function y = existsInVector(a, b)
    % Check if 'a' exists in vector 'b'
    if ismember(a, b)
        y = 1; % Return 1 if 'a' exists in 'b'
    else
        y = 0; % Return 0 if 'a' does not exist in 'b'
    end
end
 
% Sample Test Cases
a1 = 3;
b1 = [1, 2, 4];
result1 = existsInVector(a1, b1);  % Expected output: 0
 
a2 = 3;
b2 = [1, 2, 3];
result2 = existsInVector(a2, b2);  % Expected output: 1
 
% Displaying the results
fprintf('Test Case 1: a = %d, b = [1, 2, 4] -> Result: %d\n', a1, result1);
fprintf('Test Case 2: a = %d, b = [1, 2, 3] -> Result: %d\n', a2, result2);
 

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