20 1 1 5---1-----2-----3 \ / 1 \ / 1 \ / -4-
5 5 1 2 1 2 3 1 3 4 1 4 1 1 1 5 20
prog.cpp:4:3: error: stray ‘\’ in program \ / ^ prog.cpp:5:4: error: stray ‘\’ in program 1 \ / 1 ^ prog.cpp:6:5: error: stray ‘\’ in program \ / ^ prog.cpp:2:3: error: expected unqualified-id before numeric constant 20 1 1 ^~
Standard output is empty