Write a program to copy its input to its output, replacing each string of one or more blanks by a single blank.

#include
main()
{
int c;
int space = 0;
while( (c = getchar()) != EOF )
{
if ( c == ' ')
{
if ( space == 0)
{
putchar(c);
space = 1;
}
}
if(c !=' ')
{
putchar(c);
space = 0;
}
}
}