#6282. 数列分块入门 6

https://loj.ac/s/1466017

LibreOJ/6282/6282.cpp

@@ -0,0 +1,34 @@
+#include <iostream>
+#include <vector>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+const int N = 1e5 + 5;
+
+int n;
+std::vector<int> a;
+
+int main() {
+    std::ios::sync_with_stdio(false);
+
+    cin >> n;
+
+    for (int i = 1, x; i <= n; i++) {
+        cin >> x;
+        a.push_back(x);
+    }
+
+    for (int i = 1, op, l, r, c; i <= n; i++) {
+        cin >> op >> l >> r >> c;
+
+        if (op == 0) {
+            a.insert(a.begin() + l - 1, r);
+        } else {  // op == 1
+            cout << a[r - 1] << endl;
+        }
+    }
+
+    return 0;
+}