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贴个代码,一次ac

Posted by youwang at 2010-03-24 10:06:53 on Problem 3748
#include <stdio.h>

#define setbit(x,y) x|=(1<<(y)) //将X的第Y位置1
#define clrbit(x,y) x&=~(1<<(y)) //将X的第Y位清0

int main()
{
	int r, x, y;
	scanf("%x,%d,%d", &r, &x, &y);
	clrbit(r, x);
	setbit(r, y);
	setbit(r, y - 1);
	clrbit(r, y - 2);
	printf("%x\n", r);
	return 0;
}

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