/in/foo.cc: In function 'int main()':
/in/foo.cc:18:41: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'int (*)[100010]' [-Wformat=]
         scanf("%d%d%d",&num,&weight,&val);
                                         ^
/in/foo.cc:20:28: warning: 'weig' may be used uninitialized in this function [-Wmaybe-uninitialized]
             weight[count]=j*weig;
                           ~^~~~~