1 #define _for(i,a,b) for(int i = (a);i < (b);i ++) 2 class Solution 3 { 4 public: 5 int bitwiseComplement(int N) 6 { 7 if(N==0) 8 return 1; 9 string s; 10 while(N) 11 { 12 s+= N%2+‘0‘; 13 N/=2; 14 } 15 reverse(s.begin(),s.end()); 16 17 _for(i,0,s.size()) 18 { 19 if(s[i]==‘0‘) 20 { 21 s[i] = ‘1‘; 22 } 23 else 24 s[i] = ‘0‘; 25 } 26 27 int rnt = 0; 28 for(int i = 0 ;i < s.size();i ++) 29 { 30 rnt += (s[i]-‘0‘)*pow(2,s.size()-i-1); 31 // cout << rnt << endl; 32 } 33 return rnt; 34 } 35 };
原文地址:https://www.cnblogs.com/Asurudo/p/10546531.html
时间: 2024-11-06 07:09:02