What is the problem ?!

Question

so I wrote this program i#include <stdio.h>

int main() {

int i,k,j,n,c,h;
scanf("%d",&n);
int a[n];
for(i=0;i<n;i++)
scanf("%d",&a[i]);
for (j=0;j<n;j+=2)
{ h = j+1;
c = a[j];
a[j] = a[h];
a[n] = c;
}
for(k=0;k<n;k++)
printf("%d\n",a[k]);
return 0;
}
it's suppose when I enter a group of numbers it will change every number with the one next to it like 👉 {123456}_>{214365}
but instead of That it just give me zero or the addresses

Answer 1

can we see the code via the playground as it may help us help you

Answer 2

Inside your second for loop, the for(j = 0; ...)

Replace:
a[n] = c;

With:
a[h] = c;

Hth, cmiiw

Answer 3

and everytime I get this 👇
0
123456
0
2358772
0
4593840

Answer 4

Taw🐼 that's odd, I am running your code but we have different output, I'll look it up again later tomorrow, now I'm too sleepy. Good luck mate ...

Answer 5

I already tried that but it didn't work the same result without infinite loop

Answer 6

OK the problem was in the way I enter the numbers😅
now I have the right output
thanks for your help 👍

Answer 7

https://code.sololearn.com/ctx6HDx7UQj7/?ref=app
here you are 🌚

Answer 8

Taw🐼 I run the code with this input in Code Playground. The first 6 is the array size, next I used 1 to 6 to fill array.

6
1
2
3
4
5
6

Output:
2
1
4
3
6
5