Explanation:
Initialize total
total = 0
A variable total is created.
It starts with the value 0.
This will accumulate the sum during the loops.
Start of the outer loop
for i in range(1, 4):
i takes values 1, 2, 3
(because range(1,4) includes 1,2,3)
We will analyze each iteration separately.
Outer Loop Iteration Details
When i = 1
j = i → j = 1
Enter the inner loop:
Condition: j > 0 → 1 > 0 → true
Step 1:
total += (i + j) = (1 + 1) = 2
total = 2
j -= 2 → j = -1
Next check:
j > 0 → -1 > 0 → false, inner loop stops.
When i = 2
j = i → j = 2
Step 1:
total += (2 + 2) = 4
total = 2 + 4 = 6
j -= 2 → j = 0
Next check:
j > 0 → 0 > 0 → false, inner loop ends.
When i = 3
j = i → j = 3
Step 1:
total += (3 + 3) = 6
total = 6 + 6 = 12
j -= 2 → j = 1
Step 2:
Condition: j > 0 → 1 > 0 → true
total += (3 + 1) = 4
total = 12 + 4 = 16
j -= 2 → j = -1
Next check:
j > 0 → false → exit.
Final Output
print(total)
The final value collected from all iterations is:
Output: 16
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