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Welcome to the Dynamic Programming MCQs Page

Dive deep into the fascinating world of Dynamic Programming with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Dynamic Programming, a crucial aspect of Data Structures and Algorithms. In this section, you will encounter a diverse range of MCQs that cover various aspects of Dynamic Programming, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Data Structures and Algorithms.

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Check out the MCQs below to embark on an enriching journey through Dynamic Programming. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Data Structures and Algorithms.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Dynamic Programming. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Dynamic Programming MCQs | Page 10 of 22

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Q91.
Consider the brute force implementation in which we find all the possible ways of multiplying the given set of n matrices. What is the time complexity of this implementation?
Discuss
Answer: (d).Exponential
Q92.
Consider the following dynamic programming implementation of the matrix chain problem.
Which of the following lines should be inserted to complete the below code?
#include<stdio.h>
#include<limits.h>
int mat_chain_multiplication(int *mat, int n)
{
      int arr[n][n];
      int i,k,row,col,len;
      for(i=1;i<n;i++)
          arr[i][i] = 0;
      for(len = 2; len < n; len++)
      {
           for(row = 1; row <= n - len + 1; row++)
           {
               col = row + len - 1;
               arr[row][col] = INT_MAX;
               for(k = row; k <= col - 1; k++)
               {
                    int tmp = ________________________;
                    if(tmp < arr[row][col])
                    arr[row][col] = tmp;
               }
           }
      }
      return arr[1][n - 1];
}
int main()
{
     int mat[6] = {20,5,30,10,40};
     int ans = mat_chain_multiplication(mat,5);
     printf("%d",ans);
     return 0;
}

Discuss
Answer: (c).arr[row][k] + arr[k + 1][col] + mat[row – 1] * mat[k] * mat[col];
Q93.
What is the output of the following code?
#include<stdio.h>
#include<limits.h>
int mat_chain_multiplication(int *mat, int n)
{
     int arr[n][n];
     int i,k,row,col,len;
     for(i=1;i<n;i++)
         arr[i][i] = 0;
     for(len = 2; len < n; len++)
     {
          for(row = 1; row <= n - len + 1; row++)
          {
               col = row + len - 1;
               arr[row][col] = INT_MAX;
               for(k = row; k <= col - 1; k++)
               {
                    int tmp = arr[row][k] + arr[k + 1][col] + mat[row - 1] * mat[k] * mat[col];
                    if(tmp < arr[row][col])
                    arr[row][col] = tmp;
               }
           }
     }
     return arr[1][n - 1];
}
int main()
{
     int mat[6] = {20,30,40,50};
     int ans = mat_chain_multiplication(mat,4);
     printf("%d",ans);
     return 0;
}
Discuss
Answer: (a).64000
Q94.
What is the value stored in arr[2][3] when the following code is executed?
#include<stdio.h>
#include<limits.h>
int mat_chain_multiplication(int *mat, int n)
{
     int arr[n][n];
     int i,k,row,col,len;
     for(i=1;i<n;i++)
         arr[i][i] = 0;
     for(len = 2; len < n; len++)
     {
          for(row = 1; row <= n - len + 1; row++)
          {
               col = row + len - 1;
               arr[row][col] = INT_MAX;
               for(k = row; k <= col - 1; k++)
               {
                     int tmp = arr[row][k] + arr[k + 1][col] + mat[row - 1] * mat[k] * mat[col];
                     if(tmp < arr[row][col])
                     arr[row][col] = tmp;
               }
          }
     }
     return arr[1][n - 1];
}
int main()
{
     int mat[6] = {20,30,40,50};
     int ans = mat_chain_multiplication(mat,4);
     printf("%d",ans);
     return 0;
}
Discuss
Answer: (b).60000
Q95.
What is the output of the following code?
#include<stdio.h>
#include<limits.h>
int mat_chain_multiplication(int *mat, int n)
{
     int arr[n][n];
     int i,k,row,col,len;
     for(i=1;i<n;i++)
         arr[i][i] = 0;
     for(len = 2; len < n; len++)
     {
          for(row = 1; row <= n - len + 1; row++)
          {
               col = row + len - 1;
               arr[row][col] = INT_MAX;
               for(k = row; k <= col - 1; k++)
               {
                    int tmp = arr[row][k] + arr[k + 1][col] + mat[row - 1] * mat[k] * mat[col];
                    if(tmp < arr[row][col])
                    arr[row][col] = tmp;
               }
          }
     }
     return arr[1][n-1];
}
int main()
{
     int mat[6] = {10,10,10,10,10,10};
     int ans = mat_chain_multiplication(mat,6);
     printf("%d",ans);
     return 0;
}
Discuss
Answer: (c).4000
Q96.
What is the output of the following code?
#include<stdio.h>
#include<limits.h>
int mat_chain_multiplication(int *mat, int n)
{
     int arr[n][n];
     int i,k,row,col,len;
     for(i=1;i<n;i++)
         arr[i][i] = 0;
     for(len = 2; len < n; len++)
     {
          for(row = 1; row <= n - len + 1; row++)
          { 
               col = row + len - 1;
               arr[row][col] = INT_MAX;
               for(k = row; k <= col - 1; k++)
               {
                    int tmp = arr[row][k] + arr[k + 1][col] + mat[row - 1] * mat[k] * mat[col];
                    if(tmp < arr[row][col])
                    arr[row][col] = tmp;
               }
          }
     }
     return arr[1][n-1];
}
int main()
{
     int mat[6] = {20,25,30,35,40};
     int ans = mat_chain_multiplication(mat,5);
     printf("%d",ans);
     return 0;
}
Discuss
Answer: (c).64000
Q97.
Which of the following methods can be used to solve the longest common subsequence problem?
Discuss
Answer: (c).Both recursion and dynamic programming
Q98.
Consider the strings β€œPQRSTPQRS” and β€œPRATPBRQRPS”. What is the length of the longest common subsequence?

a.

9

b.

8

c.

7

d.

6

Discuss
Answer: (c).7
Q99.
Which of the following problems can be solved using the longest subsequence problem?
Discuss
Answer: (b).Longest palindromic subsequence
Q100.
Longest common subsequence is an example of ____________
Discuss
Answer: (b).2D dynamic programming

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