Eroare de compilare: user.cpp:9:39: error: ‘int y1’ redeclared as different kind of symbol int limit, answer, x, y, val, x1, x2, y1, y2, d[MAXN]; ^ 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:243:1: error: previous declaration of ‘double y1(double)’ __MATHCALL (y1,, (_Mdouble_)); ^ user.cpp: In function ‘void query2D(aint2D*, int, int)’: user.cpp:84:14: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] if(y1 <= left && right <= y2) { ^ user.cpp:90:14: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] if(y1 <= middle && node->left != NULL) query2D(node->left, left, middle); ^ user.cpp: In function ‘int main()’: user.cpp:133:12: error: assignment of function ‘double y1(double)’ y1 = 1; ^ user.cpp:133:12: error: cannot convert ‘int’ to ‘double(double)throw ()’ in assignment user.cpp:136:30: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] if(x1 <= x2 && y1 <= y2) ^ user.cpp:108:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("sccm.in", "r", stdin); ^ user.cpp:109:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("sccm.out", "w", stdout); ^ user.cpp:113:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ user.cpp:117:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &x); ^ user.cpp:123:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &x); ^