Eroare de compilare: main.cpp:8:32: error: 'int index [100005]' redeclared as different kind of symbol int costs[100005], index[100005], nums[100005], dp[20][20][4], smax[100005], needed[100005], keep[100005]; ^ 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:1: /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 'int main()': main.cpp:34:20: error: invalid types '<unresolved overloaded function type>[int]' for array subscript index[i] = k; ^ main.cpp:39:20: error: invalid types '<unresolved overloaded function type>[int]' for array subscript if(!index[i]) continue; ^ main.cpp:42:24: error: invalid types '<unresolved overloaded function type>[int]' for array subscript if(!index[j]) continue; ^ main.cpp: In function 'void dfs(int, int, bool)': main.cpp:65:17: error: invalid types '<unresolved overloaded function type>[int]' for array subscript if(index[now]){ ^ main.cpp:71:29: error: invalid types '<unresolved overloaded function type>[int]' for array subscript int i1 = index[start], i2 = index[now]; ^ main.cpp:72:16: error: 'i2' was not declared in this scope dp[i1][i2][0] += find_max(1, l); ^~ main.cpp:81:28: error: invalid types '<unresolved overloaded function type>[int]' for array subscript int i = index[start]; ^ Non zero exit status: 1