Traffic Lights(gfg-weekly-158-rated-contest-cpp+java+javaScript+easy explanation)

Publicado el: 10 junio 2024
en el canal de: mathematics_rajkumar
317
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question link:https://practice.geeksforgeeks.org/co...
java code:https://github.com/Varthya/POTDGFG/bl...

Traffic Lights
Accuracy: 40.67% Submissions: 4K+ Points: 20
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You are responsible for managing the traffic lights on a long stretch of highway. Initially, all traffic lights on the highway are set to red. There are n traffic lights in total. You will be given q queries, each of which instructs you to change the signal of a segment of the traffic lights.
Each query specifies two indices [aj, bi], indicating that all traffic lights from a; to b; (both inclusive) should change their signals in the following manner:
• A red light ('R') changes to yellow ("Y"). • A yellow light ("Y") changes to green ('G'). • A green light ('G') changes to red ('R').
Return a string of length n with the final state of all n traffic lights where the ith character in the string denotes the state of the ith traffic
light after all the queries have been processed in the given order.


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