Add 24420.cpp

Author: Hiyabye

Diff for: 24xxx/24420.cpp

@@ -0,0 +1,21 @@
+#include <algorithm>
+#include <iostream>
+#include <numeric>
+#include <vector>
+using namespace std;
+
+void solve(void) {
+  int n; cin >> n;
+  vector<int> a(n);
+  for (int i=0; i<n; i++) cin >> a[i];
+
+  cout << accumulate(a.begin(), a.end(), 0) - *max_element(a.begin(), a.end()) - *min_element(a.begin(), a.end());
+}
+
+int main(void) {
+  ios::sync_with_stdio(false);
+  cin.tie(nullptr);
+
+  solve();
+  return 0;
+}