int __cdecl main(int argc, const char **argv, const char **envp)
{
  int result; // eax
  int v4; // eax
  FILE *Stream; // [esp+0h] [ebp-2Ch]
  unsigned int i; // [esp+4h] [ebp-28h]
  int v7; // [esp+8h] [ebp-24h]
  int Buffer; // [esp+Ch] [ebp-20h] BYREF
  unsigned int v9; // [esp+10h] [ebp-1Ch]
  int v10; // [esp+14h] [ebp-18h]
  char v11[16]; // [esp+18h] [ebp-14h] BYREF
  char v12; // [esp+28h] [ebp-4h]

  puts(::Buffer);
  memset(v11, 0, sizeof(v11));
  v9 = 0;
  v10 = 0;
  v7 = 0;
  do
  {
    v12 = j___fgetchar();
    v9 += v12;
  }
  while ( v12 != 10 && v12 );
  Stream = fopen(FileName, Mode);
  if ( Stream )
  {
    while ( (v7 & 4) == 0 || (v7 & 1) == 0 )
    {
      if ( sub_401279(&Buffer, 1u, 1u, Stream) != 1 )
      {
        puts(aAnErrorOccured);
        return 0;
      }
      v10 += v9 ^ (unsigned __int8)Buffer;
      v11[v7] = v9 ^ Buffer;
      for ( i = 0; i < v9; ++i )
      {
        if ( (v11[v7] & 1) != 0 )
        {
          v11[v7] = (int)(unsigned __int8)v11[v7] >> 1;
          LOBYTE(v4) = v11[v7] | 0x80;
        }
        else
        {
          v4 = (int)(unsigned __int8)v11[v7] >> 1;
        }
        v11[v7] = v4;
      }
      v11[v7++] += 3;
    }
    fclose(Stream);
    if ( v10 == 3530 )
      printf("Congratulations, The password is '%s'", v11);
    else
      puts(aInvalidPasswor);
    result = 0;
  }
  else
  {
    puts(aFailedToOpenEn);
    result = 0;
  }
  return result;
}

C++ Online Compiler

Write, Run & Share C++ code online using OneCompiler's C++ online compiler for free. It's one of the robust, feature-rich online compilers for C++ language, running on the latest version 17. Getting started with the OneCompiler's C++ compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as C++ and start coding!

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
}