Eroare de compilare: main.cpp:9:26: error: 'int index [5000000]' redeclared as different kind of symbol int arr[MAXN], index[MAXN]; ^ In file included from /usr/include/c++/6/cstring:42:0, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:48, from main.cpp:3: /usr/include/string.h:477:1: note: previous declaration 'const char* index(const char*, int)' index (const char *__s, int __c) __THROW ^~~~~ main.cpp: In function 'void push_front(int, int)': main.cpp:22:18: error: invalid types '<unresolved overloaded function type>[int]' for array subscript index[arr_start] = i; ^ main.cpp: In function 'void push_back(int, int)': main.cpp:36:16: error: invalid types '<unresolved overloaded function type>[int]' for array subscript index[arr_end] = i; ^ main.cpp: In function 'int front(int*, int*)': main.cpp:46:23: error: invalid types '<unresolved overloaded function type>[int]' for array subscript *i = index[arr_start]; ^ main.cpp: In function 'int end(int*, int*)': main.cpp:57:21: error: invalid types '<unresolved overloaded function type>[int]' for array subscript *i = index[arr_end]; ^ main.cpp: In function 'int main()': main.cpp:92:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d", &n, &k ); ^ main.cpp:95:28: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &x ); ^ main.cpp:104:28: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &x ); ^ Non zero exit status: 1