Submission #7799

#	Time	Username	Problem	Language	Result	Execution time	Memory
7799		whiteout	다각형 (GA5_polygon)	C++98	100 / 100	0 ms	1672 KiB

polygon

#import<iostream>
long long a,b,x;main(){std::cin>>a>>b;a++,a/=2,a--,b/=2;x=b*(b+1)-a*(a+1);if(a==0&&x)x-=2;std::cout<<x;}

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