1-9.c

1-9数字填入三个分式的a-i中

int m[9];
float add()
{
	return m[0]/(m[1]*10+m[2])+m[3]/(m[4]*10+m[5])+m[6]/(m[7]*10+m[8]);
}

main()
{

	int i1=0,i2=0,i3=0,i4=0,i5=0,i6=0,i7=0,i8=0,i9=0,j=0;	
	clrscr();
	for(i1=1;i1<=9;i1++)
	{
		m[0]=i1;
		for(i2=1;i2<=9;i2++)
		{
			if(i2==i1)continue;m[1]=i2;
			for(i3=1;i3<=9;i3++)
			{
				if(i3==i2|i3==i1)continue;m[2]=i3;
				for(i4=1;i4<=9;i4++)
				{
					if(i4==i3|i4==i2|i4==i1)continue;m[3]=i4;
					for(i5=1;i5<=9;i5++)
					{
						if(i5==i4|i5==i3|i5==i2|i5==i1)continue;m[4]=i5;
						for(i6=1;i6<=9;i6++)
						{	
							if(i6==i5|i6==i4|i6==i3|i6==i2|i6==i1)continue;m[5]=i6;
							for(i7=1;i7<=9;i7++)
							{
								if(i7==i6|i7==i5|i7==i4|i7==i3|i7==i2|i7==i1)continue;m[6]=i7;
								for(i8=1;i8<=9;i8++)
								{
									if(i8==i7|i8==i6|i8==i5|i8==i4|i8==i3|i8==i2|i8==i1)continue;m[7]=i8;
									for(i9=1;i9<=9;i9++)
									{
										if(i9==i8|i9==i7|i9==i6|i9==i5|i9==i4|i9==i3|i9==i2|i9==i1)continue;m[8]=i9;
										for(j=0;j<9;j++)printf("%d ",m[j]);
										printf("\n");
										if(getch()=='q')return;
									}
								}
							}
						}
					}
				}
			}
		}

	}
	getch();
}