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Submission #2813

# Submission time Handle Problem Language Result Execution time Memory
2813 2013-07-31T13:05:02 Z mh5664 다각형 (GA5_polygon) C++
0 / 100
 0 ms 1080 KB 
#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
0.0 / 60.0

# Verdict Execution time Memory Grader output
1 Runtime error 0 ms 1080 KB open (syscall #2) was called by the program (disallowed syscall)
2 Halted 0 ms 0 KB -

Subtask #2
0.0 / 10.0

# Verdict Execution time Memory Grader output
1 Halted 0 ms 0 KB -

Subtask #3
0.0 / 30.0

# Verdict Execution time Memory Grader output
1 Halted 0 ms 0 KB -