Eroare de compilare: user.cpp:6:88: error: ‘long long int rand’ redeclared as different kind of symbol long long x,y,z,w,u,v[101][25001],i,n,m,c,r,j,minj=102,nr=0,lim[25005],suma[25005]={0},rand,indice[25005]; ^ In file included from /usr/include/c++/4.8/cstdlib:72:0, from /usr/include/c++/4.8/ext/string_conversions.h:41, from /usr/include/c++/4.8/bits/basic_string.h:2815, from /usr/include/c++/4.8/string:52, from /usr/include/c++/4.8/bits/locale_classes.h:40, from /usr/include/c++/4.8/bits/ios_base.h:41, from /usr/include/c++/4.8/ios:42, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/stdlib.h:380:12: error: previous declaration of ‘int rand()’ extern int rand (void) __THROW; ^