railroad.cpp: In function 'long long int plan_roller_coaster(std::vector<long long int>, std::vector<long long int>)':
railroad.cpp:17:29: error: 'curr' was not declared in this scope; did you mean 'cur'?
17 | sum += max(0LL, curr-s[j]);
| ^~~~
| cur
railroad.cpp:18:23: error: expected ';' before '}' token
18 | cur = c[j]
| ^
| ;
19 | }mn = min(mn, sum);
| ~
railroad.h:1:9: warning: #pragma once in main file
1 | #pragma once
| ^~~~
railroad_c.h:1:9: warning: #pragma once in main file
1 | #pragma once
| ^~~~