in a array of [5,10,15,20,40]. we need to check the number with % and if we get 5 and 10 then we will take it in 10% and print it 1 so for 10 to 20 we consider as 20% and check the number if we get any number from there then we will increase the number like wise we need to calculate. for example [ 10, 4, 40, 50, 70] the max number is 100 so that's the 100th% and the result should be [1, 1, 0, 1, 1, 0, 1, 0, 0, 0] there is 1 element in 0-10% (4), 1 in 10-20% (10), none in 20-30%, and so forth. –
function calculating_marks(x) {
for (let i = 0; i < x.length; i++) {
x[i] <= 10 ? console.log("1") : console.log("0")
x[i] > 10 && x[i] <= 20 ? console.log("1") : console.log("0")
x[i] > 20 && x[i] <= 30 ? console.log("1") : console.log("0")
x[i] > 30 && x[i] <= 40 ? console.log("1") : console.log("0")
x[i] > 40 && x[i] <= 50 ? console.log("1") : console.log("0")
x[i] > 50 && x[i] <= 60 ? console.log("1") : console.log("0")
}
}
marks = [5,10,20,30,35,50]
calculating_marks(marks)
This might be a solution to your question, I hope it solves your problem:
function calculating_marks(marks) {
const marksResult = Array(10).fill(0);
for (const mark of marks) {
let markConverted = Math.floor(mark/10) - 1;
if(markConverted === -1){
markConverted++;
}
marksResult[markConverted]++;
}
return marksResult;
}
let marks = [5,10,20,30,35,50]
let marksConverted = calculating_marks(marks)
console.log(marksConverted)
Save in a array and plus if true
function calculating_marks(x) {
// count for 10%,20%,.....100%
var count = [0,0,0,0,0,0,0,0,0,0];
for (let i = 0; i < x.length; i++) {
x[i] <= 10 ? count[0]++ :
x[i] > 10 && x[i] <= 20 ? count[1]++ :
x[i] > 20 && x[i] <= 30 ? count[2]++ :
x[i] > 30 && x[i] <= 40 ? count[3]++ :
x[i] > 40 && x[i] <= 50 ? count[4]++ :
x[i] > 50 && x[i] <= 60 ? count[5]++ : false
}
console.log(count);
}
marks = [5,10,20,30,35,50]
calculating_marks(marks)
//Result (10) [2,1,1,1,1,0,0,0,0,0]
Here is possible approach with inline comments:
// Your function with custom calculation
const weirdCalculator = arr => {
// Find largest number
const largest = arr.sort((a,b) => a-b).reverse()[0];
// Find 10% of largest number
const p10 = Math.round(largest / 10);
// Create result array
const res = [];
// Loop 10 times
for(let i = 1; i <= 10; i++) {
// With each new iteration add 10% and check
// all numbers, passed to function, in loop
// Calculate current range
const currentRange = [(i - 1) * p10, i * p10];
// Reset current iteration counter
let counter = 0;
// Loop numbers, passed to function
// If number in current range - increase counter
for(const num of arr) if(num > currentRange[0] && num <= currentRange[1]) counter++;
// Push counter to result array
res.push(counter);
}
// Return result
return res;
}
// Run function
const result = weirdCalculator([5,10,20,31,34,50]);
// Test
console.log(result);