From b6b9faddc8cda3f1dfb2cd1f3d548328660eb445 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=BC=A0=E6=B5=A9=E6=96=8C?= <newsclan@gmail.com>
Date: Wed, 4 Oct 2023 10:26:45 +0800
Subject: [PATCH] Update problemset.php

---
 trunk/web/problemset.php | 191 ++++++++++++++++++++-------------------
 1 file changed, 97 insertions(+), 94 deletions(-)

diff --git a/trunk/web/problemset.php b/trunk/web/problemset.php
index 9b54829859e..8717c050261 100644
--- a/trunk/web/problemset.php
+++ b/trunk/web/problemset.php
@@ -1,6 +1,6 @@
-<?php
+<?php 
 $OJ_CACHE_SHARE = false;
-$cache_time = 0;
+$cache_time = 10;
 
 require_once('./include/db_info.inc.php');
 require_once('./include/const.inc.php');
@@ -14,26 +14,26 @@
 //remember page
 $page = "1";
 if (isset($_GET['page'])) {
-        $page = intval($_GET['page']);
+	$page = intval($_GET['page']);
 
-        if (isset($_SESSION[$OJ_NAME.'_'.'user_id'])) {
-                $sql = "update users set volume=? where user_id=?";
-                pdo_query($sql,$page,$_SESSION[$OJ_NAME.'_'.'user_id']);
-        }
+	if (isset($_SESSION[$OJ_NAME.'_'.'user_id'])) {
+		$sql = "update users set volume=? where user_id=?";
+		pdo_query($sql,$page,$_SESSION[$OJ_NAME.'_'.'user_id']);
+	}
 
 }
 else {
-        if (isset($_SESSION[$OJ_NAME.'_'.'user_id'])&&!isset($_GET['search'])) {
-                $sql = "select volume from users where user_id=?";
-                $result = pdo_query($sql,$_SESSION[$OJ_NAME.'_'.'user_id']);
-                $row = $result[0];
-                $page = intval($row[0]);
-        }else{
-                $page = 1;
-        }
-
-        if (!is_numeric($page) || $page<=0)
-                $page = '1';
+	if (isset($_SESSION[$OJ_NAME.'_'.'user_id'])&&!isset($_GET['search'])) {
+		$sql = "select volume from users where user_id=?";
+		$result = pdo_query($sql,$_SESSION[$OJ_NAME.'_'.'user_id']);
+		$row = $result[0];
+		$page = intval($row[0]);
+	}else{
+		$page = 1;
+	}
+
+	if (!is_numeric($page) || $page<=0)
+		$page = '1';
 }
 //end of remember page
 
@@ -45,40 +45,43 @@
 $postfix="";
 $filter_sql = "";
 $limit_sql = "";
+$order_by=" order by problem_id ";
 if (isset($_GET['search']) && trim($_GET['search'])!="") {
-        $search = "%".($_GET['search'])."%";
-        $filter_sql = " ( title like ? or source like ?)";
-        $limit_sql = " LIMIT ".($page-1)*$page_cnt.",".$page_cnt;
-        $postfix="&search=".urlencode($_GET['search']);
+	$search = "%".($_GET['search'])."%";
+	$filter_sql = " ( title like ? or source like ?)";
+	$limit_sql = " LIMIT ".($page-1)*$page_cnt.",".$page_cnt;	
+ 	$postfix="&search=".urlencode($_GET['search']);
 }else if (isset($_GET['list']) && trim($_GET['list']!="")){
         $plist= explode(",",$_GET['list']);
-        $pids="0";
-        foreach($plist as $pid){
-          $pid=intval($pid);
-          $pids.=",$pid";
-        }
-        $filter_sql = " problem_id in ($pids) order by FIELD(problem_id,$pids)"; // 如果希望按难度顺序改成 order by accepted desc ;
-        $limit_sql="";  // list 不翻页
+	$pids="0";
+	foreach($plist as $pid){
+	  $pid=intval($pid);
+     	  $pids.=",$pid";
+	}
+	$filter_sql = " problem_id in ($pids) ";
+	$order_by = "order by FIELD(problem_id,$pids)"; // 如果希望按难度顺序改成 order by accepted desc ;
+	//$limit_sql = " LIMIT ".($page-1)*$page_cnt.",".$page_cnt;
+	$limit_sql="";  // list 不翻页
 }else if(isset($_GET['my'])){
-        $filter_sql = " 1";
-        $limit_sql = " LIMIT ".($page-1)*$page_cnt.",".$page_cnt;
+	$filter_sql = " 1";
+	$limit_sql = " LIMIT ".($page-1)*$page_cnt.",".$page_cnt;
 }
 else {
-        $filter_sql = " 1";
-        $limit_sql = " LIMIT ".($page-1)*$page_cnt.",".$page_cnt;
+	$filter_sql = " 1";
+	$limit_sql = " LIMIT ".($page-1)*$page_cnt.",".$page_cnt;
 }
 
 //all submit
 //all acc
-$sub_arr = Array();
-$acc_arr = Array();
+$sub_arr = Array(); 
+$acc_arr = Array(); 
 if (isset($_SESSION[$OJ_NAME.'_'.'user_id'])){
-        $sql = "SELECT problem_id, MIN(result) AS min_result FROM solution WHERE user_id=? GROUP BY problem_id ";
-        $result = pdo_query($sql,$_SESSION[$OJ_NAME.'_'.'user_id']);
-        foreach ($result as $row){
-                $sub_arr[$row['problem_id']] = true;
-                if($row['result'] == 4) $acc_arr[$row['problem_id']] = true;
-        }
+	$sql = "SELECT problem_id, MIN(result) AS min_result FROM solution WHERE user_id=? GROUP BY problem_id ";
+	$result = pdo_query($sql,$_SESSION[$OJ_NAME.'_'.'user_id']);
+	foreach ($result as $row){
+		$sub_arr[$row['problem_id']] = true;
+		if($row['result'] == 4) $acc_arr[$row['problem_id']] = true;		
+	}		
 }
 
 // Problem Page Navigator
@@ -87,33 +90,33 @@
 
 if (isset($_SESSION[$OJ_NAME.'_'.'administrator'])) {  //all problems
     $limit = $limit_sql;
-}else if ($OJ_FREE_PRACTICE){  // open free practice without limit of contest using
+}else if ($OJ_FREE_PRACTICE){  // open free practice without limit of contest using	
     $filter_sql .= " and defunct='N' ";
 }else {  //page problems (not include in contests period)
-        $now = strftime("%Y-%m-%d %H:%M",time());
-        $filter_sql.=" and `defunct`='N' AND `problem_id` NOT IN (
-                                        SELECT  `problem_id`
-                                                FROM contest c
-                                                INNER JOIN  `contest_problem` cp ON c.`contest_id` = cp.`contest_id` ".
-                                                        " AND (c.`defunct` = 'N' AND '$now'<c.`end_time`)" .    // option style show all non-running contest
-                                                //"and (c.`end_time` >  '$now'  OR c.private =1)" . // original style , hidden all private contest problems
-                                 ") ORDER BY `problem_id`
-        ";
+	$now = strftime("%Y-%m-%d %H:%M",time());
+	$filter_sql.=" and `defunct`='N' AND `problem_id` NOT IN (
+					SELECT  `problem_id`
+						FROM contest c
+						INNER JOIN  `contest_problem` cp ON c.`contest_id` = cp.`contest_id` ".
+				 			" AND (c.`defunct` = 'N' AND '$now'<c.`end_time`)" .    // option style show all non-running contest
+						//"and (c.`end_time` >  '$now'  OR c.private =1)" . // original style , hidden all private contest problems
+				 ") ORDER BY `problem_id` 
+	";
 }
 // End Page Setting
-pdo_query("SET sort_buffer_size = 1024*1024");   // Out of sort memory, consider increasing server sort buffer size
-//echo htmlentities( $sql);
-    $sql = "SELECT * FROM (SELECT @ROWNUM := @ROWNUM + 1 AS ROWNUM, `problem_id`,`title`,`source`,`submit`,`accepted`,defunct FROM (select * from `problem` order by problem_id) problem, (SELECT @ROWNUM := 0) TEMP ORDER BY `problem_id`) A WHERE $filter_sql $limit_sql ";
+    pdo_query("SET sort_buffer_size = 1024*1024");   // Out of sort memory, consider increasing server sort buffer size
+    $sql = "SELECT `problem_id`,`title`,`source`,`submit`,`accepted`,defunct FROM problem A WHERE $filter_sql $order_by $limit_sql ";
     $count_sql= "SELECT count(1) from problem where  $filter_sql ";
+    //echo htmlentities( $sql);
 if (isset($_GET['search']) && trim($_GET['search'])!="") {
-        $total = pdo_query($count_sql,$search,$search);
-        $cnt = $total[0][0] / $page_cnt;
-        $result = pdo_query($sql,$search,$search);
+	$total = pdo_query($count_sql,$search,$search);
+	$cnt = $total[0][0] / $page_cnt;
+	$result = pdo_query($sql,$search,$search);
 }
 else {
-        $total = mysql_query_cache($count_sql);
-        $cnt = $total[0][0] / $page_cnt;
-        $result = mysql_query_cache($sql);
+	$total = mysql_query_cache($count_sql);	
+	$cnt = $total[0][0] / $page_cnt;
+	$result = mysql_query_cache($sql);
 }
 echo "";
 
@@ -123,54 +126,54 @@
 $view_problemset = Array();
 $i = 0;
 foreach ($result as $row) {
-        $view_problemset[$i] = Array();
-
-        if (isset($sub_arr[$row['problem_id']])) {
-                if (isset($acc_arr[$row['problem_id']]))
-                        $view_problemset[$i][0] = "<div class='label label-success'>Y</div>";
-                else
-                        $view_problemset[$i][0] = "<div class='label label-danger'>N</div>";
-        }
-        else {
-                $view_problemset[$i][0] = "<div class=none> </div>";
-        }
-
-        $category = array();
-        $cate = explode(" ",$row['source']);
-        foreach($cate as $cat){
+	$view_problemset[$i] = Array();
+
+	if (isset($sub_arr[$row['problem_id']])) {
+		if (isset($acc_arr[$row['problem_id']])) 
+			$view_problemset[$i][0] = "<div class='label label-success'>Y</div>";
+		else
+			$view_problemset[$i][0] = "<div class='label label-danger'>N</div>";
+	}
+	else {
+		$view_problemset[$i][0] = "<div class=none> </div>";
+	}
+
+	$category = array();
+	$cate = explode(" ",$row['source']);
+	foreach($cate as $cat){
                         $cat=trim($cat);
                         if(mb_ereg("^http",$cat)){
                                 $cat=get_domain($cat);
                         }
                         array_push($category,trim($cat));
         }
-        $view_problemset[$i][1] = "<div fd='problem_id' class='center'>".$row['problem_id']."</div>";
-        $view_problemset[$i][2] = "<div class='left'><a href='problem.php?id=".$row['problem_id']."'>".$row['title']."</a></div>";;
-        $view_problemset[$i][3] = "<div pid='".$row['problem_id']."' fd='source' class='center'>";
+	$view_problemset[$i][1] = "<div fd='problem_id' class='center'>".$row['problem_id']."</div>";
+	$view_problemset[$i][2] = "<div class='left'><a href='problem.php?id=".$row['problem_id']."'>".$row['title']."</a></div>";;
+	$view_problemset[$i][3] = "<div pid='".$row['problem_id']."' fd='source' class='center'>";
 
-        foreach ($category as $cat) {
-                if(trim($cat)==""||trim($cat)=="&nbsp")
-                        continue;
+	foreach ($category as $cat) {
+		if(trim($cat)==""||trim($cat)=="&nbsp")
+			continue;
 
-                $hash_num = hexdec(substr(md5($cat),0,7));
-                $label_theme = $color_theme[$hash_num%count($color_theme)];
+		$hash_num = hexdec(substr(md5($cat),0,7));
+		$label_theme = $color_theme[$hash_num%count($color_theme)];
 
-                if ($label_theme=="")
-                        $label_theme = "default";
+		if ($label_theme=="")
+			$label_theme = "default";
 
-                $view_problemset[$i][3] .= "<a title='".htmlentities($cat,ENT_QUOTES,'UTF-8')."' class='label label-$label_theme' style='display: inline-block;' href='problemset.php?search=".htmlentities(urlencode($cat),ENT_QUOTES,'UTF-8')."'>".mb_substr($cat,0,10,'utf8')."</a>&nbsp;";
-        }
+		$view_problemset[$i][3] .= "<a title='".htmlentities($cat,ENT_QUOTES,'UTF-8')."' class='label label-$label_theme' style='display: inline-block;' href='problemset.php?search=".htmlentities(urlencode($cat),ENT_QUOTES,'UTF-8')."'>".mb_substr($cat,0,10,'utf8')."</a>&nbsp;";
+	}
 
-        $view_problemset[$i][3] .= "</div >";
-        $view_problemset[$i][4] = "<div class='center'><a href='status.php?problem_id=".$row['problem_id']."&jresult=4'>".$row['accepted']."</a></div>";
-        $view_problemset[$i][5] = "<div class='center'><a href='status.php?problem_id=".$row['problem_id']."'>".$row['submit']."</a></div>";
-        $i++;
+	$view_problemset[$i][3] .= "</div >";
+	$view_problemset[$i][4] = "<div class='center'><a href='status.php?problem_id=".$row['problem_id']."&jresult=4'>".$row['accepted']."</a></div>";
+	$view_problemset[$i][5] = "<div class='center'><a href='status.php?problem_id=".$row['problem_id']."'>".$row['submit']."</a></div>";
+	$i++;
 }
 if(isset($_GET['ajax'])){
-        require("template/bs3/problemset.php");
+	require("template/bs3/problemset.php");
 }else{
-        require("template/".$OJ_TEMPLATE."/problemset.php");
+	require("template/".$OJ_TEMPLATE."/problemset.php");
 }
 if(file_exists('./include/cache_end.php'))
-        require_once('./include/cache_end.php');
+	require_once('./include/cache_end.php');
 ?>