mat/domace_naloge/2/d=nx.c


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#include <stdio.h>
long long unsigned int d(long long unsigned int n) { return (n*(n-3))/2; }
long long unsigned int x(long long unsigned int n) { return (n/2)-(3/2); }
int main() {
	long long unsigned int n = 3;
	while (n < 420696969) {
		if (d(n) != n*x(n)) {
			fprintf(stdout, "%lld-kotnik! d(n)=%lld, x(n)=%lld, n*x=%lld\n", n, d(n), x(n), n*x(n));
		}
		n = n+2;
	}
}