Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:60:9: error: expected ‘;’ before ‘fscanf’ fscanf(fin, "%d%d%d", &op, &a, &b); ^ user.cpp:60:43: warning: statement is a reference, not call, to function ‘printf’ [-Waddress] fscanf(fin, "%d%d%d", &op, &a, &b); ^ user.cpp:60:43: warning: statement has no effect [-Wunused-value] user.cpp:49:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &N, &M); ^ user.cpp:51:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &v[i]); ^