Compilare: user.cpp: In function ‘void mul(short int*, short int*)’: user.cpp:31:28: 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 ‘bool verify(int)’: user.cpp:93:13: warning: unused variable ‘xxx’ [-Wunused-variable] int xxx = 3; ^ user.cpp:108:13: warning: unused variable ‘xx’ [-Wunused-variable] int xx = 0; ^ user.cpp:113:9: warning: unused variable ‘xxxx’ [-Wunused-variable] int xxxx = 0; ^ user.cpp: In function ‘int main()’: user.cpp:165:25: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘short int*’ [-Wformat=] scanf("%d\n", &n); ^ user.cpp: In function ‘bool verify(int)’: user.cpp:114:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int cauta()’: user.cpp:136:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘void citeste(int)’: user.cpp:141:12: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(s); ^ user.cpp: In function ‘int main()’: user.cpp:160:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("largestroot.in", "r", stdin); ^ user.cpp:161:44: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("largestroot.out", "w", stdout); ^ user.cpp:162:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &T); ^ user.cpp:165:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &n); ^ /tmp/cc9TtUcw.o: In function `citeste(int)': user.cpp:(.text+0x656): warning: the `gets' function is dangerous and should not be used.