long long unsigned has range 0 to 18,446,744,073,709,551,615 which is large than constraint 10^18. then why wrong answer.
WHy wrong answer is comming
Hello @mdj int can handle numberrs upto 1e9 and long long can handle upto 1e18.
there is no need to use unsigned int .
please share your code i will see what is the mistake.
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