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MinimumArrayEnd.cpp

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class Solution {

public:

long long minEnd(int n, int x) {

bitset<64> answer(x);

bitset<64> n_bin(n - 1);

int idx = 0;

for (int i = 0; i < 64; i++) {

if (!answer[i]) {

answer[i] = n_bin[idx];

idx++;

}

}

return answer.to_ullong();

}

};