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- class Solution {
- public:
- bool util(int i, int k) {
- if(i == 1) return false;
- if(k < (1<<(i-1))) return util(i-1, k);
- if( k == (1<<(i-1)) ) return true;
- return !util(i-1, (1<<i) - k);
- }
- char findKthBit(int i, int k) {
- return util(i, k) ? '1' : '0';
- }
- };
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