제출 #320361

#제출 시각아이디문제언어결과실행 시간메모리
320361daringtriflesCoins (IOI17_coins)C++17
0 / 100
9 ms1456 KiB
//control+option+n to run! #include <bits/stdc++.h> using namespace std; #define pb push_back #define ll long long #define pll pair<ll, ll> #define FOR(i, a, b) for (signed long long i = (signed long long)(a); i < (signed long long)(b); i++) #define NEGFOR(i, a, b) for (ll i = (a); i > (b); i--) #define vll vector<long long> #define sll set<long long> #define ld long double #define inf 1000000000000000000 #define mll multiset<long long> #define vpll vector<pll> #define nn << "\n" #define ss << " " #define F(i, b) for (ll i = 0; i < b; i++) //10^8 operations per second //greatest int is 2,147,483,647 //greates long long is 9.22337204e18 //ALL FUNCTIONS SHOULD BE LL!!!! vector<int> coin_flips(vector<int> b, int c){ ll x=-1; FOR(i,0,b.size()){ if (x==-1&&b[i]) x=i; if (x!=-1 && b[i]) x^=i; } vector <int> v(1); v[0]=c^x; return v; } int find_coin(vector<int> b){ ll x=-1; FOR(i,0,b.size()){ if (x==-1&&b[i]) x=i; if (x!=-1 && b[i]) x^=i; } return x; }
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