2024-10-10
This commit is contained in:
174
web/problem.php
Normal file
174
web/problem.php
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<?php
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$cache_time = 10;
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$OJ_CACHE_SHARE = false;
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require_once('./include/cache_start.php');
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require_once('./include/db_info.inc.php');
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require_once('./include/bbcode.php' );
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require_once('./include/const.inc.php');
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require_once('./include/my_func.inc.php');
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require_once('./include/setlang.php');
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if(isset($OJ_LANG)){
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require_once("./lang/$OJ_LANG.php");
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}
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$now = date("Y-m-d H:i",time());
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if (isset($_GET['cid']))
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$ucid = "&cid=".intval($_GET['cid']);
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else
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$ucid = "";
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$pr_flag = false;
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$co_flag = false;
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if (isset($_GET['id'])) {
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//practice
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$id = intval($_GET['id']);
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//require("oj-header.php");
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$sql="select c.contest_id,c.title from contest c inner join contest_problem cp on c.contest_id=cp.contest_id and cp.problem_id=? WHERE ( c.`end_time`>'$now' and c.defunct='N' ) or c.`private`='1' ";
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$used_in_contests=pdo_query($sql,$id);
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if (isset($_SESSION[$OJ_NAME.'_'.'administrator'])|| isset($_SESSION[$OJ_NAME.'_'.'problem_verifiter']) || isset($_SESSION[$OJ_NAME.'_'.'contest_creator']) || isset($_SESSION[$OJ_NAME.'_'.'problem_editor']))
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$sql = "SELECT * FROM `problem` WHERE `problem_id`=?";
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else if ($OJ_FREE_PRACTICE)
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$sql = "SELECT * FROM `problem` WHERE defunct='N' and `problem_id`=?";
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else
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$sql = "SELECT * FROM `problem` WHERE `problem_id`=? AND `defunct`='N' AND `problem_id` NOT IN (
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SELECT `problem_id` FROM `contest_problem` WHERE `contest_id` IN (
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SELECT `contest_id` FROM `contest` WHERE ( `end_time`>'$now' and defunct='N' ) or `private`='1'
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)
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)"; ////////// people should not see the problem used in contest before they end by modifying url in browser address bar
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///////// if you give students opportunities to test their result out side the contest ,they can bypass the penalty time of 20 mins for
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///////// each non-AC sumbission in contest. if you give them opportunities to view problems before exam ,they will ask classmates to write
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///////// code for them in advance, if you want to share private contest problem to practice you should modify the contest into public
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$pr_flag = true;
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$result = pdo_query($sql,$id);
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}
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else if (isset($_GET['cid']) && isset($_GET['pid'])) {
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//contest
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$cid = intval($_GET['cid']);
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$pid = intval($_GET['pid']);
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require_once("contest-check.php");
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if (isset($_SESSION[$OJ_NAME.'_'.'administrator']) || isset($_SESSION[$OJ_NAME.'_'.'contest_creator']) || isset($_SESSION[$OJ_NAME.'_'.'problem_editor']))
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$sql = "SELECT langmask,private,defunct FROM `contest` WHERE `contest_id`=?";
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else
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$sql = "SELECT langmask,private,defunct FROM `contest` WHERE `defunct`='N' AND `contest_id`=? AND (`start_time`<='$now' AND ('$now'<`end_time` or private='N') )";
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$result = pdo_query($sql,$cid);
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$rows_cnt =empty($result)?0:count($result);
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if (empty($result) && !$OJ_FREE_PRACTICE && !isset($_SESSION[$OJ_NAME.'_administrator']) && !isset($_SESSION[$OJ_NAME."_c".$cid]) ) {
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$view_errors = "<title>$MSG_CONTEST</title><h2>No such Contest!</h2>";
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require("template/".$OJ_TEMPLATE."/error.php");
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exit(0);
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}
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$row = ($result[0]);
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$contest_ok = true;
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if ($row[1] && !isset($_SESSION[$OJ_NAME.'_'.'c'.$cid]))
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$contest_ok = false;
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if ($row[2]=='Y')
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$contest_ok = false;
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if (isset($_SESSION[$OJ_NAME.'_'.'administrator']) || isset($_SESSION[$OJ_NAME.'_'.'contest_creator']) || isset($_SESSION[$OJ_NAME.'_'.'problem_editor']))
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$contest_ok = true;
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$ok_cnt = $rows_cnt==1;
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$langmask = $row[0];
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if ( !$contest_ok ) {
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//not started
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$view_errors = "No such Contest!";
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require("template/".$OJ_TEMPLATE."/error.php");
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exit(0);
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}
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else {
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//started
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// $sql = "SELECT * FROM `problem` WHERE `defunct`='N' AND `problem_id`=( // <- defunct problem not in list
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// $sql = "SELECT * FROM `problem` WHERE `problem_id`=( // <-- defunct problem in list for contest but, not in list for practice
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$sql = "SELECT * FROM `problem` WHERE `problem_id`=(
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SELECT `problem_id` FROM `contest_problem` WHERE `contest_id`=? AND `num`=?
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)";
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$result = pdo_query($sql,$cid,$pid);
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$id = $result[0]['problem_id'];
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}
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//public
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if (!$contest_ok) {
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$view_errors = "Not Invited!";
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require("template/".$OJ_TEMPLATE."/error.php");
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exit(0);
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}
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$co_flag = true;
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}
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else {
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$view_errors="<title>$MSG_NO_SUCH_PROBLEM</title><h2>$MSG_NO_SUCH_PROBLEM</h2>";
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require("template/".$OJ_TEMPLATE."/error.php");
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exit(0);
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}
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if (count($result)!=1) {
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$view_errors = "";
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if (isset($_GET['id'])) {
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$id = intval($_GET['id']);
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if(count($used_in_contests)>0){
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if (!(isset($OJ_EXAM_CONTEST_ID)||isset($OJ_ON_SITE_CONTEST_ID))) {
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$view_errors.= "<hr><br>$MSG_PROBLEM_USED_IN:";
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foreach($used_in_contests as $contests){
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$view_errors.= "<a class='label label-warning' href='contest.php?cid=". $contests[0]."'>".$contests[1]." </a><br>";
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}
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//echo "</div>";
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}
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}
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else {
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$view_title = "<title>$MSG_NO_SUCH_PROBLEM!</title>";
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$view_errors .= "<h2>$MSG_NO_SUCH_PROBLEM!</h2>";
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}
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}
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else {
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$view_title = "<title>$MSG_NO_SUCH_PROBLEM!</title>";
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$view_errors .= "<h2>$MSG_NO_SUCH_PROBLEM!</h2>";
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}
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if(!(isset($_SESSION[$OJ_NAME.'_administrator'])||isset($_SESSION[$OJ_NAME.'_problem_editor']))){
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require("template/".$OJ_TEMPLATE."/error.php");
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exit(0);
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}
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}
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else {
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$row = $result[0];
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$view_title = $row['title'];
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}
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if( isset($OJ_NOIP_KEYWORD) && $OJ_NOIP_KEYWORD ){
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//检查当前题目是不是在NOIP模式比赛中，如果是则不显示AC数量 2020.7.11 by ivan_zhou
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//$now = date('Y-m-d H:i', time());
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$sql = "select 1 from `contest_problem` where (`problem_id`= ? ) and `contest_id` IN (select `contest_id` from `contest` where `start_time` < ? and `end_time` > ? and `title` like ?)";
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$rrs = pdo_query($sql, $id ,$now , $now , "%$OJ_NOIP_KEYWORD%");
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$flag = !empty($rrs) ;
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if($flag){
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$row[ 'accepted' ] = '<font color="red"> ? </font>';
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// 使用$OJ_NOIP_TISHI 条件语句确定是否显示提示信息
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if (isset($OJ_NOIP_HINT) && $OJ_NOIP_HINT) {
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//$row['hint'] = $MSG_NOIP_NOHINT;
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} else {
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$row['hint'] = $MSG_NOIP_NOHINT;
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}
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}
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}
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/////////////////////////Template
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require("template/".$OJ_TEMPLATE."/problem.php");
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/////////////////////////Common foot
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if(file_exists('./include/cache_end.php'))
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require_once('./include/cache_end.php');
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?>
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