Eroare de compilare: user.cpp:6:31: error: ‘int y1’ redeclared as different kind of symbol int T,nr,maxi,aux,mod,i,j,n,m,y1,nrb[1026]; ^ In file included from /usr/include/features.h:346:0, from /usr/local/include/c++/4.8.0/i686-pc-linux-gnu/bits/os_defines.h:39, from /usr/local/include/c++/4.8.0/i686-pc-linux-gnu/bits/c++config.h:420, from /usr/local/include/c++/4.8.0/cstdio:41, from user.cpp:1: /usr/include/bits/mathcalls.h:242:1: error: previous declaration of ‘double y1(double)’ __MATHCALL (y1,, (_Mdouble_)); ^ user.cpp: In function ‘int main()’: user.cpp:47:23: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘double (*)(double)throw ()’ [-Wformat=] scanf("%d",&y1); ^ user.cpp:49:11: error: ISO C++ forbids decrementing a pointer of type ‘double (*)(double)throw ()’ [-fpermissive] y1--; ^ user.cpp:49:11: error: lvalue required as decrement operand user.cpp:50:25: error: invalid operands of types ‘int’ and ‘double(double)throw ()’ to binary ‘operator<<’ if(list[x1]&(1<<y1)) list[x1]-=(1<<y1); ^ user.cpp:50:44: error: invalid operands of types ‘int’ and ‘double(double)throw ()’ to binary ‘operator<<’ if(list[x1]&(1<<y1)) list[x1]-=(1<<y1); ^ user.cpp:51:19: error: invalid types ‘int [40][double(double)throw ()]’ for array subscript if(list[y1]&(1<<x1)) list[y1]-=(1<<x1); ^ user.cpp:51:37: error: invalid types ‘int [40][double(double)throw ()]’ for array subscript if(list[y1]&(1<<x1)) list[y1]-=(1<<x1); ^