Question: Suppose that an airline must reduce its flight schedule to save money. If its original routes are as illustrated here, which flights can be discontinued

Suppose that an airline must reduce its flight schedule to save money. If its original routes are as illustrated here, which flights can be discontinued to retain service between all pairs of cities (where it may be necessary to combine flights to fly from one city to another)?

Bangor Detroit Boston Seattle Chicago New York San Denver Francisco Washington Atlanta Los St. Louis Angeles San DiegoDalas

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