CSU CHESS

 1 #include <stdio.h>

 2 #include <string.h>

 3 #include <string.h>

 4

 5 int i,j,n,a,b,c,d,temp1,temp2,temp3,temp4,temp5,temp6;

 6 char a1,c1;

 7

 8 void solve()

 9 {

10     temp1=a+b;

11     temp2=c+d;

12     temp3=a-b;

13     temp4=c-d;

14     temp5=(a+b)%2;

15     temp6=(c+d)%2;

16     if(temp5!=temp6)

17         printf("Impossible\n");

18

19     else if(a==c&&b==d)

20         printf("0 %c %d\n",a1,b);

21     else if(temp1==temp2||temp3==temp4)

22         printf("1 %c %d %c %d\n",a1,b,c1,d);

23     else

24     {

25         int x,y;

26         x=a+b;

27         y=c-d;

28         for(int i=1; i<=8; i++)

29             if((i+i-y)==x&&(i-y)>=1&&(i-y)<=8)

30             {

31                 char temp;

32                 temp=‘A‘+8-i;

33                 printf("2 %c %d %c %d %c %d\n",a1,b,temp,i-y,c1,d);

34                 return ;

35             }

36         x=c+d;

37         y=a-b;

38         for(int i=1; i<=8; i++)

39             if((i+i-y)==x&&(i-y)>=1&&(i-y)<=8)

40             {

41                 char temp;

42                 temp=‘A‘+8-i;

43                 printf("2 %c %d %c %d %c %d\n",a1,b,temp,i-y,c1,d);

44                 return ;

45             }

46     }

47 }

48 int main()

49 {

50

51     scanf("%d",&n);

52     while(n--)

53     {

54         getchar();

55         scanf("%c",&a1);

56         scanf("%d",&b);

57         getchar();

58         scanf("%c",&c1);

59         scanf("%d",&d);

60

61

62

63

64

65         a=8-(a1-‘A‘);

66         c=8-(c1-‘A‘);

67

68

69         //printf("ans   %d %d %d %d\n",a,b,c,d);

70         solve();

71     }

72     return 0;

73 }

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