SOURCE

// const scores = [100, 100, 100]; // 3
const scores = [30,1,30,30]; // 3
const n = scores.length;
let res = 0;
const tmp = [];
for(let i=0;i<n;i++){
    tmp.push(scores[i]);
}
tmp.sort((a,b)=>a-b);
for(let i=0;i<n;i++){
    let lastIndex = tmp.lastIndexOf(scores[i])+1;
    let left = n-lastIndex;
    if (lastIndex>left){
        res++;
    }
}
console.log(res);