10 2021 档案
摘要:快读,快输 //#define getchar()(X==Y&&(Y=(X=sRead)+fread(sRead,1,1<<21,stdin),X==Y)?EOF:*X++) //char sRead[1<<21],*X=sRead,*Y=sRead; //#pragma GCC target("s
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摘要:数组开太小?RE/WA!开太大?MLE! freopen 里面文件名写错?FST! 线段树写了这么个东西: if(x<=middle){ //do something... } if(middle<=y){ //do something... } 死循环!(将 middle<=y\(\to\)mid
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