View Compilation Error

0_0_13068912_23116.cpp: In function 'int main()':
0_0_13068912_23116.cpp:9:4: error: expected ';' before 'if'
    if(j<0){
    ^
0_0_13068912_23116.cpp:11:5: error: 'else' without a previous 'if'
    }else if(j==0){
     ^