C++,3ms(beat 100% temporarily )


  • 0
    X
    class Solution {
    public:
    	uint32_t reverseBits(uint32_t n) {
    		uint32_t res = 0;
    		uint32_t opr = 1;
    		for (int i = 0; i < 32; ++i) {
    			res <<= 1;
    			if (n & opr)
    				++res;
    			opr <<= 1;
    		}
    		return res;
    	}
    };
    

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