Compilare: user.c: In function ‘introducere_chei’: user.c:75:20: warning: unused variable ‘pozitie’ [-Wunused-variable] int i, nr = 0, pozitie; ^ user.c:75:9: warning: unused variable ‘i’ [-Wunused-variable] int i, nr = 0, pozitie; ^ user.c:74:19: warning: unused variable ‘token2’ [-Wunused-variable] char *token, *token2, *str; ^ user.c: In function ‘creare_string’: user.c:21:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(input, "%c", &string[i]); ^