Question

How to get the total numbers with no repeated digits from a range of numbers in Node.js

Answer 1

function repeated_yes_0_no_1(n) {
    let st = new Set();
    
    while (n != 0) {
        let digit = n % 10;
        if (st.has(digit)) { // repeated = yes
            return 0;
        }
        st.add(digit);
        n = Math.floor(n / 10);
    }
    return 1;
}

function GetTotalNumbersWithNoRepeatedDigits(start, end) {
    let total = 0;
    
    for (let i = start; i <= end; i++) {
        total += repeated_yes_0_no_1(i);
    }
    return total;
}
        
const start = 1;
const end = 110;
        
console.log(GetTotalNumbersWithNoRepeatedDigits(start, end));




/*
run:

98

*/

 

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