/in/foo.cc: In function 'int main()':
/in/foo.cc:41:58: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
             ST[j][i] = max(ST[j][i - 1] , ST[j + (1 << i - 1)][i - 1]);
                                                        ~~^~~
/in/foo.cc:42:64: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
             ifNei[j][i] = ifNei[j][i - 1] && ifNei[j + (1 << i - 1)][i - 1];
                                                              ~~^~~