测试
2015-07-23 本文已影响0人
b723a487e1a4
测试
****测试****
int main()
{
printf("hello world");
return 0;
}
$\sum_{i = 1}^n \sum_{j = i}^n f(i, j) mod(10^9+7)$
| Tables | Are | Cool |
|---|---|---|
| col 3 is | right-aligned | $1600 |
| col 2 is | centered | $12 |
| zebra stripes | are neat | $1 |
