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Find the first run of numbers summing to n

Given as input a positive nonzero integer n >= 10 and a sequence of digits 0-9 (which may be taken as a string or a list), find the first contiguous subsequence of digits in the sequence that sums to n and output the start and end indexes. You may use zero- or one-based indexing. If no such subsequence exists, your program may output any constant value.

Examples

These examples use zero-based indexing.

Input: 10 123456789
Output: 0 3
Input: 32 444444444
Output: 0 7
Input: 15 123456789
Output: 0 4
Input: 33 444444444
Output: No solutions

This is code-golf, so shortest program wins!

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1

\$\begingroup\$ No solutions can be x, since it's allowed to output any constant value. 🤷 \$\endgroup\$

Kevin Cruijssen
– Kevin Cruijssen

2023年01月11日 07:37:44 +00:00
Commented Jan 11, 2023 at 7:37

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