Code (Not Quite Finished Snap Game)

// A Modified Snap game
// The user will input numbers one at a time
// The program will remember previous input from the user
// If the current input matches previous, the program will say "Snap!"
// Marc Chee 14/3/2019

#include <stdio.h>

#define NUM_TURNS 10

void numberCheck(int guess, int numbers[]);

int main (void) {
    int prevNums[NUM_TURNS] = {0};
    
    printf("Welcome to my game of Snap!\n");
    printf("Please type in a number %d times.\n", NUM_TURNS);
    printf("If I've seen that number before, I will say SNAP!\n");
    
    int counter = 0;
    while (counter < NUM_TURNS) {
        // take user input and store it in the array
        printf("Please type in a number: ");
        int inputNumber;
        scanf("%d", &inputNumber);
        numberCheck(inputNumber, prevNums);
        prevNums[counter] = inputNumber;
        counter++;
    }
    return 0;
}

// loop through an array and print SNAP! if it finds the guess in the array
void numberCheck(int guess, int numbers[]) {
    int counter = 0;
    int exitLoop = 0;
    while(counter < NUM_TURNS && exitLoop == 0) {
        if (guess == numbers[counter]) {
            printf("SNAP!\n");
            printf("I found %d at %d\n", guess, counter);
            exitLoop = 1;
        }
        counter++;
    }
    return;
}