7)
Input:
[5, 2, 1, 3, 2, 4, 5]
Output:
1, 2, 3, 4, 5
let num = [5, 2, 1, 3, 2, 4, 5];
let result = [...new Set(num)].sort((a,b) => a - b);
console.log(result);
8)
Input:
4
Output:
30
let n = 4;
let sum = 0;
for(let i = 1;i<=n;i++){
sum += i*i // sum = 0 + (1*1) = 1 sum = 1 + (2*2) = 5
}
console.log(sum)
9)
Input:
["apple", "banana", "cherry"]
Output:
banana
let str = ["apple", "banana", "cherry"];
let result = "";
for(let word of str){
if(word.length > result.length){
result = word;
}
}
console.log(result);
10)
Input:
4
Output:
1
2 3
4 5 6
7 8 9 10
let n = 4;
let num = 1;
for(let i = 1; i<=n;i++){
let str = "";
for(let j = 1;j<=i;j++){
str += num + " ";
num++
}
console.log(str);
}
11)
Input:
"Heeello"
Output:
e
let str = "Heeello";
let result = {};
let count = 0;
let word = "";
for(let char of str){
result[char] = result[char] + 1 || 1;
if(result[char] > count){
count = result[char];
word = char;
}
}
console.log(word);
12)
Input:
5
Output:
1
2 2
3 3 3
4 4 4 4
5 5 5 5 5
let n = 5;
for(let i = 1; i <=n; i++){
let row = "";
for(let j = 1; j <=n - i; j++){
row += " ";
}
for(let k = 1; k <= i; k++){
row += i + " ";
}
console.log(row);
}
13)
Input:
12345
Output:
15
let n = 12345;
let result = 0;
while(n > 0){
let rem = n % 10;
result += rem;
n = Math.floor(n / 10);
}
console.log(result);
14)
Input:
12345
Output:
54321
let n = 12345;
let result = 0;
while(n > 0){
let rem = n % 10;
result = result * 10 + rem;
n = Math.floor(n / 10);
}
console.log(result);
15)
Input:
12321
Output:
true
let num = 12321;
let n = num;
let result = 0;
while(n > 0){
let rem = n % 10;
result = result * 10 + rem;
n = Math.floor(n / 10);
}
let result1 = num === result;
console.log(result1);
*/
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