Precreation contest files

misc/bdhsg_1015/max3.cpp

@@ -0,0 +1,21 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+  ios_base::sync_with_stdio(false);
+  cin.tie(NULL);
+  freopen("max3.inp", "r", stdin);
+
+  int n;
+  cin >> n;
+  vector<int> a(n);
+  for (int &i : a)
+    cin >> i;
+
+  int res = 0;
+  for (int i = 0; i < n - 2; i++)
+    res = max(res, a[i] + a[i + 1] + a[i + 2]);
+
+  cout << res << '\n';
+}