View Compilation Error

0_0_28303153_30780.cpp: In function 'mtrix mm(mtrix, long long int)':
0_0_28303153_30780.cpp:27:33: error: too many arguments to function 'mtrix mul(mtrix, mtrix)'
         if(s&1)res=mul(res,x,mod);
                                 ^
0_0_28303153_30780.cpp:14:7: note: declared here
 mtrix mul(mtrix x,mtrix y)
       ^
0_0_28303153_30780.cpp:29:22: error: too many arguments to function 'mtrix mul(mtrix, mtrix)'
         x=mul(x,x,mod);
                      ^
0_0_28303153_30780.cpp:14:7: note: declared here
 mtrix mul(mtrix x,mtrix y)
       ^