View Compilation Error

0_0_32952845_3982.cpp: In function 'int main()':
0_0_32952845_3982.cpp:41:20: error: expected ']' before ',' token
   ll n,m,a[15],b[15,cnt=0;
                    ^
0_0_32952845_3982.cpp:49:8: error: 'b' was not declared in this scope
   cin>>b[i];
        ^
0_0_32952845_3982.cpp:50:13: error: 'b' was not declared in this scope
   cnt=excrt(b,a,m);
             ^