From 418399fef4556f890e965adb7b1e483fefbb4f0e Mon Sep 17 00:00:00 2001 From: omagdy7 Date: Mon, 15 Apr 2024 17:19:02 +0200 Subject: Solved 2 problems on codeforces --- codeforces/MedianOfAnArray/main.cpp | 73 +++++++++++++++++++++++++++++ codeforces/MedianOfAnArray/main_input0.txt | 17 +++++++ codeforces/MedianOfAnArray/main_output0.txt | 8 ++++ 3 files changed, 98 insertions(+) create mode 100755 codeforces/MedianOfAnArray/main.cpp create mode 100644 codeforces/MedianOfAnArray/main_input0.txt create mode 100644 codeforces/MedianOfAnArray/main_output0.txt (limited to 'codeforces/MedianOfAnArray') diff --git a/codeforces/MedianOfAnArray/main.cpp b/codeforces/MedianOfAnArray/main.cpp new file mode 100755 index 0000000..c7e8a47 --- /dev/null +++ b/codeforces/MedianOfAnArray/main.cpp @@ -0,0 +1,73 @@ +#include + +using namespace std; + +using ll = long long; +using pii = pair; +using vpii = 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 +#define make_unique(x) \ + sort(all((x))); \ + (x).resize(unique(all((x))) - (x).begin()) +#define ceil(a, b) ((a) + (b)-1) / (b) + +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}; + +#ifdef LOCAL +#include "debug.h" +#else +#define dbg(...) 42 +#endif + +/* 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 + */ + +void solve() { + int n; + cin >> n; + vi v(n); + for (auto &x : v) { + cin >> x; + } + sort(all(v)); + int m = ceil(n, 2); + int cnt = 1; + for (int i = m - 1; i < n - 1; i++) { + if (v[i] + 1 > v[i + 1]) { + cnt++; + v[i]++; + } else { + break; + } + } + cout << cnt << '\n'; +} + +int main() { + ios_base::sync_with_stdio(false); + cin.tie(NULL); + int tt; + cin >> tt; + while (tt--) { + solve(); + } +} diff --git a/codeforces/MedianOfAnArray/main_input0.txt b/codeforces/MedianOfAnArray/main_input0.txt new file mode 100644 index 0000000..0b3e47b --- /dev/null +++ b/codeforces/MedianOfAnArray/main_input0.txt @@ -0,0 +1,17 @@ +8 +3 +2 2 8 +4 +7 3 3 1 +1 +1000000000 +5 +5 5 5 4 5 +6 +2 1 2 3 1 4 +2 +1 2 +2 +1 1 +4 +5 5 5 5 diff --git a/codeforces/MedianOfAnArray/main_output0.txt b/codeforces/MedianOfAnArray/main_output0.txt new file mode 100644 index 0000000..5054862 --- /dev/null +++ b/codeforces/MedianOfAnArray/main_output0.txt @@ -0,0 +1,8 @@ +1 +2 +1 +3 +2 +1 +2 +3 -- cgit v1.2.3