Did acdc write their own songs?

Yes, AC/DC wrote the majority of their own songs. The band's songwriting credits are primarily attributed to Angus Young and Malcolm Young, with occasional contributions from other members of the band. Angus and Malcolm Young are considered the primary songwriters for AC/DC, and they are credited with writing the majority of the band's hit songs, including "Highway to Hell," "Back in Black," and "Thunderstruck."