ricehub.cpp: In function 'long long int besthub(long long int, long long int, long long int*, long long int)':
ricehub.cpp:15:5: warning: unused variable 'l1' [-Wunused-variable]
15 | ll l1 = 1, r1 = l, md = 0, jog = -1, tmp, nd, ans, mx = 0;
| ^~
ricehub.cpp:15:13: warning: unused variable 'r1' [-Wunused-variable]
15 | ll l1 = 1, r1 = l, md = 0, jog = -1, tmp, nd, ans, mx = 0;
| ^~
ricehub.cpp:15:29: warning: unused variable 'jog' [-Wunused-variable]
15 | ll l1 = 1, r1 = l, md = 0, jog = -1, tmp, nd, ans, mx = 0;
| ^~~
ricehub.cpp:15:44: warning: unused variable 'nd' [-Wunused-variable]
15 | ll l1 = 1, r1 = l, md = 0, jog = -1, tmp, nd, ans, mx = 0;
| ^~
/usr/bin/ld: /tmp/ccbBNGKc.o: in function `main':
grader.cpp:(.text.startup+0xae): undefined reference to `besthub(int, int, int*, long long)'
collect2: error: ld returned 1 exit status