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lab9/task1.c

+#include <stdio.h>
+#include <conio.h>
+#include <math.h>
+
+int add(int a, int b);
+int subt(int c, int d);
+int mult(int e, int f);
+float div(float g, float h);
+
+int main()
+{
+	int x;
+	int y;
+	int sum;
+	int difference;
+	int product;
+	float quotient;
+	
+	printf("Enter two integers:");
+	scanf("%d\n", &x);
+	scanf("%d", &y);
+	
+	int choice;
+	
+	printf("select a calculation 1 to add, 2 to subtract, 3 to multiply, 4 to divide: ");
+	scanf("%d",&choice);
+	
+	switch(choice)
+	{
+		case 1:
+			sum = add(x, y);
+			printf("%d", sum);
+			break;
+			
+		case 2:
+			difference = subt(x, y);
+			printf("%d", difference);
+			break;
+			
+		case 3:
+			product = mult(x, y);
+			printf("%d", product);
+			break;
+			
+		case 4:
+			quotient = div(x, y);
+			printf("%f", quotient);
+			break;
+			
+		default:
+			printf("invalid! \n out of bounds!! ");
+			break;
+	}
+	return 0;
+}
+	
+int add(int a, int b)
+{
+	int output;
+	output = a + b;
+	
+return output;
+}
+
+int subt(int c, int d)
+{
+	int output;
+	output = c - d;
+	
+return output;
+}
+
+int mult(int e, int f)
+{
+	int output;
+	output = e * f;
+	
+return output;
+}
+
+float div(float g, float h)
+{
+	float output;
+	output = g / h;
+	
+return output;
+} 
+	
+
+
+	
+