Wrong Answer
/in/foo.cc: In function 'int main()':
/in/foo.cc:128:10: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses]
else if(op=="Delete") if(mp[x]) q.erase(x),mp[x]--,maxx--;
^
/in/foo.cc: In function 'int main()':
/in/foo.cc:128:10: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses]
else if(op=="Delete") if(mp[x]) q.erase(x),mp[x]--,maxx--;
^
