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#include <iostream> | |
#include <cstdlib> | |
using namespace std; | |
int m[3][4]; | |
/* | |
X 0 X | |
0 0 0 | |
0 0 0 | |
X 0 X | |
- unosi brojeve 1 do 8 u matricu na mjesta 0 | |
- dva susjedna (ni dijagonalno) ne smiju biti abs(a, b)==1 | |
*/ | |
void init(){ | |
for(int i=0; i<3; ++i) | |
for(int j=0; j<4; ++j) | |
m[i][j]=0; | |
m[0][0]=m[0][3]=m[2][0]=m[2][3]=-1; | |
} | |
bool ok(){ | |
for(int i=0; i<2; ++i) | |
for(int j=0; j<3; ++j) | |
if( | |
abs(m[i][j]-m[i+0][j+0])==1 || | |
abs(m[i][j]-m[i+0][j+1])==1 || | |
abs(m[i][j]-m[i+1][j+0])==1 || | |
abs(m[i][j]-m[i+1][j+1])==1 | |
) return false; | |
return true; | |
} | |
void ispis(){ | |
for(int i=0; i<4; ++i){ | |
for(int j=0; j<3; ++j) | |
if(m[j][i]==-1) cout<<"X "; | |
else cout<<m[j][i]<<" "; | |
cout<<endl; | |
} | |
} | |
void gen(){ | |
int iskoristeni[9]={0}, r, t; | |
while(1) { | |
for(int i=0; i<3; ++i) | |
for(int j=0; j<4; ++j) | |
if( | |
!(i==0 && j==0) && | |
!(i==0 && j==3) && | |
!(i==2 && j==0) && | |
!(i==2 && j==3) | |
){ | |
postavi: | |
r = rand()%8+1; | |
if(iskoristeni[r]==1) goto postavi; | |
m[i][j]=r; | |
iskoristeni[r]=1; | |
} | |
for(int i=1, t=0; i<=8; ++i){ | |
t+=iskoristeni[i]; | |
if(t==8) return; | |
} | |
} | |
} | |
int main(){ | |
init(); | |
while(1) { | |
gen(); | |
if(ok()){ | |
cout<<"Rjesenje:"<<endl; | |
ispis(); | |
break; | |
} | |
} | |
return 0; | |
} | |
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