/in/foo.c: In function 'FindWaysdiif':
/in/foo.c:10:9: warning: implicit declaration of function 'FindWays' [-Wimplicit-function-declaration]
  return FindWays(n - 1);
         ^~~~~~~~
/in/foo.c: In function 'main':
/in/foo.c:22:8: warning: unused variable 'cnt' [-Wunused-variable]
  int n,cnt=0;
        ^~~