Cod sursa(job #2544975)

Utilizator mihnea.anghelMihnea Anghel mihnea.anghel Data 12 februarie 2020 18:56:22
Problema Sortare prin comparare Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.87 kb
#include <fstream>
#define f in
#define g out

using namespace std;
ifstream in ( "algsort.in" );
ofstream out( "algsort.out" );
int n, i, v[500005], w[500005];

void interclaseaza ( int st, int  mid, int dr ){
    int i = st, j = mid+1, k = st-1;
    while ( i <= mid && j <= dr ){
        if ( v[i] <= v[j] )
            w[++k] = v[i++];
        else w[++k] = v[j++];
    }
    for ( ; i <= mid; i++ )
        w[++k] = v[i];
    for ( ; j <= dr; j++ )
        w[++k] = v[j];
    for ( i = st; i <= dr; i++ )
        v[i] = w[i];
}

void sorteaza ( int st, int dr ){
    if ( st >= dr ) return;
    int mid = st+((dr-st)>>1);
    sorteaza( st, mid );
    sorteaza( mid+1, dr );
    interclaseaza ( st, mid, dr );
    
}

int main() {
    f>>n;
    for ( i=1; i <= n; i++ )
        f>>v[i];
    sorteaza ( 1, n );
    for ( i=1; i <= n; i++ )
        g<<v[i]<<" ";
    
    return 0;
}