#include <stdio.h> int arr[5]={1,2,3,4,5}; void displayData(void){ int i; //display initial value for(i=0; i<5;i++){ } } void updateData(void){ int indexnumber, arrayvalue; //set new value arr[indexnumber-1]=arrayvalue; } int main(void) { displayData(); updateData(); displayData(); return 0; }