Write a program that simulate the rolling of two dice. The program should use function rand twice to roll the first die and second die, respectively. the sum of the two values should then be calculated.

[Note: each die can show an integer value from 1 to 6, so the sum will vary from 2 to 12, with 7 being the most frequent sum and 2 and 12 the least frequent sum]
The 36 possible combination of the two dice is as follows:

Your program should roll the dice 36000 times. Use a one-dimensional array to tally the numbers of times each possible sum appears. Print the results in a tabular format. Also, determine if the totals are reasonable, i.e. there are six ways to roll a 7, so approximately one-sixth of all the rolls should be 7.

Solution:

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

int main() {
    int sums[36000];
    int possible[11];
    for (int i=0;i<36000;i++){
        int value1 = rand() % 6 + 1;
        int value2 = rand() % 6 + 1;
        sums[i] = value1 + value2;
    }
    for(int i=0;i<36000;i++) {
        possible[sums[i]-2]++;
    }
    int total = 0;
    for(int i=0;i<11;i++) {
        total += possible[i];
        printf("%d - %d\n", i + 2, possible[i]);
    }
    if (total == 6 * possible[5]) {
        printf("Totals are resonable");
    }
    else {
        printf("Totals are not resonable");
    }

}