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2,147,483,647 is max value of int in c++ and java (may b in other language also ) so when %(10^9+7) u can always store that value in int (as %(10^9+7)<10^9+7< 2,147,483,647 ) and your ans will not be unexpected (provided your logic is correct).
hope this help;
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Shashank and List
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2,147,483,647 is max value of int in c++ and java (may b in other language also ) so when %(10^9+7) u can always store that value in int (as %(10^9+7)<10^9+7< 2,147,483,647 ) and your ans will not be unexpected (provided your logic is correct). hope this help;