Compilare: user.cpp: In function ‘int main()’: user.cpp:18:17: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] crt = i + v[i / 8192] ^ v[i % 8192]; ^ user.cpp:11:13: warning: unused variable ‘j’ [-Wunused-variable] long i, j; ^ user.cpp:12:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("secv6.in", "r", stdin); ^ user.cpp:13:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("secv6.out", "w", stdout); ^ user.cpp:14:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%ld\n", &N); ^ user.cpp:16:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%ld\n", &v[i]); ^