Compilare: user.cpp: In function ‘int main()’: user.cpp:37:37: 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:38:39: 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:39:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^ user.cpp:42:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld", &x,&y); ^ user.cpp:28:17: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] ans+=sol-1; ^ user.cpp:13:21: note: ‘sol’ was declared here int i,st,dr,mij,sol; ^ user.cpp:28:17: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] ans+=sol-1; ^ user.cpp:13:21: note: ‘sol’ was declared here int i,st,dr,mij,sol; ^