Cod sursa(job #2906710)

Utilizator 0SiSBesliu Radu-Stefan 0SiS Data 27 mai 2022 01:22:37
Problema Sortare prin comparare Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.7 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("algsort.in");
ofstream fout("algsort.out");
int v[500000];
void mergeSort(int st, int dr){
    int m=(st+dr)/2;
    if(st<dr){
        mergeSort(st, m);
        mergeSort(m+1, dr);
    }
    int i=st, j=m+1, k=0, t[dr-st+1];
    while(i<=m && j<=dr) {
        if (v[i] < v[j]) t[k++] = v[i++];
        else t[k++] = v[j++];
    }
    while(i<=m) t[k++] = v[i++];
    while(j<=dr) t[k++] = v[j++];
    k=0;
    for(i=st; i<=dr; i++)
        v[i] = t[k++];
}
 
 
 
int main() {
    int n;
    fin>>n;
    for(int i=0;i<n;i++) fin>>v[i];
    mergeSort(0,n-1);
    for(int i=0;i<n;i++) fout<<v[i]<<' ';
    return 0;
}