Eroare de compilare: user.cpp:4:41: error: ‘int log2 [100001]’ redeclared as different kind of symbol int dp[100001][20],a[100001],log2[100001]; ^ 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:18:11: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript log2[1]=0; ^ user.cpp:20:15: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript log2[i]=log2[i/2]+1; ^ user.cpp:20:25: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript log2[i]=log2[i/2]+1; ^ user.cpp:24:21: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript k=log2[y-x+1]; ^ user.cpp:7:32: 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:8:34: 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:10:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:12:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&a[i]); ^ user.cpp:23:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^