cyberland.cpp: In function 'double solve(int, int, int, int, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
cyberland.cpp:11:8: warning: unused variable 'tmp1' [-Wunused-variable]
11 | ll tmp1,tmp2,tmp3;
| ^~~~
cyberland.cpp:11:13: warning: unused variable 'tmp2' [-Wunused-variable]
11 | ll tmp1,tmp2,tmp3;
| ^~~~
cyberland.cpp:11:18: warning: unused variable 'tmp3' [-Wunused-variable]
11 | ll tmp1,tmp2,tmp3;
| ^~~~
/usr/bin/ld: /tmp/ccx6CQ5V.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccfQT3rT.o:cyberland.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status