Eroare de compilare: user.cpp:9:37: error: ‘int y1’ redeclared as different kind of symbol int n, m, x, y, op, maxx, c, j, x1, y1, i, p, u, k, a[65][1000002]; ^ 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:71:23: error: assignment of function ‘double y1(double)’ y1=k; ^ user.cpp:71:23: error: cannot convert ‘int’ to ‘double(double)throw ()’ in assignment user.cpp:79:27: error: invalid types ‘int [1000002][double(double)throw ()]’ for array subscript if(a[j][y1]-a[j][x1-1]>maxx) maxx=a[j][y1]-a[j][x1-1]; ^ user.cpp:79:58: error: invalid types ‘int [1000002][double(double)throw ()]’ for array subscript if(a[j][y1]-a[j][x1-1]>maxx) maxx=a[j][y1]-a[j][x1-1]; ^