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Cod sursa(job #572893)
#include <stdio.h>
#include <fstream.h>
#define DIM 500001
ifstream f("algsort.in");
FILE *g=fopen("algsort.out","w");
long n;
long v[DIM];
long pos(long i,long j){
long ii=0,jj=-1,aux;
while(i!=j){
if(v[i]>v[j]){
aux=v[i];
v[i]=v[j];
v[j]=aux;
aux=ii;
ii=-jj;
jj=-aux;
}
i+=ii;
j+=jj;
}
return i;
}
void quick(long p,long u){
if(p<u){
long k=pos(p,u);
quick(p,k-1);
quick(k+1,u);
}
}
int main(void){
register int i;
f>>n;
for(i=1;i<=n;i++){
f>>v[i];
}
quick(1,n);
for(i=1;i<=n;i++){
fprintf(g,"%ld ",v[i]);
}
f.close();
fclose(g);
return 0;
}