Cod sursa(job #1049283)

Utilizator TarabanDragosTaraban Dragos-Petru TarabanDragos Data 7 decembrie 2013 10:08:18
Problema Sortare prin comparare Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.86 kb
#include<cstdio>
int v[500001],n,i,c[500001];
FILE *f,*g;
void intercl(int a,int m,int b){
    int i=1,j=m+1,k=a-1;
    while(i<=m&&j<=b){
        if(v[i]<v[j])
            c[++k]=v[i++];
        else
            c[++k]=v[j++];
    }
    for(;i<=m;i++){
        c[++k]=v[i];
    }
    for(;j<=b;j++){
        c[++k]=v[j];
    }
    for(i=1;i<=b;i++){
        v[i]=c[i];
    }
}
void sorteaza(int a,int b){
    if(a==b)
        return;
    else{
        int m=(a+b)/2;
        sorteaza(a,m);
        sorteaza(m+1,b);
        intercl(a,m,b);
    }
}
int main(){
    f=fopen("algsort.in","r");
    g=fopen("algsort.out","w");
    fscanf(f,"%d",&n);
    for(i=1;i<=n;i++){
        fscanf(f,"%d",&v[i]);
    }
    sorteaza(1,n);
    for(i=1;i<=n;i++){
        fprintf(g,"%d ",v[i]);
    }
    fclose(f);
    fclose(g);
    return 0;
}