Eroare de compilare: user.cpp:7:29: error: ‘int log2 [100005]’ redeclared as different kind of symbol int n, m, a[NMAX], log2[NMAX], sparce[NMAX][LOGMAX]; ^ In file included from /usr/include/features.h:367:0, from /usr/include/x86_64-linux-gnu/c++/5/32/bits/os_defines.h:39, from /usr/include/x86_64-linux-gnu/c++/5/32/bits/c++config.h:482, from /usr/include/c++/5/cstdio:41, from user.cpp:1: /usr/include/bits/mathcalls.h:144:1: note: previous declaration ‘double log2(double)’ __MATHCALL (log2,, (_Mdouble_ __x)); ^ user.cpp: In function ‘int main()’: user.cpp:23:15: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript log2[i] = log2[i/2] + 1; ^ user.cpp:23:27: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript log2[i] = log2[i/2] + 1; ^ user.cpp:42:19: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript k = log2[l]; ^ user.cpp:11:21: warning: unused variable ‘index’ [-Wunused-variable] int x, y, i, j, index, l, k; ^ user.cpp:16:33: 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:17:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d ", &a[0]); ^ user.cpp:20:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d ", &a[i]); ^ user.cpp:38:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d", &x, &y); ^