If statement C++

If else c++

#include <iostream>
using namespace std;
int main()
{
  int a;
  cin>>a;
  if(a= 0);
  {
    cout<<"a = " << a;
  }
}

int x = 20;
int y = 18;
if (x > y) {
  cout << "x is greater than y";
}

if (20 > 18) {
  cout << "20 is greater than 18";
}

//1
if(condition) {
   statement(s);
}
else {
   statement(s);
}
//2
(condition) ? (true_statement) : (false_statement)

if (condition)
{
	// block of code
}
else if (condition)
{
	// block of code
}
else {
	// block of code
}

bool state = (value > 0) ? true : false;

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