Problem	railway
User	goose
Submission Time	2026-09-26 15:30:33
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

railway.cpp: In function ‘int main()’:
railway.cpp:51:27: error: ‘i’ was not declared in this scope
51 | for (int k = 1; k <= 19; i++) {
| ^