function findFirstSmallerNumberToTheLeft(arr:number[]) {
const size = arr.length;
let s = "";
for (let i = 0; i < size; i++) {
let first_smaller_number_to_the_left = -1; // if not found write -1
for (let j = i - 1; j >= 0; j--) {
if (arr[j] < arr[i]) {
first_smaller_number_to_the_left = arr[j];
break;
}
}
s += first_smaller_number_to_the_left + " ";
}
console.log(s);
}
const arr = [ 2, 6, 3, 7, 8, 1, 9, 0, 13, 19, 18 ];
// 2:-1 // 6:2 // 3:2 // 7:3 // 8:7 // 1:-1 // 9:1 // 0:-1 // 13:0 // 19:13 // 18:13
findFirstSmallerNumberToTheLeft(arr);
/*
run:
"-1 2 2 3 7 -1 1 -1 0 13 13 "
*/