s.insert (s.begin () + i, x);

using System.Collections.Generic;

s.Insert(i, x);

• Demo
• Doc

import std.array;

s.insertInPlace(i, x);

s.insert(i, x);

• Demo

List.insert_at(s, i, x)

• Doc

{Left, Right} = lists:split(I-1, S),
Left ++ [X|Right].

• Demo

integer, dimension(:), allocatable :: s
s = [s(1:i-1), x, s(i:)]

import "slices"

s = slices.Insert(s, i, x)

• Demo
• Doc

s = append(s, 0)
copy(s[i+1:], s[i:])
s[i] = x

• Demo
• Doc
• Origin

take i s ++ x : drop i s

s.splice(i, 0, x);

import static java.lang.System.arraycopy;
import static java.lang.reflect.Array.newInstance;

int a = 0, n = s.length;
Class<?> c = s.getClass().getComponentType();
T t[] = (T[]) newInstance(c, n + 1);
arraycopy(s, a, t, a, i);
t[i] = x;
arraycopy(s, i, t, i + 1, n - i);

• Doc

import static java.lang.System.arraycopy;

int a = 0, n = s.length,
 t[] = new int[n + 1];
arraycopy(s, a, t, a, i);
t[i] = x;
arraycopy(s, i, t, i + 1, n - i);

• Doc

import java.util.List;

s.add(i, x);

• Doc

s.add(i, x)

• Demo
• Doc

(defun ins (lst x i)
 (if (zerop i) (cons x lst)
 (cons (car lst) (ins (cdr lst) x (- i 1)))))
(setf s (ins s x i))

table.insert(s,i,x)

• Demo
• Doc

array_splice($s, $i, 0, $x);

Uses Classes;

s.Insert(i, x)

• Doc

splice(@s, $i, 0, $x);

• Demo

s.insert(i, x)

• Demo
• Doc

s.insert(i, x)

• Doc

s.insert(i, x);

• Demo
• Doc

s.Insert(i,x)

• Doc