There are N cricketers in an academy. Each player practices for some time in the nets $($only $1$ net is present$).$To solve the time collision issue, the coach is using a calender application. Now there is one new addition in the academy. Given the practice slots of N cricketers, give all suggestions of the time frame available for practice.Note: $($The net is available all day,with practice hours described as $0-1000000000)$TaskFind all the empty time frames, If no time frames are available return $[-1-1].$ExampleAssumptions