Compilare: user.cpp: In function ‘int main()’: user.cpp:49:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("puteri4.in","r",stdin); ^ user.cpp:50:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("puteri4.out","w",stdout); ^ user.cpp:56:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &T); ^ user.cpp:59:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld", &x,&y); ^ user.cpp:41:28: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] else ans-=(Ans(x,i)-1)*(v[i]-1); ^ user.cpp:22:32: note: ‘sol’ was declared here int st=1,dr=1000000000,mij,sol; ^ user.cpp:40:36: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(!v[i]) ans+=(Ans(x,i))-1; ^ user.cpp:22:32: note: ‘sol’ was declared here int st=1,dr=1000000000,mij,sol; ^ user.cpp:41:28: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] else ans-=(Ans(x,i)-1)*(v[i]-1); ^ user.cpp:22:32: note: ‘sol’ was declared here int st=1,dr=1000000000,mij,sol; ^ user.cpp:40:36: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(!v[i]) ans+=(Ans(x,i))-1; ^ user.cpp:22:32: note: ‘sol’ was declared here int st=1,dr=1000000000,mij,sol; ^