Compilare: main.cpp: In function 'void input()': main.cpp:31:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( size_t i = 2 ; i <= n ; ++ i ) ~~^~~~ main.cpp: In function 'void rmq()': main.cpp:57:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( size_t i = 1 ; i <= cnt ; ++ i ) a [ i ][ 0 ] = i ; ~~^~~~~~ main.cpp:60:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( size_t i = 1 ; i + (1 << j ) < cnt ; ++ i ) ~~~~~~~~~~~~~~^~~~~ main.cpp:66:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( size_t i = 2 ; i <= cnt ; i <<= 1 ) lg [ i ] = 1 ; ~~^~~~~~ main.cpp:67:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( size_t i = 3 ; i <= cnt ; ++ i ) lg [ i ] += lg [ i - 1 ] ; ~~^~~~~~ main.cpp: In function 'void solve_tasks()': main.cpp:85:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( size_t i = 0 ; i < q ; ++ i ) ~~^~~