/in/foo.cc: In function 'int main()':
/in/foo.cc:12:8: error: 'z' was not declared in this scope
   cin>>z[i]>>c[i]>>v[i];
        ^
/in/foo.cc:22:34: error: 'p' was not declared in this scope
     f[j+a[i]]=max(f[j+a[i]],f[j]+p[i]);
                                  ^