Submission #14822

#	Time	Username	Problem	Language	Result	Execution time	Memory
14822		eaststar	다각형 (GA5_polygon)	C++98	100 / 100	0 ms	1084 KiB

polygon

#include <stdio.h>
int main(){
    long long a,b,s=0;
    scanf("%lld%lld",&a,&b);
    if(a<=2&&2<=b)s-=2;
    a=(a+1)/2,b/=2;
    s+=b*(b+1)-a*(a-1);
    printf("%lld",s);
    return 0;
}

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