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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#78301 | #5419. Triangles | ExplodingKonjac | WA | 2ms | 3440kb | C++17 | 5.7kb | 2023-02-17 17:26:24 | 2023-02-17 17:26:25 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
//#define OPENIOBUF
namespace FastIO
{
class FastIOBase
{
protected:
#ifdef OPENIOBUF
static const int BUFSIZE=1<<22;
char buf[BUFSIZE+1];
int buf_p=0;
#endif
FILE *target;
public:
#ifdef OPENIOBUF
virtual void flush()=0;
#endif
FastIOBase(FILE *f): target(f){}
~FastIOBase()=default;
};
class FastOutput: public FastIOBase
{
#ifdef OPENIOBUF
public:
inline void flush()
{ fwrite(buf,1,buf_p,target),buf_p=0; }
#endif
protected:
inline void __putc(char x)
{
#ifdef OPENIOBUF
if(buf[buf_p++]=x,buf_p==BUFSIZE)flush();
#else
putc(x,target);
#endif
}
template<typename T>
inline void __write(T x)
{
static char stk[64],*top;top=stk;
if(x<0) return __putc('-'),__write(-x);
do *(top++)=x%10,x/=10; while(x);
for(;top!=stk;__putc(*(--top)+'0'));
}
public:
FastOutput(FILE *f=stdout): FastIOBase(f){}
#ifdef OPENIOBUF
inline void setTarget(FILE *f) { this->flush(),target=f; }
~FastOutput(){ flush(); }
#else
inline void setTarget(FILE *f) { target=f; }
#endif
template<typename ...T>
inline void writesp(const T &...x)
{ initializer_list<int>{(this->operator<<(x),__putc(' '),0)...}; }
template<typename ...T>
inline void writeln(const T &...x)
{ initializer_list<int>{(this->operator<<(x),__putc('\n'),0)...}; }
inline FastOutput &operator <<(char x)
{ return __putc(x),*this; }
inline FastOutput &operator <<(const char *s)
{ for(;*s;__putc(*(s++)));return *this; }
inline FastOutput &operator <<(const string &s)
{ return (*this)<<s.c_str(); }
template<typename T,typename=typename enable_if<is_integral<T>::value>::type>
inline FastOutput &operator <<(const T &x)
{ return __write(x),*this; }
}qout;
class FastInput: public FastIOBase
{
#ifdef OPENIOBUF
public:
inline void flush()
{ buf[fread(buf,1,BUFSIZE,target)]='\0',buf_p=0; }
#endif
protected:
inline char __getc()
{
#ifdef OPENIOBUF
if(buf_p==BUFSIZE) flush();
return buf[buf_p++];
#else
return getc(target);
#endif
}
public:
#ifdef OPENIOBUF
FastInput(FILE *f=stdin): FastIOBase(f){ buf_p=BUFSIZE; }
inline void setTarget(FILE *f) { this->flush(),target=f; }
#else
FastInput(FILE *f=stdin): FastIOBase(f){}
inline void setTarget(FILE *f) { target=f; }
#endif
inline char getchar() { return __getc(); }
template<typename ...T>
inline void read(T &...x)
{ initializer_list<int>{(this->operator>>(x),0)...}; }
inline FastInput &operator >>(char &x)
{ while(isspace(x=__getc()));return *this; }
template<typename T,typename=typename enable_if<is_integral<T>::value>::type>
inline FastInput &operator >>(T &x)
{
static char ch,sym;x=sym=0;
while(isspace(ch=__getc()));
if(ch=='-') sym=1,ch=__getc();
for(;isdigit(ch);x=(x<<1)+(x<<3)+(ch^48),ch=__getc());
return sym?x=-x:x,*this;
}
inline FastInput &operator >>(char *s)
{
while(isspace(*s=__getc()));
for(;!isspace(*s) && *s && ~*s;*(++s)=__getc());
return *s='\0',*this;
}
inline FastInput &operator >>(string &s)
{
char str_buf[(1<<8)+1],*p=str_buf;
char *const buf_end=str_buf+(1<<8);
while(isspace(*p=__getc()));
for(s.clear(),p++;;p=str_buf)
{
for(;p!=buf_end && !isspace(*p=__getc()) && *p && ~*p;p++);
*p='\0',s.append(str_buf);
if(p!=buf_end) break;
}
return *this;
}
}qin;
} // namespace FastIO
using namespace FastIO;
using LL=long long;
using LD=long double;
using UI=unsigned int;
using ULL=unsigned long long;
#ifndef DADALZY
#define FILEIO(file) freopen(file".in","r",stdin),freopen(file".out","w",stdout)
#else
#define FILEIO(file)
#endif
constexpr int sol1[][3][2]={ // 8 triangles
{{0,0},{100,0},{0,100}},
{{0,100},{45,25},{50,100}},
{{45,25},{55,25},{50,100}},
{{100,0},{100,100},{55,25}},
{{100,0},{55,25},{50,0}},
{{45,25},{55,25},{50,0}},
{{0,0},{45,25},{50,0}},
{{100,100},{55,25},{50,100}}
},
sol2[][3][2]={ // 9 triangles
{{0,0},{0,100},{70,50}},
{{0,100},{60,100},{49,65}},
{{75,75},{60,100},{49,65}},
{{75,75},{70,50},{49,65}},
{{100,100},{75,75},{60,100}},
{{100,100},{75,75},{100,60}},
{{75,75},{70,50},{100,60}},
{{0,0},{100,0},{70,50}},
{{100,0},{70,50},{100,60}}
},
sol3[][3][2]={ // 10 triangles
{{0,0},{0,100},{45,25}},
{{0,100},{45,25},{50,100}},
{{0,0},{45,25},{47,0}},
{{45,25},{55,25},{50,100}},
{{45,25},{50,25},{47,0}},
{{50,25},{53,0},{47,0}},
{{55,25},{50,25},{53,0}},
{{100,100},{55,25},{50,100}},
{{100,0},{55,25},{53,0}},
{{100,0},{100,100},{55,25}}
},
SCALE=1e7;
int n;
int main()
{
qin>>n;
if(n<8) return qout<<"No",0;
int a[2],b[2],c[2];
qout<<"Yes\n";
if(n%3==0) for(auto &[A,B,C]: sol2)
{
a[0]=A[0]*SCALE,a[1]=A[1]*SCALE,qout<<a[0]<<' '<<a[1]<<' ';
b[0]=B[0]*SCALE,b[1]=B[1]*SCALE,qout<<b[0]<<' '<<b[1]<<' ';
c[0]=C[0]*SCALE,c[1]=C[1]*SCALE,qout<<c[0]<<' '<<c[1]<<'\n';
n--;
}
else if(n%3==1) for(auto &[A,B,C]: sol3)
{
a[0]=A[0]*SCALE,a[1]=A[1]*SCALE,qout<<a[0]<<' '<<a[1]<<' ';
b[0]=B[0]*SCALE,b[1]=B[1]*SCALE,qout<<b[0]<<' '<<b[1]<<' ';
c[0]=C[0]*SCALE,c[1]=C[1]*SCALE,qout<<c[0]<<' '<<c[1]<<'\n';
n--;
}
else for(auto &[A,B,C]: sol1)
{
a[0]=A[0]*SCALE,a[1]=A[1]*SCALE,qout<<a[0]<<' '<<a[1]<<' ';
b[0]=B[0]*SCALE,b[1]=B[1]*SCALE,qout<<b[0]<<' '<<b[1]<<' ';
c[0]=C[0]*SCALE,c[1]=C[1]*SCALE,qout<<c[0]<<' '<<c[1]<<'\n';
n--;
}
while(n--)
{
int na[2],nb[2],nc[2];
na[0]=(a[0]+b[0])/2,na[1]=(a[1]+b[1])/2;
nb[0]=(b[0]+c[0])/2,nb[1]=(b[1]+c[1])/2;
nc[0]=(c[0]+a[0])/2,nc[1]=(c[1]+a[1])/2;
a[0]=na[0],a[1]=na[1],qout<<a[0]<<' '<<a[1]<<' ';
b[0]=nb[0],c[1]=nb[1],qout<<b[0]<<' '<<b[1]<<' ';
c[0]=nc[0],c[1]=nc[1],qout<<c[0]<<' '<<c[1]<<'\n';
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 2ms
memory: 3316kb
input:
2
output:
No
result:
ok no solution
Test #2:
score: -100
Wrong Answer
time: 2ms
memory: 3440kb
input:
24
output:
Yes 0 0 0 1000000000 700000000 500000000 0 1000000000 600000000 1000000000 490000000 650000000 750000000 750000000 600000000 1000000000 490000000 650000000 750000000 750000000 700000000 500000000 490000000 650000000 1000000000 1000000000 750000000 750000000 600000000 1000000000 1000000000 1000000000...
result:
wrong answer triangle 11 not acute