View Compilation Error

0_0_37942251_3391.cpp: In function 'll dfs(int, int, int)':
0_0_37942251_3391.cpp:17:21: error: too few arguments to function 'll dfs(int, int, int)'
   ans=(ans+dfs(x+1,y))%mod;
                     ^
0_0_37942251_3391.cpp:10:4: note: declared here
 ll dfs(int x,int y,int k)
    ^
0_0_37942251_3391.cpp:21:21: error: too few arguments to function 'll dfs(int, int, int)'
   ans=(ans+dfs(x,y+1))%mod;
                     ^
0_0_37942251_3391.cpp:10:4: note: declared here
 ll dfs(int x,int y,int k)
    ^
0_0_37942251_3391.cpp: In function 'int main()':
0_0_37942251_3391.cpp:47:26: error: too few arguments to function 'll dfs(int, int, int)'
   printf("%lld\n",dfs(1,1));
                          ^
0_0_37942251_3391.cpp:10:4: note: declared here
 ll dfs(int x,int y,int k)
    ^