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bac1/q2/algo/tp3/ExoArray.java

@@ -0,0 +1,77 @@
+import java.lang.Math;
+
+public class ExoArray {
+	public static void main(String[] args) {
+		int[] powers = new int[20], odds = new int[20], alterns = new int[20];
+		for (int i = 0; i < 20; i++) {
+			powers[i] = (int) Math.pow(2, i+1);
+			odds[i] = i * 2 + 1;
+			alterns[i] = (int)Math.pow(-1, i) * i;
+		}
+		display(powers);
+		System.out.println(ordered(powers));
+		display(odds);
+		System.out.println(ordered(odds));
+		display(alterns);
+		System.out.println(ordered(alterns));
+		System.out.printf("%d, %d, %d\n", sum(powers), sum(odds), sum(alterns));
+		System.out.printf("%.2f, %.2f, %.2f\n", average(powers), average(odds), average(alterns));
+	}
+
+	public static void display(int[] in){
+		String dis = "";
+		for(int i: in){
+			dis = dis + i + " ";
+		}
+		System.out.println(dis);
+	}
+
+	public static int sum(int[] in){
+		int sum = 0;
+		for(int i: in){
+			sum += i;
+		}
+		return sum;
+	}
+
+	public static float average(int[] in){
+		return sum(in)/in.length;
+	}
+
+	public static int[] zipSum(int[] in1, int[] in2){
+		if (in1.length != in2.length) // Fail Check
+			return null;
+
+		int[] ret = new int[in1.length];
+		for (int i = 0; i < in1.length; i++) {
+			ret[i] = in1[i] + in2[i];
+		}
+		return ret;
+	}
+
+	public static float[] zipAverage(int[] in1, int[] in2){
+		if (in1.length != in2.length) // Fail Check
+			return null;
+
+		float[] ret = new float[in1.length];
+		for (int i = 0; i < in1.length; i++) {
+			ret[i] = in1[i] + in2[i] / 2;
+		}
+		return ret;
+	}
+	
+	public static boolean ordered(int[] in){
+		for (int i = 1; i < in.length; i++) {
+			if(in[i] < in[i-1])
+				return false;
+		}
+		return true;
+	}
+	public static int max(int[] in){
+		int max = 0;
+		for (int i : in) {
+			max = max < i ? i : max;
+		}
+		return max;
+	}
+}