what is wrong with this palindrome program in c++? https://onlinegdb.com/eaupEg-sO

what is the disadvantage of using C++ instead of C? why Torvalds and some other people hates C++?

what is the disadvantage of using C++ instead of C? why Torvalds and some other people hates C++?

what is the disadvantage of using C++ instead of C? why Torvalds and some other people hates C++?

if you know how to program in assembly you will appreciate how simple yet powerful C is. try to combine pure C code with assembly then do the same with C++ using it's offered abstractions. later one drives you crazy quickly! and when it comes to memory management abstractions become more painful than useful.

but you can avoid many silly (but harmful) mistakes using C++

you're accessing the string out of bounds at the first iteration of the loop at n[n.size()] for (int i = n.size(); i >= 0; i--) { m+=n[i]; ^^^^^^^ }

#include <iostream> #include <vector> using namespace std; struct Student { int id, age, phone, degrees[6]; string name; }; void add(vector<Student> &a); int main() { vector<Student> students; add(students); } void add(vector<Student> &a) { for (int i = 0; i < 2; i++) { a.push_back(Student()); cout << "id : "; cin >> a[i].id; } }

#include <iostream> #include <vector> using namespace std; struct Student { int id, age, phone, degrees[6]; string name; }; void add(vector<Student> &a); int main() { vector<Student> students; add(students); } void add(vector<Student> &a) { for (int i = 0; i < 2; i++) { a.push_back(Student()); cout << "id : "; cin >> a[i].id; } }

Add iostream.h header files Remove } ";" Make coreect logic and intize proper variable

Hi guys, I'm writing a password checker software in C. I got as far as checking the lenght (minimum 8 char), and it must feature a number, a special carachter and an uppercase letter. So far so good, it's pretty easy to do. The problem is that I want to provide a much stronger service. In fact, usually a password like ImTakingTheTrain1 is weak, but also 1mT4k1ngTh3Tr41n1!, while satisfying previous requirements, it's pretty easy to guess (nowadays...). Therefore, I wanted to provide a service capeble of understanding wether a password is "strong" or "weak". I know I need Machine Learning algorithms. That I can't affors, of course, but maybe there's another way: sending the password to a site (like avast, for istance), and get a bool back on the socket. If it's true, thank it's ok, otherwise I ask for a new password. Can you point me to a tutorial? I searched on youtube but nothing seems to be what I'm looking for, maybe you know something that might help me. Thanks!

Help, i use rand(), and after every run i see "41" unsigned long number; number = rand(); printf("%lu", number);

hye and hello i have a question regarding my assignment about registration and log in system. first off all, the registration coding run very well. but then when i make the log in, it states that users did not registered, even though i have already registered. can someone help me to check the coding ? its 130 ++ lines of coding

never mind sir . thanks

Help, i use rand(), and after every run i see "41" unsigned long number; number = rand(); printf("%lu", number);

Where is srand()? I think you have to check https://www.geeksforgeeks.org/rand-and-srand-in-ccpp/

hye and hello i have a question regarding my assignment about registration and log in system. first off all, the registration coding run very well. but then when i make the log in, it states that users did not registered, even though i have already registered. can someone help me to check the coding ? its 130 ++ lines of coding

Yes it should be n[i-1]. 1. But the thing is even if it is n[i] or n[i-1] if we cout the value of m(palindrome) it outputs the reverse of n(original string) in both cases, how? 2. I changed it to n[i-1] still it shows not a palindrome everytime.

Have you changed the condition as well to i > 0?

how to loop through vector of struct I search on google and I get more errors! This is my struct: struct Student { int id, age, phone, degrees[6]; string name; }; and this my main function: vector<Student> students; for (size_t i = 0; i < 2; i++) { add(students, students.size()); } sort(students.begin(), students.end(), compare); print(students); Now in print function I want to do for each loop!

I want to find sum of each number in [a,b] interval please help me

it seems u have mistake in the loop condition

#include<iostream> #include<cmath> using namespace std; int main(){ int sum=0; long a,b; cin>>a>>b; if (0<=a,b<=pow(2*10,9)) { for(a; a<=b ; ++a){ sum+=a; cout<<sum; } } }

You probably want to print the sum outside of the loop, move it one line down after }

#include<iostream> #include<cmath> using namespace std; int main(){ int sum=0; long a,b; cin>>a>>b; if (0<=a,b<=pow(2*10,9)) { for(a; a<=b ; ++a){ sum+=a; cout<<sum; } } }

Ok I am trying it now

try it

#include<iostream> #include<cmath> using namespace std; int main(){ long sum=0; long a,b; cin>>a>>b; if (0<=a && b<=pow(2*10,9)) { for(; a<=b; a++){ sum+=a; cout << "the sum is: " << sum; } } }

I want to find sum of each number in [a,b] interval please help me

Hm, is there a way of having a piece of non-initialized memory for elements (like std::array<MyType, Size> but not initialized) as part of a class? So if I create my class on a stack, this memory will be taken as part of it. What I want to do with it is basically something like std::array for objects that don't have default constructor (that I also don't construct right away). I can play with union, but that feels too ugly, also I want to be able to work with it as with normal array when it's filled, e.g. pass around like span, not sure if objects that are unions could do that.

My assignment is in cpp, writing a program to control traffic light on a 4 way junction road ,Where equal time intervals of 30 second s allocated to each road there is traffic at all the signals, then the system will work normally by controlling the signals one by one. If there is no traffic near a signal, then the system will skip this signal and will move on to the next one. For example, if there is no vehicle at signal 2, 3 and currently the system is allowing vehicles at signal 1 to pass. Then after signal 1, the system will move on to signal 4 skipping signal 2 and 3. If there is no traffic at all the 4 signals, system will stop at the current signal and will only move on the next signal if there will be traffic at any other signal

Hi guys, I'm writing a password checker software in C. I got as far as checking the lenght (minimum 8 char), and it must feature a number, a special carachter and an uppercase letter. So far so good, it's pretty easy to do. The problem is that I want to provide a much stronger service. In fact, usually a password like ImTakingTheTrain1 is weak, but also 1mT4k1ngTh3Tr41n1!, while satisfying previous requirements, it's pretty easy to guess (nowadays...). Therefore, I wanted to provide a service capeble of understanding wether a password is "strong" or "weak". I know I need Machine Learning algorithms. That I can't affors, of course, but maybe there's another way: sending the password to a site (like avast, for istance), and get a bool back on the socket. If it's true, thank it's ok, otherwise I ask for a new password. Can you point me to a tutorial? I searched on youtube but nothing seems to be what I'm looking for, maybe you know something that might help me. Thanks!

I am new to programming...i am learning programming from YouTube.can you guys suggest me a site where i can get beginner level problems.

To improve space efficiency, you can make 2 bloomfilters of around 4MB each and get around 99.96% confidence if I have not fumbled my math

You can do something better, get the password hash list from https://haveibeenpwned.com/Passwords and store it in a bloomfilter and/or a quotient filter and do cardinality checks on that

#include <stdio.h> #include <stdio.h> int main() { int mpesabalance; printf("Enter mpesabalance"); scanf("%d", &mpesabalance); if (mpesabalance >=500); { printf("dish pizza"); }else if (mpesabalance>=200 && <500); { printf("dish chips"); else { printf("take tea only"); } return 0; }

what's up with the code?

You mean apart from the missing closing brace } for the else if condition and the semicolon at the end of the else if condition?