What is the prbl=blem in my code

#1
#2

@Piyush-Pandey-2580479718941914 it seems to work fine, just omit this part
#ifndef ONLINE_JUDGE

    freopen("input.txt", "r", stdin);

    freopen("output.txt", "w", stdout);

#endif

rest is all good

#3

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#4

thanks for resolving my doubt

#5

@Piyush-Pandey-2580479718941914 Welcome