#include <iostream>
#include <vector>
#include <random>
#include <string>

/**
 * @brief Generates a 12-word seed phrase.
 *
 * This function generates a 12-word seed phrase by randomly selecting words from a predefined word list.
 *
 * @return Returns a vector of strings representing the 12-word seed phrase.
 */
std::vector<std::string> generateSeedPhrase() {
    // Predefined word list
    std::vector<std::string> wordList = {
        "apple",  "elephant", "fish", "grape", "horse", "ice cream", "jelly", "kiwi", "lemon",
        "abandon", "ability", "able", "about", "above", "absent", "absorb", "abstract", "absurd", "abuse",
        "caught", "moon","only","code","engage","drama","cabin","small","exhibit","carry","young","service",
        "sleep", "skill", "account", "art","pink","kite","panel","net","fatal","pair","renew","buffalo","stadium",
        "black","sunset","slide","deposit","detail", "bulk", "sun", "program", "claim", "trigger", "cousin","buzz" , "machine",
        "fox","open","paper","between","fuel","hunt","equip","hedgehog","mosquito","paddle","camp","raven","pepper","sort","calm",
        "ridge","actor","sniff","power","ball","model","nerve","wether","spawn","accuse","genuis","forward","episode","ethics","blind","dinner",
        "gravity","bunker","around", "token", "garage","furnace","toddler","genuine","eye","season","label","motor","obvious","federal","quit","gentle","group",
        "quote","egg","toy","april","decorate","maze","also","front","joke","news","innocent","equal","build","laundry","lounge",
        "width","velvet","midnight","loyal","unhappy","betray","salute","gun","mango","fire","giraffe","multiply","fabric","deny","pupil","any","entire","act","tilt","dial",
        "banana","burger","roast","flower","assult","exite","swap","issue","say","return","bread", "pear", "south","donkey","involve","example","project","snake","chief","wagon","jacket","approve","negative","custom","since","castle",
        "little","trophy","naive","vintage","wage","differ","crop","faith","vacant","trash","diesel","shed","monster","engine","estate","crouch","child", "way","earn","tree","scorpion","trap",
        "media","copy","van","mouse","enjoy","queistion","scatter","fortune","empty","warm","better","iron","flame","survey","weasel","spend","zoo","impose","can","peasant","erosion","street","inform","toilet","front","air","law",
        "chimney","attack","doll","fade","file","gasp","doctor","away","hill","divert","embark","employ","effort","bus","claw","badge","frawn","filter","dumb","bright","arm","dignity","glad","capable","blur","basic","endorse","cannon","bridge","attitude","fringe","ankle","cable","glide","blue",
       "ecology","blanket","energy","bring","amount","dog","baby","assist","gesture","enrich","diagram","drop","flip","alien","found","conduct","collect","feel","club","acoustic","father","already","clinic","great","coil","garlic","dad","cram",
      "fish","holiday","cactus","anxiety","essay","dinasour","goose","clump","core","bomb","depth","consider","box","adapt","agent","degree","fun","ask","exchange","cruise","arctic","ceiling","garbage","dizzy","august","eyebrow","exotic","cash",
      "dismiss","harvest","conect","bless","comfort","asset","couple","despair","excess","arque","cart","artwork","barely","divide","dove","eternal","acquire","hen","chieken","arena","affair","force","armed","glass","caution","curtain","grape","fly","have","extra","because","body","advice",
      "dry","gaze","hip","dust","heart","crack"
    
    };

    // Random number generator
    std::random_device rd;
    std::mt19937 gen(rd());
    std::uniform_int_distribution<> dis(0, wordList.size() - 1);

    // Generate the seed phrase
    std::vector<std::string> seedPhrase;
    for (int i = 0; i < 12; i++) {
        int index = dis(gen);
        seedPhrase.push_back(wordList[index]);
    }

    return seedPhrase;
}

/**
 * @brief Checks the balance of the seed phrase.
 *
 * This function checks the balance of the seed phrase by performing some balance checking logic.
 * In this example, the function simply prints the seed phrase and a message indicating the balance.
 *
 * @param seedPhrase The seed phrase to check the balance of.
 */
void checkBalance(const std::vector<std::string>& seedPhrase) {
    // Print the seed phrase
    std::cout << "Seed Phrase: ";
    for (const std::string& word : seedPhrase) {
        std::cout << word << " ";
    }
    std::cout << std::endl;

    // Perform balance checking logic
    // In this example, we assume the balance is always positive
    std::cout << "Balance: Positive" << std::endl;
}

/**
 * @brief Main entry point of the program.
 *
 * Generates a 12-word seed phrase and checks its balance.
 *
 * @return Returns 0 to indicate successful execution.
 */
int main() {
    // Generate the seed phrase
    std::vector<std::string> seedPhrase = generateSeedPhrase();

    // Check the balance of the seed phrase
    checkBalance(seedPhrase);

    return 0;
} 

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Read inputs from stdin

OneCompiler's C++ online compiler supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample program which takes name as input and print your name with hello.

#include <iostream>
#include <string>
using namespace std;

int main() 
{
    string name;
    cout << "Enter name:";
    getline (cin, name);
    cout << "Hello " << name;
    return 0;
}

About C++

C++ is a widely used middle-level programming language.

  • Supports different platforms like Windows, various Linux flavours, MacOS etc
  • C++ supports OOPS concepts like Inheritance, Polymorphism, Encapsulation and Abstraction.
  • Case-sensitive
  • C++ is a compiler based language
  • C++ supports structured programming language
  • C++ provides alot of inbuilt functions and also supports dynamic memory allocation.
  • Like C, C++ also allows you to play with memory using Pointers.

Syntax help

Loops

1. If-Else:

When ever you want to perform a set of operations based on a condition If-Else is used.

if(conditional-expression) {
   //code
}
else {
   //code
}

You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.

2. Switch:

Switch is an alternative to If-Else-If ladder.

switch(conditional-expression){    
case value1:    
 // code    
 break;  // optional  
case value2:    
 // code    
 break;  // optional  
......    
    
default:     
 code to be executed when all the above cases are not matched;    
} 

3. For:

For loop is used to iterate a set of statements based on a condition.

for(Initialization; Condition; Increment/decrement){  
  //code  
} 

4. While:

While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.

while (condition) {  
// code 
}  

5. Do-While:

Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.

do {  
 // code 
} while (condition); 

Functions

Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity. Function gets run only when it is called.

How to declare a Function:

return_type function_name(parameters);

How to call a Function:

function_name (parameters)

How to define a Function:

return_type function_name(parameters) {  
 // code
}