Cod sursa(job #1266705)

Utilizator victormarinMarin Victor victormarin Data 19 noiembrie 2014 00:01:22
Problema Schi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.35 kb
#include <cstdio>
#define filein "schi.in"
#define fileout "schi.out"
using namespace std;

int v[30001],aib[30001],sol[30001];
int N;

void ReadData();
void PrintData();

inline int LSB(int x);
void Update(int poz, int val);
int Query(int b);
int BIN_SEARCH(int st, int dr, int val);

int main()
{
    ReadData();
    int aux;
    register int i;
    for (i=N; i; i--)
    {
        aux=BIN_SEARCH(1,N,v[i]);
        sol[aux]=i;
        Update(aux,-1);
    }
    PrintData();
    return 0;
}

void ReadData()
{
    FILE *in;
    in=fopen(filein,"r");
    register int i;
    fscanf(in,"%d",&N);
    for (i=1; i<=N; i++)
    {
        fscanf(in,"%d",v+i);
        Update(i,1);
    }
    fclose(in);
}

void PrintData()
{
    FILE *out;
    out=fopen(fileout,"w");
    register int i;
    for (i=1; i<=N; i++)
        fprintf(out,"%d\n",sol[i]);
    fclose(out);
}

inline int LSB(int x)
{
    return x&-x;
}

void Update(int poz, int val)
{
    for (; poz<=N; poz+=LSB(poz))
        aib[poz]+=val;
}

int Query(int b)
{
    int s=0;
    for (; b; b-=LSB(b))
        s+=aib[b];
    return s;
}

int BIN_SEARCH(int st, int dr, int val)
{
    int mij;
    while (st<=dr)
    {
        mij=(st+dr)>>1;
        if (val<=Query(mij))
            dr=mij-1;
        else st=mij+1;
    }
    return st;
}