Keyboard input an integer of 1~80 and assign it to the variable n, which requires printing n characters from the screen.
# include & ltstdio.h & gt
int main()
{
int n，I；
scanf("%d "，& ampn)；
for(I = 0； I & ltn；; ++i)
putchar(i%2？ '#':'*');
Returns 0;
}