View Compilation Error

0_0_33232164_4604.cpp: In function 'int main()':
0_0_33232164_4604.cpp:28:19: error: lvalue required as left operand of assignment
      b[j+k*work[i]+=a[j];
                   ^
0_0_33232164_4604.cpp:28:25: error: expected ']' before ';' token
      b[j+k*work[i]+=a[j];
                         ^