Eroare de compilare: user.cpp:7:14: error: ‘int y1’ redeclared as different kind of symbol int t,n,i,x1,y1,x2,y2,x3,y3,xv,yv,st,dr; ^ 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/cstdio:41, 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:42:11: error: assignment of function ‘double y1(double)’ y1=f(x1); ^ user.cpp:42:11: error: cannot convert ‘int’ to ‘double(double)throw ()’ in assignment user.cpp:45:18: error: invalid operands of types ‘int’ and ‘double(double)throw ()’ to binary ‘operator-’ x3=x1+y2-y1; ^ user.cpp:53:29: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘double (*)(double)throw ()’ [-Wformat=] printf("%d\n",y1); ^ user.cpp:54:15: error: ISO C++ forbids incrementing a pointer of type ‘double (*)(double)throw ()’ [-fpermissive] ++y1; ^ user.cpp:54:15: error: lvalue required as increment operand user.cpp:32:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bile5.in","r",stdin); ^ user.cpp:33:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bile5.out","w",stdout); ^ user.cpp:35:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&t); ^ user.cpp:38:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:40:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&s[i],&p[i]); ^