Eroare de compilare: user.cpp:4:8: error: ‘int y1’ redeclared as different kind of symbol int x1,y1,aux,j,k,s,x,y,c,i,n,m,b[400009],aa[400009],bb[400009]; ^ 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/utility:68, from /usr/include/c++/4.8/algorithm:60, from user.cpp:1: /usr/include/i386-linux-gnu/bits/mathcalls.h:243:1: error: previous declaration of ‘double y1(double)’ __MATHCALL (y1,, (_Mdouble_)); ^ user.cpp: In function ‘int main()’: user.cpp:38:11: error: assignment of function ‘double y1(double)’ y1=tata(a[i].y); ^ user.cpp:38:11: error: cannot convert ‘int’ to ‘double(double)throw ()’ in assignment user.cpp:39:16: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] if(x1!=y1) ^ user.cpp:41:18: error: invalid conversion from ‘double (*)(double)throw ()’ to ‘int’ [-fpermissive] b[x1]=y1; ^ user.cpp:22:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("apm.in","r",stdin); ^ user.cpp:23:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("apm.out","w",stdout); ^ user.cpp:24:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:27:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&x,&y,&c); ^