#pragma GCC optimize("Ofast") #pragma GCC target("avx2") #define rd_init() char*rp=({char*mmap();mmap(0l,1l<<25,1,2,0,0ll);}) #define rd_skip() while(*rp++>=48) #define rd() ({int _v=0,_c;while(_c=*rp++-48,_c>=0)_v=_v*10+_c;_v;}) #define rep(v,e) for(typeof(e) v=0;v>=1;){ if(fw[a+m]<=k){ k-=fw[a+m]; a+=m; } } return a+1; } char wbuf[1<<25]; char x[1<<18],y[1<<18]; int main(){ rd_init(); rd_skip(); char*wp=wbuf; while(*rp){ int n=rd(); fwsize=n; for(fwlim=1;fwlim