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Submission #2907

# Submission time Handle Problem Language Result Execution time Memory
2907 2013-08-01T13:59:59 Z zyslee 다각형 (GA5_polygon) C++
100 / 100
 0 ms 1088 KB 
#include <stdio.h>
int main()
{
	long long int a, b, ans;
	scanf("%lld %lld", &a, &b);
	if(b<3){
		printf("0");
		return 0;
	}
	if(a<3) a = 3;
	if(a%2==1) a++;
	if(b%2==1) b--;
	if(((b-a)/2+1)%2==0) ans = (a+b)*((b-a)/2+1)/2;
	else ans = a+(a+2+b)*(b-a)/4;
	printf("%lld", ans);
}

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
10.0 / 10.0

# 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 #3
30.0 / 30.0

# 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