how to print
1 2 3 4 5 6 7 8 9 10 9 8 7 6 5 4 3 2 1
using any loop(for or while) only once(only 1 loop) and
maximum 2 variables using C.

Answer Posted / taizul

#include<iostream>
#include<cstdio>
using namespace std;

int main()
{
for(int i = 1; i < 20; i++){
if(i>=10){
printf("%d ",(10-(i%10)));

}
else{
printf("%d ",i);
}

}
return 0;
}

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