Къде ми е грешката в задачата Array modifier?
https://pastebin.com/Nr5Md0Fk
Това е моя код.
А ето и условието на задачата:
02. Array Modifier
You are given an array with integers. Write a program to modify the elements after receive the commands “swap”, “multiply” or “decrease”.
- “swap {index1} {index2}” take two elements and swap their places.
- “multiply {index1} {index2}” take element at the 1st index and multiply it with element at 2nd index. Save the product at the 1st index.
- “decrease” decreases all elements in the array with 1.
Input
On the first input line you will be given the initial array values separated by a single space.
On the next lines you will receive commands until you receive the command “end”. The commands are as follow:
- “swap {index1} {index2}”
- “multiply {index1} {index2}”
- “decrease”
Output
The output should be printed on the console and consist element of the modified array – separated by “, “(comma and single space).
Constraints
- Commands will be: “swap”, “multiply”, “decrease” and “end”
- Elements of the array will be integer numbers in the range [-231...231]
- Count of the array elements will be in the range [2...100]
- Indexes will be always in the range of the array
Examples
|
Input |
Output |
Comments |
|
23 -2 321 87 42 90 -123 swap 1 3 swap 3 6 swap 1 0 multiply 1 2 multiply 2 1 decrease end |
23 -2 321 87 42 90 -123 – initial values swap 1(-2) and 3(87) ▼ 23 87 321 -2 42 90 -123 swap 3(-2) and 6(-123) ▼ 23 87 321 -123 42 90 -2 swap 1(87) and 0(23) ▼ 87 23 321 -123 42 90 -2 multiply 1(23) 2(321) = 7383 ▼ 87 7383 321 -123 42 290 -2 multiply 2(321) 1(7383) = 2369943 ▼ 87 7383 2369943 -123 42 90 -2 decrease – all - 1 ▼ 86 7383 2369942 -124 41 89 -3 |
|
|
1 2 3 4 swap 0 1 swap 1 2 swap 2 3 multiply 1 2 decrease end |
1, 11, 3, 0 |
|
|
Input JavaScript |
Output |
Comments |
|
[ '23 -2 321 87 42 90 -123', 'swap 1 3', 'swap 3 6', 'swap 1 0', 'multiply 1 2', 'multiply 2 1', 'decrease', 'end' ] |
86, 7382, 2369942, -124, 41, 89, -3 |
23 -2 321 87 42 90 -123 – initial values swap 1(-2) and 3(87) ▼ 23 87 321 -2 42 90 -123 swap 3(-2) and 6(-123) ▼ 23 87 321 -123 42 90 -2 swap 1(87) and 0(23) ▼ 87 23 321 -123 42 90 -2 multiply 1(23) 2(321) = 7383 ▼ 87 7383 321 -123 42 290 -2 multiply 2(321) 1(7383) = 2369943 ▼ 87 7383 2369943 -123 42 90 -2 decrease – all - 1 ▼ 86 7383 2369942 -124 41 89 -3 |
|
[ '1 2 3 4', 'swap 0 1', 'swap 1 2', 'swap 2 3', 'multiply 1 2', 'decrease', 'end' ] |
1, 11, 3, 0 |
|
Благодаря.