foo.cc: In function 'void dfs(int, int)':
foo.cc:51:11: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   51 |     if(tmp+1>>1){g[q]=f[q]+tmp;}
      |        ~~~^~
foo.cc: In function 'int main()':
foo.cc:66:1: error: expected primary-expression before '}' token
   66 | }
      | ^

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