import java.util.Scanner;
class Main {
public static void main(String[] args) {
int M,N,k,i,x,j=0,w;
double prom =0;
Scanner teclado = new Scanner(System.in);
System.out.println("Cantidad de personas:");
M = teclado.nextInt();
System.out.println("Cantidad de numeros:");
N = teclado.nextInt();
int[] vector = new int[M*N];
for(w=0;w < vector.length; w++){
System.out.println("digite el dato: ");
vector[w] = teclado.nextInt();
}
double[] promedio = new double[M];
System.out.println("Digite k:");
k = teclado.nextInt();//cantidad de datos a promediar
i=(M*N)-1;//i = vector.length -1;
while(i >= 0){
for(x=0;x<k;x++){//Recorrer sub_Vector (k posiciones)
prom += vector[i];
i--;//Decrementar la i
}
promedio[j] = prom/k;
prom = 0;
j++;
i = i - (N-k);
}
for(w=0;w < promedio.length; w++){
System.out.print( String.format("%.2f",promedio[w]) + " ");
}
}
}
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