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#include "coins.h" #include <vector> std::vector<int> coin_flips(std::vector<int> b, int c) { int xor_all = 0; for(int i = 0; i < (int) b.size(); i++) { if(b[i]) { xor_all ^= i; } } std::vector<int> v = {c ^ xor_all}; return v; } int find_coin(std::vector<int> b) { int xor_result = 0; for(int i = 0; i < (int) b.size(); i++) { if(b[i]) { xor_result ^= i; } } return xor_result; }
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