神奇的读入优化代码
(只是先存着没啥用
long long read(){ long long x=0,f=1;char ch=getchar(); while(ch>'9' or ch<'0'){if(ch=='-')f*=-1;ch=getchar();} while(ch>='0' and ch<='9'){x=x*10+ch-'0';ch=getchar();} return x*f; }
SoulWINTER OIBlogs
(只是先存着没啥用
long long read(){ long long x=0,f=1;char ch=getchar(); while(ch>'9' or ch<'0'){if(ch=='-')f*=-1;ch=getchar();} while(ch>='0' and ch<='9'){x=x*10+ch-'0';ch=getchar();} return x*f; }