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-rwxr-xr-xcontests/Round#835/D/main.cpp68
1 files changed, 0 insertions, 68 deletions
diff --git a/contests/Round#835/D/main.cpp b/contests/Round#835/D/main.cpp
deleted file mode 100755
index cd81147..0000000
--- a/contests/Round#835/D/main.cpp
+++ /dev/null
@@ -1,68 +0,0 @@
-#include <algorithm>
-#include <bits/stdc++.h>
-#include <tuple>
-
-using namespace std;
-
-using ll = long long;
-using pi = pair<int, int>;
-using vpi = vector<pi>;
-using vi = vector<int>;
-using vll = vector<long long>;
-using mpii = map<int, int>;
-using mpll = map<ll, ll>;
-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};
-
-int countVallyes(vi &v) {
- int cnt = 0;
- for (int i = 1; i < v.size() - 1; i++) {
- if (v[i] < v[i - 1] && v[i] < v[i + 1]) {
- cnt++;
- }
- }
- return cnt;
-}
-
-void solve() {
- int n;
- cin >> n;
- vi v(n + 2);
- v[0] = INT_MAX;
- v[n + 1] = INT_MAX;
- for (int i = 1; i < n + 1; i++) {
- cin >> v[i];
- }
- auto it = unique(all(v));
- vi a = vector<int>(v.begin(), it);
- cout << (countVallyes(a) == 1 ? "YES" : "NO") << '\n';
-}
-
-int main() {
- ios_base::sync_with_stdio(false);
- cin.tie(NULL);
- int tt;
- cin >> tt;
- while (tt--) {
- solve();
- }
-}
-
-/* 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
- */