For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/multimedia:libs/openSUSE_Tumbleweed/multimedia:libs.repo
zypper refresh
zypper install abseil-cpp
For openSUSE Slowroll run the following as root:
zypper addrepo https://download.opensuse.org/repositories/multimedia:libs/openSUSE_Slowroll/multimedia:libs.repo
zypper refresh
zypper install abseil-cpp
For 16.0 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/multimedia:libs/16.0/multimedia:libs.repo
zypper refresh
zypper install abseil-cpp
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/multimedia:libs/15.6/multimedia:libs.repo
zypper refresh
zypper install abseil-cpp