Compilare: user.cpp: In function ‘int main()’: user.cpp:48:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] pos[initial[i]] = i; ^ user.cpp:54:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (pos[final[i]] > inc) { ^ user.cpp:55:31: warning: array subscript has type ‘char’ [-Wchar-subscripts] int aux = pos[final[i]]; ^ user.cpp:56:40: warning: array subscript has type ‘char’ [-Wchar-subscripts] ans += i - (aux - numx[final[i]]); ^ user.cpp:61:53: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (final[i] != k && pos[k] > pos[final[i]]) ^ user.cpp:64:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] --pos[final[i]]; ^ user.cpp:65:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] while (pos[final[i]] > inc && initial[pos[final[i]]] != final[i]){ ^ user.cpp:65:59: warning: array subscript has type ‘char’ [-Wchar-subscripts] while (pos[final[i]] > inc && initial[pos[final[i]]] != final[i]){ ^ user.cpp:66:39: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (pos[initial[pos[final[i]]]] < pos[final[i]]) ^ user.cpp:66:41: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (pos[initial[pos[final[i]]]] < pos[final[i]]) ^ user.cpp:66:57: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (pos[initial[pos[final[i]]]] < pos[final[i]]) ^ user.cpp:67:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] --numx[final[i]]; ^ user.cpp:68:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] --pos[final[i]]; ^ user.cpp:17:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("lru.in", "r", stdin); ^ user.cpp:18:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("lru.out", "w", stdout); ^ user.cpp:21:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &test); ^ user.cpp:31:46: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]