election-day/task_4: prevent collateral changes

exercism / cpp

Exercism exercises in C++.

https://exercism.org/tracks/cpp

MIT License

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election-day/task_4: prevent collateral changes #708

Closed siebenschlaefer closed 1 year ago

siebenschlaefer commented 1 year ago

Currently many solutions modify not only the result of the winner but also other results in the process.
This fix prevents those changes by adding another test.