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dps/legalsudoku.c

Created December 29, 2012 16:49
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legalsudoku.c
#include<stdio.h>
int main(int j,char**V){char*R=V[1],i=0,k=48;for(;*R>k;*++R||
puts(R-i))++i;for(;++k<58;*R&&main(*R=k,V),*R=1)for(j=81;j
--;)*R*=R[j-i]-k||i/9^j/9&&i%9^j%9&&i/27^j/27|i%9/3^j%9/3;}
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