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Submission #124731

#TimeUsernameProblemLanguageResultExecution timeMemory
124731mraronCoins (IOI17_coins)C++14
100 / 100
13 ms1508 KiB
#include "coins.h" using namespace std; vector<int> coin_flips(vector<int> b, int c) { vector<int> res(1); int sum=0; for(int i=0;i<(int)b.size();++i) { sum^=i*b[i]; } res[0]=sum^c; return res; } int find_coin(vector<int> b) { int sum=0; for(int i=0;i<(int)b.size();++i) { sum^=b[i]*i; } return sum; }
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