Cod sursa(job #2897333)

Utilizator anaella2010Chiriac Ella anaella2010 Data 3 mai 2022 14:53:30
Problema Sortare prin comparare Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.81 kb
#include <iostream>
#include <fstream>
#define NMAX 500000
using namespace std;
ifstream f("algsort.in");
ofstream g("algsort.out");
int n, arr[NMAX];
void quicksort(int inf, int sup) {
    int x, i, j, t;
    i = inf;
    j = sup;
    x = arr[(i + j) / 2];
    do {
        while ( (i < sup) && (arr[i] < x) ) i++;
        while ( (j > inf) && (arr[j] > x) ) j--;
        if ( i <= j ) {
            t = arr[i];
            arr[i] = arr[j];
            arr[j] = t;
            i++;
            j--;
        }
    } while ( i <= j );
    if ( inf < j ) quicksort(inf, j);
    if ( i < sup ) quicksort(i, sup);
}

int main() {

    f>>n;
    for(int i=0;i<n;i++){
        f>>arr[i];
    }

    quicksort(0, n-1);

    for(int i=0; i<n; i++){
        g<<arr[i]<<" ";
    }
    return 0;
}