Compilare: user.cpp: In function ‘void Salv()’: user.cpp:41:13: warning: unused variable ‘k’ [-Wunused-variable] int i,j,k; ^ user.cpp: In function ‘int Telep(int)’: user.cpp:16:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘void Read()’: user.cpp:20:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bridge.in","r",stdin); ^ user.cpp:21:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&n,&m); ^ user.cpp:25:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&b[i]); ^ user.cpp:30:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&d[poz[i]]); ^ user.cpp: In function ‘void Quest()’: user.cpp:75:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bridge.out","w",stdout); ^ user.cpp:78:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&x,&y); ^