leetcode-grind/problems/441/main.c

#include <stdio.h>

int arrangeCoins(int n){
    int count = 0;
    while (n >= count + 1) {
        n -= ++count;
    }
    return count;
}

int main() {
    printf("Expected: 3\n");
    printf("Got: %d\n", arrangeCoins(8));
    return 0;
}