Розбір

Print the numbers from $1$ to $n$ using a loop.

Algorithm realization

Read the input value of $n$ .

scanf("%d",&n);

Print the numbers from $1$ to $n$ in a single line, separated by spaces.

for(i = 1; i <= n; i++)
  printf("%d ",i);

Terminate the line with a newline character.

printf("\n");

Java realization

import java.util.*;

class Main 
{
  public static void main(String[] args) 
  {
    Scanner con = new Scanner(System.in);
    int n = con.nextInt();
    for(int i = 1; i <= n; i++)
      System.out.print(i + " ");
    con.close();
  }
}

Python realization

Read the input value of $n$ .

n = int(input())

Print the numbers from $1$ to $n$ in a single line, separated by spaces.

for i in range(1,n+1):
  print(i, end = " ")