23 lines
440 B
C++
23 lines
440 B
C++
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char *p1,*p2,buf[100000];
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#define nc() (p1==p2 && (p2=(p1=buf)+fread(buf,1,100000,stdin),p1==p2)?EOF:*p1++)
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inline int fastread() {
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int x=0,f=1;
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char ch=nc();
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while(ch<48||ch>57) {
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if(ch=='-') f=-1;
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ch=nc();
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}
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while(ch>=48&&ch<=57)
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x=x*10+ch-48,ch=nc();
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return x*f;
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}
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void fastwrite(int x) {
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if(x<0) putchar('-'),x=-x;
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if(x>9) fastwrite(x/10);
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putchar(x%10+'0');
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return;
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}
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