Submission #2831

#	Time	Username	Problem	Language	Result	Execution time	Memory
2831		ansol1111	다각형 (GA5_polygon)	C++98	60 / 100	0 ms	1088 KiB

polygon

#include<stdio.h>

int a, b, sum, cnt;

int main()
{
    scanf("%d %d",&a,&b);

    if(b<=3)
    {
        printf("\n");
        printf("0");
    }
    else
    {
        if(a<=3)
        {
            a=4;
        }
        if(a%2!=0)
        {
            a+=1;
        }
        if(b%2!=0)
        {
            b-=1;
        }
        cnt=(b/2)-(a/2)+1;
        if(cnt%2==0)
        {
            sum=(a+b)*(cnt/2);
        }
        else if(cnt%2!=0)
        {
            sum=((a+b)*(cnt/2))+a+((cnt/2)*2);
        }
        printf("\n");
        printf("%d",sum);
    }
    return 0;
}

• Subtask 1: 60 / 60
• Subtask 2: 0 / 10
• Subtask 3: 0 / 30