Cod sursa(job #2209845)

Utilizator flaviu_2001Craciun Ioan-Flaviu flaviu_2001 Data 4 iunie 2018 21:43:17
Problema Schi Scor 90
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.88 kb
#include <bits/stdc++.h>

using namespace std;

int n, v[30005], aib[30005], sol[30005];

void update(int idx, int val)
{
    while(idx <= n){
        aib[idx] += val;
        idx += (idx&(-idx));
    }
}

int read(int idx)
{
    int sum = 0;
    while(idx){
        sum += aib[idx];
        idx -= (idx&(-idx));
    }
    return sum;
}

int main()
{
    freopen("schi.in", "r", stdin);
    freopen("schi.out", "w", stdout);
    scanf("%d", &n);
    for (int i = 1; i <= n; ++i)
        scanf("%d", &v[i]);
    for (int i = n; i >= 1; --i){
        int x = v[i];
        int lo = 1, hi = n, m, ans;
        for (m = (lo+hi)>>1; lo <= hi; m = (lo+hi)>>1)
            if(m-read(m) >= x){
                ans = m;
                hi = m-1;
            }else lo = m+1;
        sol[ans] = i;
        update(ans, 1);
    }
    for (int i = 1; i <= n; ++i)
        printf("%d\n", sol[i]);
    return 0;
}