Eroare de compilare: user.cpp:11:20: error: ‘int y0’ redeclared as different kind of symbol int N, n, m, x0=1, y0=1; ^ In file included from /usr/include/features.h:357:0, from /usr/include/assert.h:37, from /usr/include/c++/4.8/cassert:43, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:33, from user.cpp:1: /usr/include/i386-linux-gnu/bits/mathcalls.h:242:1: error: previous declaration of ‘double y0(double)’ __MATHCALL (y0,, (_Mdouble_)); ^ user.cpp: In function ‘void matrice()’: user.cpp:59:21: warning: pointer to a function used in arithmetic [-Wpointer-arith] a[i+y0][j+x0]=1; ^ user.cpp:59:23: error: invalid types ‘bool [170][170][double (*)(double)throw ()]’ for array subscript a[i+y0][j+x0]=1; ^ user.cpp: In function ‘int main()’: user.cpp:82:43: error: ISO C++ forbids decrementing a pointer of type ‘double (*)(double)throw ()’ [-fpermissive] if((v[r].b==0)||(v[r].d==0))y0--; ///cu un varf pe Ox sau Oy sau in O ^ user.cpp:82:43: error: lvalue required as decrement operand user.cpp:74:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &N); ^ user.cpp:75:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &n, &m); ^ user.cpp:77:47: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d%d",&xa,&xb,&xc,&xd); ^