Eroare de compilare: user.cpp:15:17: error: ‘long int j1’ redeclared as different kind of symbol long l,c,i,j,i1,j1,k; ^ In file included from /usr/include/features.h:346:0, from /usr/local/include/c++/4.8.0/i686-pc-linux-gnu/bits/os_defines.h:39, from /usr/local/include/c++/4.8.0/i686-pc-linux-gnu/bits/c++config.h:420, from /usr/local/include/c++/4.8.0/cstdio:41, from user.cpp:1: /usr/include/bits/mathcalls.h:239:1: error: previous declaration of ‘double j1(double)’ __MATHCALL (j1,, (_Mdouble_)); ^ user.cpp: In function ‘int main()’: user.cpp:43:10: error: assignment of function ‘double j1(double)’ for(j1=1;j1<=j-1;j1++) ^ user.cpp:43:10: error: cannot convert ‘int’ to ‘double(double)throw ()’ in assignment user.cpp:43:19: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] for(j1=1;j1<=j-1;j1++) ^ user.cpp:43:23: error: ISO C++ forbids incrementing a pointer of type ‘double (*)(double)throw ()’ [-fpermissive] for(j1=1;j1<=j-1;j1++) ^ user.cpp:43:23: error: lvalue required as increment operand user.cpp:44:16: error: invalid types ‘long int [20000][double(double)throw ()]’ for array subscript aux[a[i][j1]]=true; ^