Error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<='

Question

My code:

#include <iostream>
#include <bits/stdc++.h>
using namespace std;

int main() {
    int t;
    cin >> t;
    while( t-- ) {
        int n, x = 0;
        cin >> n;
        if(n % 2 == 0)
            cout << n/2 <<" "<< n/2 << endl;
        else
            int min = INT_MAX;
        for(int i = 1; i*i <= n; i++) {
            if(( n-i) % i == 0) {
                int d = (n-i) / i;
                if(d <= min) {
                    min = d;
                    x = i;
                }
            }
        }
        cout << x <<" "<< n-x <<endl;    
    }
    // your code goes here
    return 0;
}

The code gives some typical error which I am failing to deal with.

Please can anyone help me fix it.

C:\Users\HP\Desktop\Code\hello.cpp:21:20: error: invalid operands of types 'int'
and '' to binary 'operator<=' 21 | if(d<=min) | ~^~~~~

Answer 1

The problem is that you missed {} for else case in:

else
    int min=INT_MAX;
    for(int i=1;i*i<=n;i++)

Because of that, the scope of int min is limited to the single line where it is defined. In if(d<=min) , the compiler is seeing std::min() function template instead (this is because you wrote using namespace std; which is not recommended).