Compilare: user.cpp: In function ‘bool arethesame()’: user.cpp:53:7: warning: statement has no effect [-Wunused-value] val==false; ^ user.cpp: In function ‘void s1extra()’: user.cpp:63:30: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if(pos=smaller(A[i]-'a'+1)) ^ user.cpp: In function ‘void s2extra()’: user.cpp:94:29: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if(pos=bigger(A[i]-'a'+1)) ^ user.cpp: In function ‘int main()’: user.cpp:234:7: warning: unused variable ‘v’ [-Wunused-variable] bool v=true; ^ user.cpp: In function ‘void Read()’: user.cpp:11:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%c",&lenght,&null); ^ user.cpp:14:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%c",&A[i]); ^ user.cpp:17:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%c",&null); ^ user.cpp:20:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%c",&B[i]); ^ user.cpp: In function ‘int main()’: user.cpp:230:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("vecini2.in","r",stdin); ^ user.cpp:231:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("vecini2.out","w",stdout); ^