View Compilation Error

0_0_33390488_7834.cpp: In function 'void mulmod(int*, int*, int*, int)':
0_0_33390488_7834.cpp:45:5: error: expected ';' before 'for'
     for (int i = 0; i < len; i++) A[i] = A[i] * B[i];
     ^
0_0_33390488_7834.cpp:45:21: error: 'i' was not declared in this scope
     for (int i = 0; i < len; i++) A[i] = A[i] * B[i];
                     ^
0_0_33390488_7834.cpp:47:5: error: expected ';' before 'for'
     for (int i = 0; i < len; i++) {
     ^