/in/foo.cc: In function 'int main()':
/in/foo.cc:71:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
    int mid = left + right >> 1;
              ~~~~~^~~~~~~
/in/foo.cc:83:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
    int mid = left + right >> 1;
              ~~~~~^~~~~~~
/in/foo.cc:95:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
    int mid = left + right >> 1;
              ~~~~~^~~~~~~
/in/foo.cc:107:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
    int mid = left + right >> 1;
              ~~~~~^~~~~~~