Compilare: user.cpp: In function ‘void tipar(int)’: user.cpp:60:10: warning: unused variable ‘ok’ [-Wunused-variable] bool ok = true; ^ user.cpp: In function ‘int valid(int)’: user.cpp:94:11: warning: unused variable ‘ok’ [-Wunused-variable] int j,ok=1; //pp e valid ^ user.cpp: In function ‘int main()’: user.cpp:117:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bilete.in","r",stdin); ^ user.cpp:118:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bilete.out","w",stdout); ^ user.cpp:120:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:121:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&m); ^