Eroare de compilare: user.cpp:6:32: error: ‘int log2 [100005]’ redeclared as different kind of symbol int dp[100005][18], log2[100005]; ^ 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/cstdio:41, from user.cpp:1: /usr/include/i386-linux-gnu/bits/mathcalls.h:146:1: error: previous declaration of ‘double log2(double)’ __MATHCALL (log2,, (_Mdouble_ __x)); ^ user.cpp: In function ‘int main()’: user.cpp:25:8: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript log2[1] = 0; ^ user.cpp:27:9: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript log2[i] = log2[i / 2] + 1; ^ user.cpp:27:23: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript log2[i] = log2[i / 2] + 1; ^ user.cpp:31:21: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript k = log2[y - x + 1]; ^ user.cpp:9:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("rmq.in", "r", stdin); ^ user.cpp:10:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("rmq.out", "w", stdout); ^ user.cpp:13:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ user.cpp:16:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &x); ^ user.cpp:30:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &x, &y); ^