Write a program that will read up to ten letters into an array and write the letters back to the screen in the reverse order. For example, if the input is abcd. then the output should be dcba Use a period as a sentinel value to mark the end of the input. Call the array letterBox. For this exercise you need not use any functions. This is just a toy program and can be very minimal.

This program is to evaluate a grid (array) of land elevations. One important characteristicof the grid is the number and location of the peak elevations. The number of peaks in the griddetermines the level of difficulty for flying over the grid. A peak is a location whose elevation isequal to or greater than all of the surrounding points. Another important characteristic is thenumber and location of points that are above the timberline. The timberline is an elevationabove which no trees will grow. The timberline is generally located between the averageelevation and the maximum elevation. The elevation value that defines the timberline will varydepending on the geographic location of the land grid and so an appropriate value must be inputby the user.One user-defined function is to be generated that will determine the location of all peaksin the land grid. A peak is defined as a point that has an equal or higher elevation than thesurrounding points as seen below. Since the border points…