From 6b548332bfc6469756526002971c422f43f86d0a Mon Sep 17 00:00:00 2001 From: omagdy7 Date: Mon, 24 Jul 2023 13:11:33 +0300 Subject: Removed some empty *.cpp files and Solved some new problems --- contests/Round#853/A/main.cpp | 116 ------------------------------------------ 1 file changed, 116 deletions(-) delete mode 100755 contests/Round#853/A/main.cpp (limited to 'contests/Round#853/A/main.cpp') diff --git a/contests/Round#853/A/main.cpp b/contests/Round#853/A/main.cpp deleted file mode 100755 index 48a23d2..0000000 --- a/contests/Round#853/A/main.cpp +++ /dev/null @@ -1,116 +0,0 @@ -#include -using namespace std; - -using ll = long long; -using pi = pair; -using vpi = vector; -using vi = vector; -using vll = vector; -using mpii = map; -using mpll = map; -using db = long double; - -#define pb push_back -#define all(x) (x).begin(), (x).end() -#define rall(x) (x).rbegin(), (x).rend() -#define lb lower_bound -#define ub upper_bound - -const int MOD = (int)1e9 + 7; -const db PI = acos((db)-1); -const int dx[4]{1, 0, -1, 0}; -const int dy[4]{0, 1, 0, -1}; - -// pretty printing -template void printm(const map &mp) { - cerr << "{" << endl; - for (auto p : mp) { - cerr << " { " << p.first << " : " << p.second << " }\n"; - } - cerr << "}" << endl; -} -template void printv(const vector &v) { - cerr << "["; - for (int i = 0; i < v.size(); i++) { - if (i == v.size() - 1) { - cerr << v[i]; - } else { - cerr << v[i] << ", "; - } - } - cerr << "]\n"; -} - -template void printvv(const vector> &v) { - cerr << "[\n"; - for (auto &vec : v) { - cout << " "; - printv(vec); - } - cerr << "]\n"; -} -void print() { cerr << "\n"; } - -template void print(T val, TS... vals) { - cerr << val << " "; - print(vals...); -} - -/* stuff you should look for: - --------------------------- - * special cases (n=1?) - * int overflow, array bounds - * do smth instead of nothing and stay organized - * WRITE STUFF DOWN - * DON'T GET STUCK ON ONE APPROACH - */ - -bool isGood(vi &v) { - int n = v.size(); - int ans = __gcd(v[0], v[1]); - for (int i = 2; i < n; i++) { - ans = __gcd(ans, v[i]); - } - return ans <= n; -} - -bool isBeautiful(vi &v) { - for (int i = 0; i <= v.size() - 2; i++) { - vi newVec = vector(v.begin(), v.begin() + i + 2); - if (!isGood(newVec)) { - return false; - } - } - return true; -} - -void solve() { - int n; - cin >> n; - vi v(n); - for (auto &x : v) - cin >> x; - if (isBeautiful(v)) { - cout << "Yes" << '\n'; - return; - } else { - sort(all(v)); - do { - if (isBeautiful(v)) { - cout << "Yes" << '\n'; - return; - } - } while (next_permutation(all(v))); - } - cout << "No" << '\n'; -} - -int main() { - ios_base::sync_with_stdio(false); - cin.tie(NULL); - int tt; - cin >> tt; - while (tt--) { - solve(); - } -} -- cgit v1.2.3