Eroare de compilare: user.cpp:11:20: error: ‘int y0’ redeclared as different kind of symbol int n,m,len,a,b,x0,y0; ^ In file included from /usr/include/features.h:357:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/os_defines.h:39, from /usr/include/i386-linux-gnu/c++/4.8/bits/c++config.h:420, from /usr/include/c++/4.8/iosfwd:38, from /usr/include/c++/4.8/ios:38, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/i386-linux-gnu/bits/mathcalls.h:242:1: error: previous declaration of ‘double y0(double)’ __MATHCALL (y0,, (_Mdouble_)); ^ user.cpp: In function ‘int main()’: user.cpp:79:23: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] fin >> ar[i] + 1; ^ user.cpp:86:27: error: assignment of function ‘double y0(double)’ x0 = i,y0 = j; ^ user.cpp:86:27: error: cannot convert ‘int’ to ‘double(double)throw ()’ in assignment user.cpp:99:17: error: invalid conversion from ‘double (*)(double)throw ()’ to ‘int’ [-fpermissive] dfs(x0,y0,0); ^ user.cpp:16:6: error: initializing argument 2 of ‘void dfs(int, int, int)’ [-fpermissive] void dfs(int i,int j,int k) ^