제출 #699810

#제출 시각아이디문제언어결과실행 시간메모리
699810cig32비스킷 담기 (IOI20_biscuits)C++17
9 / 100
1085 ms340 KiB
#include "biscuits.h" #include "bits/stdc++.h" using namespace std; vector<long long> b; bool check(long long x, long long y) { int k = b.size(); __int128 prev = 0; __int128 prod = x; prod *= y; for(int i=k-1; i>=0; i--) { __int128 c = y / (1ll << i); c *= x; c -= prev / (1ll << i); c = min(c, (__int128) b[i]); prev += c * (1ll << i); } if(prev == prod) return 1; return 0; } long long count_tastiness(long long x, std::vector<long long> a) { b = a; long long answer = 0; for(long long y=0; y<=100000; y++) { answer += check(x, y); } return answer; }
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