let(nodes,source,edges)=parse_graph(input.into()).expect("PANIC: Couldn't read input file for 64M benchmark. Currently, this benchmark uses a hard-coded path, so it can only be run on the lab machines.");
let(nodes,source,edges)=parse_graph(input.into()).expect("PANIC: Couldn't read input file for 64M benchmark. Currently, this benchmark uses a hard-coded path, so it can only be run on the lab machines.");