Giving Wrong answers

#1

Didnt understand the error?

#2

#include<bits/stdc++.h>
using namespace std;
int main(){
int x,y;
cin>>x;
cin>>y;
int max_xor=0;
for(int i=x,j=y;i<j;i++,j–){
int current=i^j;
if(current>max_xor){
max_xor=current;
}
}
cout<<max_xor;
}

#3

it says, that you have given 2 number x & y, you have to find 2 numbers between these x & y number inclusive such that result of these 2 numbers is maximum.

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#4

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