Compilare: main.cpp: In function 'void solve()': main.cpp:261:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ( ord.size ( ) < ( n + 3 ) ) { ord.push_back ( 0 ) ; } ~~~~~~~~~~~~~^~~~~~~~~~~ main.cpp: In function 'void input()': main.cpp:240:42: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf ( "%d%d" , &output_type , &n ) ; ^ main.cpp:244:43: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf ( "%d%d%d" , &x , &y , &z ) ; ^ main.cpp:251:43: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf ( "%d%d%d" , &x , &y , &z ) ; ^