Compilare: user.cpp: In function ‘int Solvemin()’: user.cpp:39:13: warning: the address of ‘seen’ will always evaluate as ‘true’ [-Waddress] if(!seen) ^ user.cpp: In function ‘int Solvemax()’: user.cpp:64:13: warning: the address of ‘in’ will always evaluate as ‘true’ [-Waddress] if(!in) ^ user.cpp:73:13: warning: the address of ‘seen’ will always evaluate as ‘true’ [-Waddress] if(!seen) ^ user.cpp: In function ‘int main()’: user.cpp:83:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("paintball.in","r",stdin); ^ user.cpp:84:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("paintball.out","w",stdout); ^ user.cpp:86:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:88:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&nxt[i]); ^