My C code. How to prevent numbers in columns to repeat? [closed]

Question

Hi, I have a question. I want to print a list of odd numbers from 1 to 99 in 2 columns using C, but as you can see in the image, the numbers are repeating. I want the numbers to follow the sequence. Like: 1-3-5-7etc..., not 1-3-3-5-5-7... Hope someone can help me, thank you.

#include<stdio.h>
int main(){
  int sum=0,i=1,k=0;
  printf("List of odd numbers:\n");
  while(i<99){
    k=i;
    i=i+2;
    printf("%d\t%d\n",k,i);
  }

  for(i=1;i<=99;i++){
    if(i%2!=0)
       sum+=i;
  }

  printf("Sum is: %d",sum);
  return 0;
}

This is the link image of the code

Answer 1

Print your current number and the next number (+2). Afterwards, increment the current number by two positions (+4).

#include <stdio.h>

int main(void) {
    for (unsigned i = 1; i < 99; i += 4)
        printf("%d\t%d\n", i, i + 2);
}

stdout:

1   3
5   7
9   11
13  15
17  19
21  23
25  27
29  31
33  35
37  39
41  43
45  47
49  51
53  55
57  59
61  63
65  67
69  71
73  75
77  79
81  83
85  87
89  91
93  95
97  99