Adds benchmark details.

Adds the full suite of contest benchmarks.

Ensures that usage values for edges are zeroed out.

Updates iopddl.h so that 'Strategy' and 'Interval' types are unnested.

Adds a IOPDDL_ prefix to the header guard

Adds a IOPDDL_ prefix to the header guard

Increases the usage limit of benchmark Y from 34732519424 to 63301646773

Adds #include <iostream> (for std::cout and std::endl)

Adds #include <iostream> (for std::cout and std::endl)

Adds #include <cstdlib> (for atoi)

Updates the command-line utility to produce [] if no solution is found.

Minor changes to README.md

Clarifies interpretation of usage intervals

Initial commit

Creates README.md