Eroare de compilare: main.cpp:3:52: error: 'int y1' redeclared as different kind of symbol int n,m,a[101][101],d[101][101][21],i,j,l,k,sum,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 'int main()': main.cpp:36:13: error: assignment of function 'double y1(double)' x1=x;y1=y; ^ main.cpp:36:13: error: cannot convert 'int' to 'double(double) throw ()' in assignment main.cpp:38:19: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] if (x==x1&&y==y1) ^~ Non zero exit status: 1