76 lines
1.6 KiB
C++
76 lines
1.6 KiB
C++
#include<cstdio>
|
|
struct char_reader
|
|
{
|
|
FILE* f;
|
|
char *buf,*p1,*p2;
|
|
int size;
|
|
char_reader(FILE* fin,int bufsize=1000000)
|
|
{
|
|
f=fin;
|
|
size=bufsize;
|
|
p1=p2=0;
|
|
buf=new char[bufsize];
|
|
}
|
|
inline int operator()()
|
|
{
|
|
return p1==p2&&(p2=(p1=buf)+fread(buf,1,size,f),p1==p2)?EOF:*p1++;
|
|
}
|
|
};
|
|
struct char_writer
|
|
{
|
|
FILE* f;
|
|
char *buf,*p,*end;
|
|
char_writer(FILE* fout,int bufsize=1000000)
|
|
{
|
|
f=fout;
|
|
buf=new char[bufsize];
|
|
p=buf;
|
|
end=buf+bufsize;
|
|
}
|
|
~char_writer()
|
|
{
|
|
fwrite(buf,p-buf,1,f);
|
|
}
|
|
inline char operator()(char ch)
|
|
{
|
|
return end==p&&(fwrite(buf,end-buf,1,f),p=buf),*p++=ch;
|
|
}
|
|
};
|
|
char_reader gch(stdin);
|
|
char_writer wch(stdout);
|
|
template<typename T> inline void read(T& t)
|
|
{
|
|
t=0; bool f=false; char ch;
|
|
while(ch=gch(),!((ch>='0'&&ch<='9')||ch=='-'));
|
|
if(ch=='-') f=true,ch=gch();
|
|
t=ch-'0';
|
|
while(ch=gch(),ch>='0'&&ch<='9') t=t*10+ch-'0';
|
|
if(f) t=-t;
|
|
}
|
|
template<typename T> inline void write(T t)
|
|
{
|
|
int stk[20],cnt=0;
|
|
if(t==0) { wch('0'); return; }
|
|
if(t<0) { wch('-'); t=-t; }
|
|
while(t>0) { stk[cnt++]=t%10; t/=10; }
|
|
while(cnt) wch(stk[--cnt]+'0');
|
|
}
|
|
inline void write(char t) { wch(t); }
|
|
inline void write(const char *&s) { while(*s) wch(*s++); }
|
|
#if __cplusplus >= 201103L
|
|
template<typename T,typename... Args> inline void read(T& t,Args&... args) { read(t); read(args...); }
|
|
template<typename T,typename... Args> inline void write(T t,Args... args) { write(t); write(args...); }
|
|
#endif
|
|
#include<cstring>
|
|
#include<algorithm>
|
|
using namespace std;
|
|
int n,l,r;
|
|
int main()
|
|
{
|
|
#ifdef local
|
|
freopen("pro.in","r",stdin);
|
|
#endif
|
|
read(n,l,r);
|
|
write(n-l+(1<<l)-1,' ',(1<<r)-1+(n-r)*(1<<(r-1)),'\n');
|
|
return 0;
|
|
} |