Error in the question of fractional knapsack

#1

this is my code error is in sort function kindly tell me how to correct it

#2

hello @simi_1188
declare ur cmp function after the definition of structure.

#3

while submitting it is showing runtime error
https://practice.geeksforgeeks.org/problems/fractional-knapsack/0

#4

declare ur vector like->
vector a(n); // this will create vector of size n

also they were asking to print upto 2 decimal precision
so added cout<<fixed<<setprecision(2)<<output; // to print output upto 2 decimal

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#5

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