Compilare: user.cpp: In function ‘int build(int, int, int)’: user.cpp:23:33: warning: control reaches end of non-void function [-Wreturn-type] aint[nod].poz=aint[nod*2+1].poz;} ^ user.cpp: In function ‘int updatee(int, int, int)’: user.cpp:38:33: warning: control reaches end of non-void function [-Wreturn-type] aint[nod].poz=aint[nod*2+1].poz;} ^ user.cpp: In function ‘int update(int, int, int)’: user.cpp:54:33: warning: control reaches end of non-void function [-Wreturn-type] aint[nod].poz=aint[nod*2+1].poz;} ^ user.cpp: In function ‘int main()’: user.cpp:56:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("biscuiti.in","r",stdin); ^ user.cpp:57:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("biscuiti.out","w",stdout); ^ user.cpp:59:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:61:57: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[i]),poz=i,num=v[i],build(1,1,n),rasp+=v[i]; ^