42 lines
961 B
Java
42 lines
961 B
Java
import java.util.Scanner;
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public class Lab_1 {
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public static void main(String[] args) {
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int n, m, a, b;
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float s = 0;
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Scanner input = new Scanner(System.in);
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System.out.print("Enter n: ");
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n = input.nextInt();
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System.out.print("Enter m: ");
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m = input.nextInt();
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do {
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System.out.print("Enter a (can't be above n): ");
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a = input.nextInt();
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} while (a > n);
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do {
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System.out.print("Enter b (can't be above m): ");
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b = input.nextInt();
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} while (b > m);
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input.close();
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if ((a <= 0) && (n >= 0)) {
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System.out.println("Error, division by zero, shutting down!");
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System.exit(1);
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}
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for (int i = a; i < n; i++) {
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for (int j = b; j < m; j++) {
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s += i * j / i;
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}
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}
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System.out.println("S = " + s);
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}
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}
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