/in/foo.cc: In function 'int main()':
/in/foo.cc:30:43: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   maxi[i][j]=max(maxi[i][j-1],maxi[i+(1<<j-1)][j-1]);
                                          ~^~
/in/foo.cc:31:43: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   mini[i][j]=min(mini[i][j-1],mini[i+(1<<j-1)][j-1]);
                                          ~^~