C program to Display the truth table for boolean operations

OR GATE:-

AND GATE:-

NOT GATE:-

  // write a program in c to display the truth table for boolean opration.
  // SAAR
  #include<stdio.h>
  #include<stdlib.h>
  // logic for OR gate
      
  int find_OR(int x,int y)
  {
      if(x==1 && y==1)
       return 1;
      if(x==1 && y==0 || x==0 && y==1)
       return 1;
      if(x==0 && y==0)
       return 0;
  }
      
  // logic for find AND
      
  int find_AND(int x,int y)
  {
      if(x==1 && y==1)
       return 1;
      else
       return 0;
  }
      
  // logic for find NOT
      
  int find_NOT(int x)
  {
      if(x==1)
        return 0;
      else
       return 1;
  }
      
  // Driver function 
  
  int main()
  {
      int ch,a,b;
      printf("You have to choose one option from all of them :-\n");
      printf("1. OR\n");
      printf("2. AND\n");
      printf("3. NOT\n");
      printf("4 .exit\n");
      while(1)
      {
          printf("\nEnter your choice\n");
          scanf("%d",&ch);
          switch(ch)
          {
              case 1: printf("Give two input 1 for true and 0 for false\n");
                      scanf("%d%d",&a,&b);
                      printf("Your resultant output is %d",find_OR(a,b));
                      break;
              case 2: printf("Give two input 1 for true and 0 for false\n");
                      scanf("%d%d",&a,&b);
                      printf("Your resultant output is %d",find_AND(a,b));
                      break;
              case 3: printf("Give an input 1 for true and 0 for false\n");
                      scanf("%d",&a);
                      printf("Your resultant output is %d",find_NOT(a));
                      break;
              case 4: exit( 0);
                      
              default: printf("You have entered Wrong key, Please try again\n");
          }
      }
  }

When the above program is executed, it produces following results --

  You have to choose one option from all of them :-
  1. OR
  2. AND
  3. NOT
  4 .exit
  
  Enter your choice
  1
  Give two input 1 for true and 0 for false
  1
  1
  Your resultant output is 1
  Enter your choice
  1
  Give two input 1 for true and 0 for false
  0
  1
  Your resultant output is 1
  Enter your choice
  2
  Give two input 1 for true and 0 for false
  1
  0
  Your resultant output is 0
  Enter your choice
  2
  Give two input 1 for true and 0 for false
  0
  0
  Your resultant output is 0
  Enter your choice
  2
  Give two input 1 for true and 0 for false
  1
  1
  Your resultant output is 1
  Enter your choice
  3
  Give an input 1 for true and 0 for false
  1
  Your resultant output is 0
  Enter your choice
  3
  Give an input 1 for true and 0 for false
  0
  Your resultant output is 1
  Enter your choice
  4