What would a flowchart with these requirements look like?

Inputs:

Set of temperature data

Outputs:

Number of years the average temperature increased

Number of years the average temperature decreased

Number of years the average temperature remained steady

Maximum average temperature

Minimum average temperature

Processing:

Repeatedly process each temperature data point and determine whether the temperature increased or decreased and whether the temperature is currently the maximum temperature or the minimum temperature

The current temperature is potentially the maximum temperature if it is larger than the previously determined maximum temperature

The current temperature is potentially the minimum temperature if it is less than the previously determined minimum temperature

To start, the first temperature value should be considered as both the maximum and minimum temperature, which will be confirmed or disproved by processing the other data points