Amcat Automata Fix Questions with Answers  | FACE Prep

Amcat Automata Fix Questions with Answers | FACE Prep

Amcat Automata Fix Questions with Answers 

The Amcat Automata Fix section is a critical part of the recruitment process for several companies like Cognizant and Wipro. It assesses a candidate’s ability to debug erroneous code and fix it efficiently. This article provides insights into the Amcat Automata Fix test pattern, common types of questions, solutions, and preparation tips.


Amcat Automata Fix Test Pattern

In the Amcat Automata Fix section, candidates can choose their preferred programming language: C, C++, or Java. This section consists of three primary types of questions:

1. Logical Errors

Candidates are required to fix logical errors in the given code. Topics like looping, conditions, and algorithm logic are commonly tested.

2. Compilation Errors

These questions involve correcting syntax errors without altering the program’s logic. The test cases and logic will be provided in the question itself.

3. Code Reuse

This is the most challenging question type. Candidates need to complete a partially written program by reusing existing functions or classes. A “helper code tab” is provided to view reusable components.

Key Instructions:

  • You can compile and run the code multiple times to verify the output.
  • Debugging using print statements is allowed.
  • Your final code must be syntactically and logically correct and should pass all test cases.
  • Avoid writing a main() function unless explicitly required.

Sample Amcat Automata Fix Questions and Solutions

Question 1: Fix Syntax Error

Problem:

#include n
int main()
{
    float x = 1.1;
    switch (x)
    {
        case 1: printf("Choice is 1");
                break;
        default: printf("Invalid choice");
                break;
    }
    return 0;
}

Solution:

#include <stdio.h>
int main()
{
    int x = 1;
    switch (x)
    {
        case 1: printf("Choice is 1");
                break;
        default: printf("Invalid choice");
                break;
    }
    return 0;
}

Explanation:

  • The expression in a switch statement must be an integral type (e.g., int, char, or enum). The variable x was changed to int.

Question 2: Fix Logical Error

Problem:

void main() {
    int i, j, n = 5;
    for(i = 1; i < n; i++)
    {
        for(j = i; j < n; j++);
        {
            printf("%d", i);
        }
        printf("\n");
    }
}

Solution:

void main() {
    int i, j, n = 5;
    for(i = 1; i < n; i++)
    {
        for(j = i; j < n; j++)
        {
            printf("%d", i);
        }
        printf("\n");
    }
}

Explanation:

  • The semicolon (;) after the inner for loop caused it to execute only once. Removing it ensures the loop iterates as intended.

Question 3: Complete Code with Function Reuse

Problem: Find the index of the equilibrium element in an array. An equilibrium element is one where the sum of all elements on its left equals the sum on its right.

Example: For array a[] = {1, 2, 3, 4, 3, 3}, the equilibrium element is 4 because 1 + 2 + 3 = 3 + 3.

Code Template:

#include <stdio.h>
int left_side_sum(int a[], int n, int idx);
int right_side_sum(int a[], int n, int idx);
int findEquilibriumIndex(int a[], int n);

int main() {
    int a[10], n, i;
    scanf("%d", &n);
    for(i = 0; i < n; i++) {
        scanf("%d", &a[i]);
    }
    int equiIndex = findEquilibriumIndex(a, n);
    if(equiIndex != -1) {
        printf("%d", a[equiIndex]);
    }
    return 0;
}

Solution:

int left_side_sum(int a[], int n, int idx) {
    int sum = 0;
    for(int i = 0; i < idx; i++) {
        sum += a[i];
    }
    return sum;
}

int right_side_sum(int a[], int n, int idx) {
    int sum = 0;
    for(int i = idx + 1; i < n; i++) {
        sum += a[i];
    }
    return sum;
}

int findEquilibriumIndex(int a[], int n) {
    for(int i = 0; i < n; i++) {
        if(left_side_sum(a, n, i) == right_side_sum(a, n, i)) {
            return i;
        }
    }
    return -1;
}

Explanation:

  • Helper functions left_side_sum and right_side_sum calculate the sums on either side of the index.
  • The main function identifies the equilibrium index based on the condition.

Preparation Tips for Amcat Automata Fix

  1. Practice Debugging: Focus on identifying and resolving syntax and logical errors.
  2. Understand Reusability: Familiarize yourself with helper functions and classes.
  3. Time Management: Practice solving questions under timed conditions.
  4. Language Proficiency: Enhance your skills in C, C++, and Java, especially in debugging and logic-building.

Conclusion

AMCAT Automata Fix is a crucial section for coding assessments, testing your debugging and problem-solving skills. To excel, focus on understanding common coding errors, logic optimization, and time complexity. Practice frequently with previously asked questions, analyze test cases, and refine your debugging approach.

Amcat Automata Fix Questions with Answers

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