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#include<iostream> #include<string> #include<queue> #include<cstdio> #include<cstdlib> #include<algorithm> #define lson l,m,rt<<1 #define rson m+1,r,rt&lt

Railway tickets were difficult to buy around the Lunar New Year in China, so we must get up early and join a long queue…The Lunar New Year was approaching, but unluckily the Little Cat still had sched...

At the entrance to the university, there is a huge rectangular billboard of size h*w (h is its height and w is its width). The board is the place where all possible announcements are posted: nearest p...