Question

The city authorities need to know the number of houses in a residential area for future planning. Write an algorithm to find the total number of houses in the area.

Input:

The first line of the input consists of two space-separated integers rows and cols representing the number of rows (n) and the number of columns in the grid (m), respectively.
The next n lines consist of m space-separated integers representing the grid.
Output:

Print an integer representing the total number of houses.
Constraints:

0 ≤ rows, cols ≤ 500

Answer 1

To find the total number of houses in a residential area, you can use an algorithm to iterate over the grid and count the number of cells that contain a house.

Step-by-step explanation:

To find the total number of houses in the residential area, we can iterate over the grid and count the number of cells that contain the value representing a house. Here is the algorithm:

1. Read the values of rows and cols from the input.
2. Create a variable totalHouses and set it to 0.
3. Iterate over the grid:

• For each row, iterate over the columns:
  • If the value of the cell is not 0, increment totalHouses by 1.

Print the value of totalHouses.

For example, if the grid is:

2 3
0 1 0
1 0 1

The algorithm will count the houses and print 3.