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这样就OK

Posted by frkstyc at 2005-12-17 18:53:34
In Reply To:二分C，然后判断C-A=？B。。。 Posted by:clover at 2005-12-17 18:43:05 
#include <stdio.h>

int main(void)
{
	unsigned int x;
	scanf("%hu %hu", (unsigned short int*)&x, (unsigned short int*)&x + 1);
	(x) = (((x) & ~(((1u << (8)) - 1) << (0))) | ((((x) >> (0)) & 1u) << ((0) + (8) - 1)) | (((x) & (((1u << ((8) - 1)) - 1) << ((0) + 1))) >> 1));
	(x) = (((x) & ~(((1u << (8)) - 1) << (16))) | ((((x) >> (16)) & 1u) << ((16) + (8) - 1)) | (((x) & (((1u << ((8) - 1)) - 1) << ((16) + 1))) >> 1));
	(x) = (((x) & ~(1u << (25))) | ((((((x) >> (7)) & 1u) & (((x) >> (23)) & 1u)) | ((((x) >> (7)) & 1u) & (((x) >> (24)) & 1u)) | ((((x) >> (23)) & 1u) & (((x) >> (24)) & 1u))) << (25)));
	(x) = (((x) & ~(1u << (7))) | (((((x) >> (7)) & 1u) ^ (((x) >> (23)) & 1u) ^ (((x) >> (24)) & 1u)) << (7)));
	(x) = (((x) & ~(1u << (24))) | (((((x) >> (25)) & 1u)) << (24)));
	(x) = (((x) & ~(((1u << (8)) - 1) << (0))) | ((((x) >> (0)) & 1u) << ((0) + (8) - 1)) | (((x) & (((1u << ((8) - 1)) - 1) << ((0) + 1))) >> 1));
	(x) = (((x) & ~(((1u << (8)) - 1) << (16))) | ((((x) >> (16)) & 1u) << ((16) + (8) - 1)) | (((x) & (((1u << ((8) - 1)) - 1) << ((16) + 1))) >> 1));
	(x) = (((x) & ~(1u << (25))) | ((((((x) >> (7)) & 1u) & (((x) >> (23)) & 1u)) | ((((x) >> (7)) & 1u) & (((x) >> (24)) & 1u)) | ((((x) >> (23)) & 1u) & (((x) >> (24)) & 1u))) << (25)));
	(x) = (((x) & ~(1u << (7))) | (((((x) >> (7)) & 1u) ^ (((x) >> (23)) & 1u) ^ (((x) >> (24)) & 1u)) << (7)));
	(x) = (((x) & ~(1u << (24))) | (((((x) >> (25)) & 1u)) << (24)));
	(x) = (((x) & ~(((1u << (8)) - 1) << (0))) | ((((x) >> (0)) & 1u) << ((0) + (8) - 1)) | (((x) & (((1u << ((8) - 1)) - 1) << ((0) + 1))) >> 1));
	(x) = (((x) & ~(((1u << (8)) - 1) << (16))) | ((((x) >> (16)) & 1u) << ((16) + (8) - 1)) | (((x) & (((1u << ((8) - 1)) - 1) << ((16) + 1))) >> 1));
	(x) = (((x) & ~(1u << (25))) | ((((((x) >> (7)) & 1u) & (((x) >> (23)) & 1u)) | ((((x) >> (7)) & 1u) & (((x) >> (24)) & 1u)) | ((((x) >> (23)) & 1u) & (((x) >> (24)) & 1u))) << (25)));
	(x) = (((x) & ~(1u << (7))) | (((((x) >> (7)) & 1u) ^ (((x) >> (23)) & 1u) ^ (((x) >> (24)) & 1u)) << (7)));
	(x) = (((x) & ~(1u << (24))) | (((((x) >> (25)) & 1u)) << (24)));
	(x) = (((x) & ~(((1u << (8)) - 1) << (0))) | ((((x) >> (0)) & 1u) << ((0) + (8) - 1)) | (((x) & (((1u << ((8) - 1)) - 1) << ((0) + 1))) >> 1));
	(x) = (((x) & ~(((1u << (8)) - 1) << (16))) | ((((x) >> (16)) & 1u) << ((16) + (8) - 1)) | (((x) & (((1u << ((8) - 1)) - 1) << ((16) + 1))) >> 1));
	(x) = (((x) & ~(1u << (25))) | ((((((x) >> (7)) & 1u) & (((x) >> (23)) & 1u)) | ((((x) >> (7)) & 1u) & (((x) >> (24)) & 1u)) | ((((x) >> (23)) & 1u) & (((x) >> (24)) & 1u))) << (25)));
	(x) = (((x) & ~(1u << (7))) | (((((x) >> (7)) & 1u) ^ (((x) >> (23)) & 1u) ^ (((x) >> (24)) & 1u)) << (7)));
	(x) = (((x) & ~(1u << (24))) | (((((x) >> (25)) & 1u)) << (24)));
	(x) = (((x) & ~(((1u << (8)) - 1) << (0))) | ((((x) >> (0)) & 1u) << ((0) + (8) - 1)) | (((x) & (((1u << ((8) - 1)) - 1) << ((0) + 1))) >> 1));
	(x) = (((x) & ~(((1u << (8)) - 1) << (16))) | ((((x) >> (16)) & 1u) << ((16) + (8) - 1)) | (((x) & (((1u << ((8) - 1)) - 1) << ((16) + 1))) >> 1));
	(x) = (((x) & ~(1u << (25))) | ((((((x) >> (7)) & 1u) & (((x) >> (23)) & 1u)) | ((((x) >> (7)) & 1u) & (((x) >> (24)) & 1u)) | ((((x) >> (23)) & 1u) & (((x) >> (24)) & 1u))) << (25)));
	(x) = (((x) & ~(1u << (7))) | (((((x) >> (7)) & 1u) ^ (((x) >> (23)) & 1u) ^ (((x) >> (24)) & 1u)) << (7)));
	(x) = (((x) & ~(1u << (24))) | (((((x) >> (25)) & 1u)) << (24)));
	(x) = (((x) & ~(((1u << (8)) - 1) << (0))) | ((((x) >> (0)) & 1u) << ((0) + (8) - 1)) | (((x) & (((1u << ((8) - 1)) - 1) << ((0) + 1))) >> 1));
	(x) = (((x) & ~(((1u << (8)) - 1) << (16))) | ((((x) >> (16)) & 1u) << ((16) + (8) - 1)) | (((x) & (((1u << ((8) - 1)) - 1) << ((16) + 1))) >> 1));
	(x) = (((x) & ~(1u << (25))) | ((((((x) >> (7)) & 1u) & (((x) >> (23)) & 1u)) | ((((x) >> (7)) & 1u) & (((x) >> (24)) & 1u)) | ((((x) >> (23)) & 1u) & (((x) >> (24)) & 1u))) << (25)));
	(x) = (((x) & ~(1u << (7))) | (((((x) >> (7)) & 1u) ^ (((x) >> (23)) & 1u) ^ (((x) >> (24)) & 1u)) << (7)));
	(x) = (((x) & ~(1u << (24))) | (((((x) >> (25)) & 1u)) << (24)));
	(x) = (((x) & ~(((1u << (8)) - 1) << (0))) | ((((x) >> (0)) & 1u) << ((0) + (8) - 1)) | (((x) & (((1u << ((8) - 1)) - 1) << ((0) + 1))) >> 1));
	(x) = (((x) & ~(((1u << (8)) - 1) << (16))) | ((((x) >> (16)) & 1u) << ((16) + (8) - 1)) | (((x) & (((1u << ((8) - 1)) - 1) << ((16) + 1))) >> 1));
	(x) = (((x) & ~(1u << (25))) | ((((((x) >> (7)) & 1u) & (((x) >> (23)) & 1u)) | ((((x) >> (7)) & 1u) & (((x) >> (24)) & 1u)) | ((((x) >> (23)) & 1u) & (((x) >> (24)) & 1u))) << (25)));
	(x) = (((x) & ~(1u << (7))) | (((((x) >> (7)) & 1u) ^ (((x) >> (23)) & 1u) ^ (((x) >> (24)) & 1u)) << (7)));
	(x) = (((x) & ~(1u << (24))) | (((((x) >> (25)) & 1u)) << (24)));
	(x) = (((x) & ~(((1u << (8)) - 1) << (0))) | ((((x) >> (0)) & 1u) << ((0) + (8) - 1)) | (((x) & (((1u << ((8) - 1)) - 1) << ((0) + 1))) >> 1));
	(x) = (((x) & ~(((1u << (8)) - 1) << (16))) | ((((x) >> (16)) & 1u) << ((16) + (8) - 1)) | (((x) & (((1u << ((8) - 1)) - 1) << ((16) + 1))) >> 1));
	(x) = (((x) & ~(1u << (25))) | ((((((x) >> (7)) & 1u) & (((x) >> (23)) & 1u)) | ((((x) >> (7)) & 1u) & (((x) >> (24)) & 1u)) | ((((x) >> (23)) & 1u) & (((x) >> (24)) & 1u))) << (25)));
	(x) = (((x) & ~(1u << (7))) | (((((x) >> (7)) & 1u) ^ (((x) >> (23)) & 1u) ^ (((x) >> (24)) & 1u)) << (7)));
	(x) = (((x) & ~(1u << (24))) | (((((x) >> (25)) & 1u)) << (24)));
	printf("%u\n", (unsigned int)*(unsigned char*)&x);
	return 0;
}
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