#include <stdio.h>
#include <stdlib.h>

typedef struct Item item;
struct Item {
  unsigned int key;
  int value;
};

unsigned int hash(char *x, unsigned int n) {
  const unsigned int offset = 2166136261;
  unsigned int hash = 0;

  for (unsigned int i = 0; i < n; x++, i++) {
    hash *= offset;
    hash ^= (*x);
  }

  return hash;
}

int search(item items[], int n, char *x, int xn) {
  unsigned int key = hash(x, xn);
  for (int i = 0; i < n; i++) {
    if (items[i].key == key)
      return items[i].value;
  }

  printf("Not found");
  exit(1);
}

int main() {
  int const SIZE = 4;
  item items[SIZE];
  items[0].key = hash("nita", 4);
  items[0].value = 99;
  items[1].key = hash("amaang", 5);
  items[1].value = -129;
  items[2].key = hash("unreal", 6);
  items[2].value = 4;
  items[3].key = hash("alpaviraam", 10);
  items[3].value = 10000;

  char x[] = "unreal";

  printf("Value for string %s is: %d", x, search(items, SIZE, x, 6));
}