Compilare: user.cpp: In function ‘void load(long long int, int*)’: user.cpp:59:21: warning: argument to ‘sizeof’ in ‘void* memset(void*, int, size_t)’ call is the same expression as the destination; did you mean to dereference it? [-Wsizeof-pointer-memaccess] memset(A, 0, sizeof(A)); ^ user.cpp: In function ‘void sub(int*, int*)’: user.cpp:75:16: warning: unused variable ‘tt’ [-Wunused-variable] int i, t = 0, tt = 0; ^ user.cpp: In function ‘int main()’: user.cpp:124:16: warning: variable ‘norig’ set but not used [-Wunused-but-set-variable] long long n, norig; ^ user.cpp:117:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( FILE_IN, "r", stdin ); ^ user.cpp:118:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( FILE_OUT, "w", stdout ); ^ user.cpp:121:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^ user.cpp:125:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld", &n); ^ user.cpp: At global scope: user.cpp:33:21: warning: ‘float randf()’ declared ‘static’ but never defined [-Wunused-function] static float inline randf(); ^ user.cpp:34:21: warning: ‘float randfr()’ declared ‘static’ but never defined [-Wunused-function] static float inline randfr(); ^