TRIPOLI, Libya — Libya’s deadly floods have sparked a surge of solidarity and transcended political differences in a country wracked by division ever since the 2011 revolution that overthrew Muammar Gaddafi. Othman Abdeljalil, the health minister in the administration that runs eastern Libya, has put the provisional death toll at 3,166. But getting aid to those who need it most is made more complicated by the east-west political split in Libya. Across the country fundraising is under way, and volunteer aid workers have rushed to the disaster area. AdvertisementThe prosecutor general visited Derna on Friday and pledged that those responsible for the disaster would be held to account.