Submission #46595652

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Source Code Expand

#include <bits/stdc++.h>
#ifdef LOCAL
#include "debug.h"
#else
#define debug(...)
#endif
using int64 = long long;
using uint = unsigned int;
using uint64 = unsigned long long;
bool ckmin(auto& a, auto b) { return b < a ? a = b, 1 : 0; }
bool ckmax(auto& a, auto b) { return b > a ? a = b, 1 : 0; }
using namespace std;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);

  int n;
  cin >> n;
  vector<int> a(n);
  for (int i = 0; i < n; i++) cin >> a[i];
  bool ok = true;
  for (int i = 1; i < n; i++) {
    if (a[i] != a[i - 1]) ok = false;
  }
  cout << (ok ? "Yes" : "No") << '\n';

  return 0;
}

Submission Info

Judge Result