Eroare de compilare: user.c:2:1: error: unknown type name ‘using’ using namespace std; ^~~~~ user.c:2:17: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘std’ using namespace std; ^~~ user.c:8:1: error: unknown type name ‘bool’ bool a[NMAX][NMAX]; ^~~~ user.c: In function ‘main’: user.c:13:5: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("ture.in", "r", stdin); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ user.c:14:5: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("ture.out", "w", stdout); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ user.c:15:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &n, &m, &k); ^~~~~~~~~~~~~~~~~~~~~~~~~~~ user.c:16:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &p); ^~~~~~~~~~~~~~~ user.c:26:9: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &x, &y); ^~~~~~~~~~~~~~~~~~~~~