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답안 #14822

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
14822 2015-06-28T07:29:26 Z eaststar 다각형 (GA5_polygon) C++
100 / 100
 0 ms 1084 KB 
#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
60.0 / 60.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 1084 KB Output is correct
2 Correct 0 ms 1084 KB Output is correct
3 Correct 0 ms 1084 KB Output is correct
4 Correct 0 ms 1084 KB Output is correct
5 Correct 0 ms 1084 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 1084 KB Output is correct
2 Correct 0 ms 1084 KB Output is correct
3 Correct 0 ms 1084 KB Output is correct
4 Correct 0 ms 1084 KB Output is correct
5 Correct 0 ms 1084 KB Output is correct

Subtask #3
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 1084 KB Output is correct
2 Correct 0 ms 1084 KB Output is correct
3 Correct 0 ms 1084 KB Output is correct
4 Correct 0 ms 1084 KB Output is correct
5 Correct 0 ms 1084 KB Output is correct