## Question 1 What is the correct solution to the 1-Queens problem? ### Options 1. 0 Incorrect ---------------------------- 2. 1 Correct Since there's only one cell to place the queen, there is only 1 solution. ---------------------------- 3. 2 Incorrect ---------------------------- 4. 4 Incorrect ---------------------------- --------------------------------------------- ## Question 2 What is the correct solution to the 2-Queens problem? ### Options 1. 0 Correct There is no solution where the queens can be placed safely. ---------------------------- 2. 1 Incorrect ---------------------------- 3. 2 Incorrect ---------------------------- 4. 4 Incorrect ---------------------------- --------------------------------------------- ## Question 3 What is the correct solution to the 3-Queens problem? ### Options 1. $0$ Correct There is no solution where the queens can be placed safely. ---------------------------- 2. $3$ Incorrect ---------------------------- 3. $1$ Incorrect ---------------------------- 4. $2$ Incorrect ---------------------------- --------------------------------------------- ## Question 4 Is this a valid solution for following? n = 4 ![Image](/udata/1kBBMd6wl4Z/s1.png) ### Options 1. Yes Incorrect ---------------------------- 2. No Correct This is not a valid solution since there are only three queens on the board. ---------------------------- --------------------------------------------- ## Question 5 Can two more queens be added to construct a valid solution, without moving the queens already on the board? ![Image](/udata/D1mjWlvRw2d/s2.png) ### Options 1. Yes Correct A queen can be placed in the first column of the last row and in the last column of the third row to construct a valid solution. ---------------------------- 2. No Incorrect ---------------------------- ---------------------------------------------