Fix 2001/coupard for clang with linux

C99 does not support implicit int. There are three ways I can think of
that would solve this problem but I chose to add the 'int' to the
parameters to prevent any problems in the future.

2001/coupard/coupard.c

@@ -28,7 +28,7 @@ $",p[6789];
 
 int o[]={145,1145,1745,2545,3045,4045,4345,5145,5745,6369},i=0,j=0,l=0;
 
-void e(n,h){
+void e(int n,int h){
  for(j=0;n>0;n-=!(p[j++]^9));
  for(;!n&&j[p]^9;j++)write(1,p+p[j][o],o[p[j]+1]-p[j][o]);
  for(i=0;i<h[o];i++)write(1,d+7,1);}