碳酸钙的01妖精的博客

POJ-2100 Graveyard Design（尺取法）King George has recently decided that he would like to have a new design for the royal graveyard. The graveyard must consist of several sections, each of which must be ...

POJ-2566 Bound Found Time(尺取法） Signals of most probably extra-terrestrial origin have been received and digitalized by The Aeronautic and Space Administration (that must be going through a...

int chiqu(){ int l = 0,r = 0; int ans = 0,len = MAXN; while(true) { while(r <= n && ans < S) r ++,ans += num[r]; if(ans < S) break; ...