1 #include<iostream> 2 #include<cstdio> 3 #include<queue> 4 #include<algorithm> 5 #include<cmath> 6 #include<ctime> 7 #include<set> 8 #include<map> 9 #include<stack> 10 #include<cstring> 11 #define inf 2147483647 12 #define For(i,a,b) for(register int i=a;i<=b;i++) 13 #define p(a) putchar(a) 14 #define g() getchar() 15 16 using namespace std; 17 18 void in(int &x) 19 { 20 int y=1; 21 char c=g();x=0; 22 while(c<'0'||c>'9') 23 { 24 if(c=='-') 25 y=-1; 26 c=g(); 27 } 28 while(c<='9'&&c>='0')x=(x<<1)+(x<<3)+c-'0',c=g(); 29 x*=y; 30 } 31 void o(int x) 32 { 33 if(x<0) 34 { 35 p('-'); 36 x=-x; 37 } 38 if(x>9)o(x/10); 39 p(x%10+'0'); 40 } 41 int main() 42 { 43 return 0; 44 }