View Compilation Error

0_0_14666043_8040.cpp: In function 'int main()':
0_0_14666043_8040.cpp:30:19: error: too few arguments to function 'int check(int, int, int, int)'
         if(check(a))
                   ^
0_0_14666043_8040.cpp:12:6: note: declared here
 int  check(int a,int b,int c,int d)
      ^