<Calculate project total min coast based on the bi...

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Calculate project total min coast based on the bid amount given by developer for each project : Interview Question
Calculate project total min coast based on the bid amount given by the developer for each project If there is no kind of bid placed for any project then return -1, This means, there must be at least 1 bid for each project or return of -1.
Output

For Project 0 : Comparing bid amount of Dollar 8 with Dollar 100
For Project 1 : Comparing bid amount of Dollar 35 with Dollar 20
For Project 2 : Comparing bid amount of Dollar 10 with Dollar 25
Min cost for All projects is 38...