter in c programming language??? Please ping me asap

Hi, ive been trying to create the linux ls -R functionality that recursively lists directories using c, i have made some progress but i’ve been stuck on some aspects. I’ll paste the code below, i’d appreciate it if anyone can help. thanks

if (list_all == false && list_long == false){ char recursion_buf[512]; if (dir->d_type == DT_DIR){ if (strcmp(dir->d_name, ".") == 0 || strcmp(dir->d_name, "..") == 0) continue; printf("%s/%s\n", dirname, dir->d_name); snprintf(recursion_buf, sizeof(recursion_buf), "%s/%s", dirname, dir->d_name); list_dir(recursion_buf, list_long, list_all, recursive); } printf("%s\n", dir->d_name);

if (list_all == false && list_long == false){ char recursion_buf[512]; if (dir->d_type == DT_DIR){ if (strcmp(dir->d_name, ".") == 0 || strcmp(dir->d_name, "..") == 0) continue; printf("%s/%s\n", dirname, dir->d_name); snprintf(recursion_buf, sizeof(recursion_buf), "%s/%s", dirname, dir->d_name); list_dir(recursion_buf, list_long, list_all, recursive); } printf("%s\n", dir->d_name);

feel free to DM me if anyone can help 🙏

how to solve

By programming and using your brain

An electricity board charges the following rates for the use of electricity: For the first 200 units; 80 P per unit For the next 100 units; 90 P per unit Beyond 300 units; Rs. 1 per unit All users are charged a minimum of Rs. 100 as meter charge. If the total amount is more than Rs. 400, then an additional surcharge of 15% of total amount is charged. Write a program to read the names of users and number of units consumed and printout the charges with names

Create a loop going through all the users. Create an amount variable for each user. Add ₹100 to the amount. Read how many units are consumed. If units<=200 then add units*0.80 else add 200*0.80 and units=units-200 If units<=100 then add units*0.90 else add 100*0.90 and units=units-100 Add units*1 If amount>400 then add 0.15*amount Print the amount

Hi family

Hi

why is this simple loop not working? #include <stdbool.h> #include <stdint.h> #include <stdio.h> int main() { int64_t n = 1; while (true) { printf("%lli\n", n *= 2); } }

#include <stdbool.h> #include <stdint.h> #include <stdio.h> // unix (not windows) !!!! #include <unistd.h> int main() { int64_t n = 1; int limit = 1000; while (true) { printf("%ld\n", n *= 2); sleep(1); limit--; if (limit == 0) break; } }

wouldn't using a for loop be easier?

this code looks like as experimental, not serious

Hey everyone, I am trying to setup wxWidgets using MinGW64 and CMake

So far not even a basic empty window application is loading

I have no compilation errors I have compiled wxWidgets from source as a sub_directory

Can anybody help me out?

Fixed, had to disable shared libraries for wxWidgets set(wxBUILD_SHARED OFF) add_subdirectory(wxWidgets)

Hi guys does anyone knows how the Checksum works? (i searched in google and youtube but I got more confused) the only thing I know is something related to ascii value of each char !

where can i learn CMake?

any good resources?

any good resources?

https://cliutils.gitlab.io/modern-cmake/ Idk if this is good resource , but you can check it out.

This seems good thanks

Use recursion

I wana data base mangement pdf

I wana data base mangement pdf

Ask that question in database group, this group is for C/C++

Hi guys does anyone knows how the Checksum works? (i searched in google and youtube but I got more confused) the only thing I know is something related to ascii value of each char !

The simplest way to do CheckSum is to take 4 bytes and XOR it with a key and then take that result and then XOR with next 4 bytes... keep doing that for whole file you'll get a 32 bit checksum.

Hi guys does anyone knows how the Checksum works? (i searched in google and youtube but I got more confused) the only thing I know is something related to ascii value of each char !

Or Check this... https://www.toolbox.com/tech/programming/question/32-bit-checksum-053107/

Excuse me guys i wanna ask for a solution, i have a program here that accept user's input, i want that when the user's input is == 0 , that 0 is undetected(dissapeared), how can i do that? Thanks.

Excuse me guys i wanna ask for a solution, i have a program here that accept user's input, i want that when the user's input is == 0 , that 0 is undetected(dissapeared), how can i do that? Thanks.

Try again explaining, couldn't understand.

I have a program int num; printf("Input Num "); scanf("%d",&num); if (num==0) { num=(deleted by system/not detectable); }

i want the 0 to be not detected by the system

How to check for enter key in c++ ?

If you’re using windows you can use windows.h

And the getasynckey function

https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getasynckeystate

Ok , thank you 👍

If you’re using windows you can use windows.h

For a universal one could I use getc function and then check the value?

You can probably use posix api and you would have to write your own function

Mh got it

I have a program int num; printf("Input Num "); scanf("%d",&num); if (num==0) { num=(deleted by system/not detectable); }

How would this compile?

How would this compile?

that's not the point mate

im asking how can i make the value 0 undetected by system

im asking how can i make the value 0 undetected by system

See no programming language would prefer to introduce bugs in their coding, what you want is a bug to be used in a place where it would get an error.

he is asking if you press enter without entering a number the program exits

basically check if scanf is empty

scanf is a bad function anyways

maybe GNU Readline would help ¯\_(ツ)_/¯

he is asking if you press enter without entering a number the program exits

Oh okay... You can try this... #include <iostream> using namespace std; int main() { string str; while (1) { char a = cin.get(); if (a == '\n') { cout << "Enter key is pressed" << endl; break; } else { str += a; } } cout<<str; return 0; }

Oh okay... You can try this... #include <iostream> using namespace std; int main() { string str; while (1) { char a = cin.get(); if (a == '\n') { cout << "Enter key is pressed" << endl; break; } else { str += a; } } cout<<str; return 0; }

He is using C I think

He is using C I think

don't mind i can adapt

Oh okay... You can try this... #include <iostream> using namespace std; int main() { string str; while (1) { char a = cin.get(); if (a == '\n') { cout << "Enter key is pressed" << endl; break; } else { str += a; } } cout<<str; return 0; }

thank you so much sir, imma try this later

thank you so much sir, imma try this later

You should learn about dynamic allocation and pointers

They’re fun

aight noted

did array categorized as pointers?

He is using C I think

#include <stdio.h> #include <string.h> int main(void) { char str[10]; while(1) { char a = getchar(); if (a == '\n') { printf("Enter key is pressed\r\n"); break; } else strncat(str,&a,1); } printf("%s\r\n",str); return 0; }

#include <stdio.h> #include <string.h> int main(void) { char str[10]; while(1) { char a = getchar(); if (a == '\n') { printf("Enter key is pressed\r\n"); break; } else strncat(str,&a,1); } printf("%s\r\n",str); return 0; }

tested this and it always says "Enter key is pressed"

tested this and it always says "Enter key is pressed"

If you press enter... yes.

If you want it to be empty check for empty.

he want's empty

if scanf is empty exit

carriage return hehe

he want's empty

#include <iostream> using namespace std; int main() { string str; while (1) { char a = cin.get(); if (a == '\n') { if (str == "") cout << "Enter key is pressed" << endl; break; } else { str += a; } } cout<<str; return 0; }