Cod sursa(job #1835512)

Utilizator silkMarin Dragos silk Data 26 decembrie 2016 23:35:01
Problema Schi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.98 kb
#include <cstdio>
#define NMax 30000

int aib[NMax+1];
int pos[NMax+1];
int v[NMax+1];
int N;

void Update(int p, int x)
{
    while(p <= N)
    {
        aib[p] += x;
        p = p + ( p & (-p) );
    }
}

int Query(int p)
{
    int res=0;
    while(p > 0)
    {
        res += aib[p];
        p = p - ( p & (-p) );
    }
    return res;
}

int main(){
    freopen("schi.in","r",stdin);
    freopen("schi.out","w",stdout);

    int i,st,dr,mid,f,x;

    scanf("%d",&N);
    for(i = 1; i <= N; ++i) scanf("%d",&v[i]);
    for(i = 1; i <= N; ++i) Update(i,1);
    for(i = N; i >= 1; --i)
    {
        x = v[i];
        for(st = x, dr = N; st <= dr; )
        {
            mid = (st+dr)/2;
            if( Query(mid) > x ) dr = mid-1;
            else if( Query(mid) < x ) st = mid+1;
            else{ f = mid; dr = mid-1; }
        }
        Update(f,-1);
        pos[f] = i;
    }
    for(i = 1; i <= N; ++i) printf("%d\n",pos[i]);


return 0;
}