Submission #2121935

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Source Code Expand

#include <cstdio>
#include <cstring>
#include <map>
#include <algorithm>
using namespace std;
#define fo(f) freopen(f".in","r",stdin);freopen(f".out","w",stdout);
#define gc getchar()
inline int read()
{
	int x=0;char c=gc;
	for(;c<48||c>57;c=gc);
	for(;c>47&&c<58;c=gc)
		x=(x<<1)+(x<<3)+c-48;
	return x;
}

typedef long long ll;
#define maxn 405
int n;
struct data
{
	int c[4];
	data(int c0=0,int c1=0,int c2=0,int c3=0)
	{
		c[0]=c0;c[1]=c1;c[2]=c2;c[3]=c3;
	}
	inline friend bool operator<(data a,data b)
	{
		for(int i=0;i<4;++i)
			if(a.c[i]^b.c[i])return a.c[i]<b.c[i];
		return 0;
	}
	inline void rotate()
	{
		int t=c[0];
		c[0]=c[1];c[1]=c[2];c[2]=c[3];c[3]=t;
	}
	inline friend bool operator==(data a,data b)
	{
		for(int j=0;j<4;++j)
		{
			int fl=1;
			for(int i=0;i<4;++i)
				if(a.c[i]!=b.c[(i+j)&3])
				{
					fl=0;
					break;
				}
			if(fl)return true;
		}
		return false;
	}
}sq[maxn];
map<data,int> mp;

inline void inc(data d)
{
	for(int i=0;i<4;++i)
	{
		++mp[d];
		d.rotate();
	}
}
inline void dec(data d)
{
	for(int i=0;i<4;++i)
	{
		--mp[d];
		d.rotate();
	}
}

inline void init()
{
	fo("square");
	n=read();
	for(int i=1;i<=n;++i)
	{
		for(int j=0;j<4;++j)
			sq[i].c[j]=read();
		inc(sq[i]);
	}
}

ll ans;

inline void calc(data l,data r,data u,data d)
{
	if(!mp[l]||!mp[r]||!mp[u]||!mp[d])return;
	ll a=mp[l],b,x,y;
	dec(l);
	b=mp[r];
	dec(r);
	x=mp[u];
	dec(u);
	y=mp[d];
	inc(u);
	inc(r);
	inc(l);
	ans+=a*b*x*y;
}

inline void solve()
{

	data l,r,u,d;
	for(int i=1;i<n;++i)
	{
		dec(sq[i]);
		for(int j=i+1;j<=n;++j)
		{
			dec(sq[j]);
			for(int k=0;k<4;++k)
			{
				l=data(sq[j].c[1],sq[i].c[0],sq[i].c[3],sq[j].c[2]);
				r=data(sq[i].c[1],sq[j].c[0],sq[j].c[3],sq[i].c[2]);
				u=data(sq[j].c[1],sq[j].c[0],sq[i].c[1],sq[i].c[0]);
				d=data(sq[i].c[3],sq[i].c[2],sq[j].c[3],sq[j].c[2]);
				calc(l,r,u,d);
				sq[i].rotate();
			}
			inc(sq[j]);
		}
		inc(sq[i]);
	}
	printf("%lld\n",ans/3);
}

int main()
{
	init();
	solve();
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘void init()’:
./Main.cpp:6:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
 #define fo(f) freopen(f".in","r",stdin);freopen(f".out","w",stdout);
                                        ^
./Main.cpp:75:2: note: in expansion of macro ‘fo’
  fo("square");
  ^
./Main.cpp:6:68: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
 #define fo(f) freopen(f".in","r",stdin);freopen(f".out","w",stdout);
                                                                    ^
./Main.cpp:75:2: note: in expansion of macro ‘fo’
  fo("square");
  ^

Judge Result