/in/foo.cc: In function 'int main()':
/in/foo.cc:23:36: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
     f[i][j]=max(f[i][j-1],f[i+(1<<j-1)][j-1]);
                                   ~^~
/in/foo.cc:24:36: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
     g[i][j]=min(g[i][j-1],g[i+(1<<j-1)][j-1]);
                                   ~^~