Answer / kurt s

#include <stdio.h>

int main() {
int n, ncpy;

printf("Input number: ");
scanf("%d", &n);

ncpy = n;

while (ncpy > 0) printf("%d", ncpy--);
while (ncpy < n) printf("%d", ++ncpy);
printf("\n");

return 0;
}

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.

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