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贴个代码,一次ac#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; } Followed by:
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