Eroare de compilare: main.cpp:12:12: error: 'int y1' redeclared as different kind of symbol int k, x1, y1; ^~ In file included from /usr/include/features.h:367:0, from /usr/include/x86_64-linux-gnu/c++/6/bits/os_defines.h:39, from /usr/include/x86_64-linux-gnu/c++/6/bits/c++config.h:507, from /usr/include/c++/6/cassert:43, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:33, from main.cpp:1: /usr/include/x86_64-linux-gnu/bits/mathcalls.h:251:1: note: previous declaration 'double y1(double)' __MATHCALL (y1,, (_Mdouble_)); ^ main.cpp: In function 'void rec(int, int, char, int)': main.cpp:40:8: error: assignment of function 'double y1(double)' y1 = j; ^ main.cpp:40:8: error: cannot convert 'int' to 'double(double) throw ()' in assignment main.cpp: In function 'int main()': main.cpp:124:19: error: invalid conversion from 'double (*)(double) throw ()' to 'int' [-fpermissive] recss(x1, y1, big); ^ main.cpp:15:6: note: initializing argument 2 of 'void recss(int, int, int)' void recss(int i, int j, int vl) { ^~~~~ Non zero exit status: 1