View Compilation Error

0_0_20656541_8343.cpp: In function 'int main()':
0_0_20656541_8343.cpp:11:12: error: invalid operands of types 'int [20]' and 'int' to binary 'operator%'
    if(f[i]%2!=0)l*=f[i];
            ^
0_0_20656541_8343.cpp:11:18: error: invalid use of non-lvalue array
    if(f[i]%2!=0)l*=f[i];
                  ^
0_0_20656541_8343.cpp:11:18: error:   in evaluation of 'operator*=(int, int [20])'