#import<iostream>
long long a,b,x;main(){std::cin>>a>>b;a++,a/=2,a--,b/=2;x=b*(b+1)-a*(a+1);if(a==0&&x)x-=2;std::cout<<x;}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
1672 KB |
Output is correct |
2 |
Correct |
0 ms |
1672 KB |
Output is correct |
3 |
Correct |
0 ms |
1672 KB |
Output is correct |
4 |
Correct |
0 ms |
1672 KB |
Output is correct |
5 |
Correct |
0 ms |
1672 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
1672 KB |
Output is correct |
2 |
Correct |
0 ms |
1672 KB |
Output is correct |
3 |
Correct |
0 ms |
1672 KB |
Output is correct |
4 |
Correct |
0 ms |
1672 KB |
Output is correct |
5 |
Correct |
0 ms |
1672 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
1672 KB |
Output is correct |
2 |
Correct |
0 ms |
1672 KB |
Output is correct |
3 |
Correct |
0 ms |
1672 KB |
Output is correct |
4 |
Correct |
0 ms |
1672 KB |
Output is correct |
5 |
Correct |
0 ms |
1672 KB |
Output is correct |