I need to write a Python program to read the values in a file, one per line, such as file: test.txt
If I understand correctly, the following equation;
a = (j2-j1) + (j3-j2) + ... + (jn-(jn-1))
As you iterate over the file, it will subtract the value in the previous line from the value in the current line and then add all those differences.
a = 0 with open("test.txt", "r") as f: previous = next(f).strip() for line in f: line = line.strip() if not line: continue a = a + (int(line) - int(previous)) previous = line print(a)