Compilare: user.cpp: In function ‘int main()’: user.cpp:48:37: 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:49:39: 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:50:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^ user.cpp:53:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld", &x,&y); ^ user.cpp:40:17: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] ans+=sol-1; ^ user.cpp:26:25: note: ‘sol’ was declared here int st,dr,mij,exp,i,sol; ^ user.cpp:40:17: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] ans+=sol-1; ^ user.cpp:26:25: note: ‘sol’ was declared here int st,dr,mij,exp,i,sol; ^