Runtime Error
/in/foo.cc: In function 'int main()':
/in/foo.cc:107:15: warning: unused variable 'tmp' [-Wunused-variable]
dfs(i);int tmp = 0;
^~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:107:15: warning: unused variable 'tmp' [-Wunused-variable]
dfs(i);int tmp = 0;
^~~
