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Submission #2863

# Submission time Handle Problem Language Result Execution time Memory
2863 2013-08-01T03:38:16 Z ladown21 다각형 (GA5_polygon) C++
60 / 100
 0 ms 1088 KB 
#include <stdio.h>

int main()
{
	int a, b;
	scanf("%d%d",&a,&b);
	a--;
	if (a<3) a=3;
	if (b<a) b=a;
	if (a&1) a--;
	if (b&1) b--;

	a/=2, b/=2;
	printf("%d\n",((b*(b+1)/2)-(a*(a+1)/2))*2);
}

Subtask #1
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 1088 KB Output is correct
2 Correct 0 ms 1088 KB Output is correct
3 Correct 0 ms 1088 KB Output is correct
4 Correct 0 ms 1088 KB Output is correct
5 Correct 0 ms 1088 KB Output is correct

Subtask #2
0.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 1088 KB Output is correct
2 Incorrect 0 ms 1088 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0.0 / 30.0

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