Submission #2756

#	Time	Username	Problem	Language	Result	Execution time	Memory
2756		rbwhddl2000	다각형 (GA5_polygon)	C++98	0 / 100	0 ms	1080 KiB

polygon

#include<stdio.h>
int main()
{
    int a, b;
    long long int c;
    FILE*ifp=freopen("input.txt", "r", stdin);
    FILE*ofp=freopen("output.txt", "w", stdout);
    scanf("%d %d", &a, &b); 
    if(a>=3)a+=a%2;
    else a=4;
    b-=b%2;
    c = (a+b) * (b-a+2) /4;
  	if(c>0) printf("%lld", c);
  	else printf("0");
    return 0;
}

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