Submission #2813

#	Time	Username	Problem	Language	Result	Execution time	Memory
2813		mh5664	다각형 (GA5_polygon)	C++98	0 / 100	0 ms	1080 KiB

polygon

#include <stdio.h>

FILE *in = fopen ("input.txt", "r"), *out = fopen ("output.txt", "w");

int main ()
{
	long long int n, m;

	fscanf (in, "%lld %lld", &n, &m);

	long long sol;
  --n;
	if (n % 2 == 1)
		--n;
	if (m % 2 == 1)
		--m;
	sol = ((m / 2) + 1) * m / 2 - ((n / 2) + 1) * n / 2;
	fprintf (out, "%d", sol);
	fclose (in);
	fclose (out);
	return 0;
}

• Subtask 1: 0 / 60
• Subtask 2: 0 / 10
• Subtask 3: 0 / 30