nginx add_header not working
See this conf first:location /i/ {
add_header X-Frame-Options "SAMEORIGIN" always;
if ($uri ~ "^/i/([0-9a-zA-Z]*)([/]{0,1})$") {
set $id $1;
add_header Set-Cookie "...
chrome headless by puppeteer: No dialog is showing
I wrote these code and run on chrome headless mode.page.on('dialog', async dialog => {
console.log('Dialog: ', dialog.type()); // 'confirm'
await delay(2000...
趣题 摆书 USACO 2012 Bookshelf
http://www.usaco.org/index.php?page=viewproblem2&cpid=138首先第一反应是可以做n2的dp，但是总有种预感是会有更优化的解法，想了想优化dp的迭代过程又没有结果。这时我有种感觉是这题可以用队列做，找单调性。好的答案来了设dp[i]是放完前i本书以后 书架的最小高度，显然dp单调递增。程序从第一本书开始，一本一本的往书架里填塞：我们用一个双...