Compilare: main.cpp: In function 'int main()': main.cpp:35:25: warning: converting to non-pointer type 'char' from NULL [-Wconversion-null] cuvAux[j] = NULL; ^~~~ main.cpp:37:29: warning: converting to non-pointer type 'char' from NULL [-Wconversion-null] cuvAux[j = 0] = NULL; ^~~~ main.cpp:49:29: warning: converting to non-pointer type 'char' from NULL [-Wconversion-null] cuvAux[j] = NULL; ^~~~ main.cpp:64:33: warning: converting to non-pointer type 'char' from NULL [-Wconversion-null] cuvAux[j = 0] = NULL; ^~~~ main.cpp:25:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("mesaje.in", "r", stdin); ^ main.cpp:26:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("mesaje.out", "w", stdout); ^ main.cpp:28:28: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fgets(c, MAXCAR, stdin); ^