#include <stdio.h> /* Function prototypes */ int add(int a, int b) { return a + b; } int subtract(int a, int b) { return a - b; } int multiply(int a, int b) { return a * b; } int divide(int a, int b) { if (b == 0) { printf("Error: Division by zero!n"); return 0; } return a / b; } int main() { char op; int x, y; /* Array of function pointers */ int (*funcPtr[4])(int, int) = {add, subtract, multiply, divide}; char operators[4] = {'+', '-', '*', '/'}; printf("Enter two numbers: "); scanf("%d %d", &x, &y); printf("Enter operator (+, -, *, /): "); scanf(" %c", &op); int i, found = 0; for (i = 0; i < 4; i++) { if (op == operators[i]) { int result = funcPtr[i](x, y); // Call corresponding function printf("Result: %d %c %d = %dn", x, op, y, result); found = 1; break; } } if (!found) { printf("Error: Invalid operator!n"); } return 0; }