View Compilation Error

0_0_16977323_9221.cpp: In function 'int main()':
0_0_16977323_9221.cpp:10:37: error: 'malloc' was not declared in this scope
        a=(int *)malloc(n*sizeof(int));
                                     ^
0_0_16977323_9221.cpp:11:12: error: 'j' was not declared in this scope
        for(j=0;j<n;j++){
            ^
0_0_16977323_9221.cpp:23:14: error: 'fiee' was not declared in this scope
        fiee(a);a=NULL;
              ^