Eroare de compilare: user.cpp:9:9: error: ‘int j0’ redeclared as different kind of symbol int i0, j0, is1, js1, is2, js2, ir1, jr1, ir2, jr2; ^ 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/iosfwd:38, from /usr/include/c++/4.8/ios:38, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/i386-linux-gnu/bits/mathcalls.h:239:1: error: previous declaration of ‘double j0(double)’ __MATHCALL (j0,, (_Mdouble_)); ^ user.cpp: In function ‘bool ok(int, int)’: user.cpp:59:17: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] if (i==i0 && j==j0) ^ user.cpp: In function ‘bool zap(int, int)’: user.cpp:75:19: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] if (j<=jv && jv<j0) ^ user.cpp:78:10: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] if (j0<jv && jv<= j) ^ user.cpp:82:17: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] if (jv==j && j==j0) ^ user.cpp:91:33: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] if (i>iv && iv>i0 && jv>j && j0>jv && (i-i0)*(jv-j)==(i-iv)*(j0-j) ) ^ user.cpp:91:65: warning: pointer to a function used in arithmetic [-Wpointer-arith] if (i>iv && iv>i0 && jv>j && j0>jv && (i-i0)*(jv-j)==(i-iv)*(j0-j) ) ^ user.cpp:91:66: error: invalid operands of types ‘int’ and ‘double (*)(double)throw ()’ to binary ‘operator*’ if (i>iv && iv>i0 && jv>j && j0>jv && (i-i0)*(jv-j)==(i-iv)*(j0-j) ) ^ user.cpp:94:25: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] if (i0>iv && iv>i && jv>j0 && j>jv && (i0-i)*(jv-j0)==(i0-iv)*(j-j0) ) ^ user.cpp:94:50: error: invalid operands of types ‘int’ and ‘double(double)throw ()’ to binary ‘operator-’ if (i0>iv && iv>i && jv>j0 && j>jv && (i0-i)*(jv-j0)==(i0-iv)*(j-j0) ) ^ user.cpp:94:66: error: invalid operands of types ‘int’ and ‘double(double)throw ()’ to binary ‘operator-’ if (i0>iv && iv>i && jv>j0 && j>jv && (i0-i)*(jv-j0)==(i0-iv)*(j-j0) ) ^ user.cpp:97:25: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] if (i0>iv && iv>i && j0>jv && jv>j && (i0-i)*(jv-j)==(j0-j)*(iv-i) ) ^ user.cpp:97:58: warning: pointer to a function used in arithmetic [-Wpointer-arith]