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제출 #165634

#제출 시각아이디문제언어결과실행 시간메모리
165634eriksuenderhaufCoins (IOI17_coins)C++11
100 / 100
34 ms1504 KiB
#include "coins.h" #define v std::vector<x> #define f for(x i=0;i<64;i++) #define x int v coin_flips(v b,x c) { x d=c;f d^=i*b[i]; return{d}; } x find_coin(v b) { x d=0;f d^=i*b[i]; return d; }
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