crocodile.cpp: In function 'int travel_plan(int, int, std::vector<std::vector<int> >, std::vector<int>, int, std::vector<int>)':
crocodile.cpp:39:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
39 | for(int i =0; i < R.size(); i++){
| ~~^~~~~~~~~~
crocodile.cpp:48:1: warning: no return statement in function returning non-void [-Wreturn-type]
48 | }
| ^
/tmp/ccjMZZqH.o: In function `main':
grader.cpp:(.text.startup+0x32): undefined reference to `travel_plan(int, int, int (*) [2], int*, int, int*)'
collect2: error: ld returned 1 exit status