Compilare: user.cpp: In function ‘void upd(int, int, int, int, int)’: user.cpp:2:16: warning: left shift count >= width of type [enabled by default] #define INF 1<<61 ^ user.cpp:30:22: note: in expansion of macro ‘INF’ if (v[2*nod].s!=-INF && v[2*nod+1].s!=-INF) ^ user.cpp:2:16: warning: left shift count >= width of type [enabled by default] #define INF 1<<61 ^ user.cpp:30:44: note: in expansion of macro ‘INF’ if (v[2*nod].s!=-INF && v[2*nod+1].s!=-INF) ^ user.cpp:33:36: warning: suggest parentheses around ‘+’ inside ‘<<’ [-Wparentheses] sum=v[2*nod].s+v[2*nod+1].s+INF; ^ user.cpp: In function ‘int main()’: user.cpp:2:16: warning: left shift count >= width of type [enabled by default] #define INF 1<<61 ^ user.cpp:69:38: note: in expansion of macro ‘INF’ v[i].s=v[i].m=v[i].l=v[i].r=-INF; ^ user.cpp:67:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lld%lld",&n,&m); ^ user.cpp:72:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lld",&x); ^ user.cpp:76:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lld%lld",&a,&b); ^