Compilare: user.cpp: In function ‘void spirala(int)’: user.cpp:33:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, s, t, d, k, L, K; ^ user.cpp:33:15: warning: unused variable ‘s’ [-Wunused-variable] int i, j, s, t, d, k, L, K; ^ user.cpp:33:21: warning: unused variable ‘d’ [-Wunused-variable] int i, j, s, t, d, k, L, K; ^ user.cpp: In function ‘int main()’: user.cpp:75:12: warning: unused variable ‘k’ [-Wunused-variable] int n, k, i, j, s, t, d, ok, ma, ma2, RASP, KKK; ^ user.cpp:75:21: warning: unused variable ‘s’ [-Wunused-variable] int n, k, i, j, s, t, d, ok, ma, ma2, RASP, KKK; ^ user.cpp:72:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("spirala2.in","r",stdin); ^ user.cpp:73:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("spirala2.out","w",stdout); ^ user.cpp:78:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&KKK); ^