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Submission #390243

#TimeUsernameProblemLanguageResultExecution timeMemory
390243IwanttobreakfreeCoins (IOI17_coins)C++17
100 / 100
15 ms1636 KiB
#include "coins.h" #include <vector> using namespace std; vector<int> coin_flips(vector<int> b, int c) { vector<int> flips; int flip=0; for(int i=0;i<64;i++)if(b[i])flip^=i; flip^=c; flips.push_back(flip); return flips; } int find_coin(vector<int> b) { int sol=0; for(int i=0;i<64;i++){ if(b[i])sol^=i; } return sol; }
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