Eroare de compilare: main.cpp:15:9: error: 'int y1' redeclared as different kind of symbol int x1, y1, x2, y2 , noux , nouy ; ^~ 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/iosfwd:38, from /usr/include/c++/6/ios:38, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/fstream:38, 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 calc_lat()': main.cpp:19:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i<strlen(s) ; i++) ~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:78:10: error: assignment of function 'double y1(double)' y1 = 0 ; ^ main.cpp:78:10: error: cannot convert 'int' to 'double(double) throw ()' in assignment main.cpp:81:20: error: invalid conversion from 'double (*)(double) throw ()' to 'int' [-fpermissive] imp(x1,y1,x2,y2) ; ^ main.cpp:39:6: note: initializing argument 2 of 'void imp(int, int, int, int)' void imp(int x1, int y1, int x2, int y2) ^~~ Non zero exit status: 1