제출 #5892

#제출 시각아이디문제언어결과실행 시간메모리
5892baneling100다각형 (GA5_polygon)C++98
0 / 100
0 ms1088 KiB
#include <stdio.h>

long long A, B, Ans;

int main(void)
{
    scanf("%lld %lld",&A,&B);
    if(B>=4)
    {
        Ans=((B+1)/2)*((B+1)/2+1)-((A-1)/2)*((A-1)/2+1);
        if(A<=2)
            Ans-=2;
    }
    printf("%lld",Ans);
    return 0;
}
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