function problem_display($row)
{
global $cache;
$cache_id = problem_cache_id($row['contest_id'], $row['prob_id']) . '.htm';
if ($data = $cache->get($cache_id)) {
echo $data;
} else {
$prob =& problem_load($row);
$data = "<script type=\"text/javascript\">var problemVersion = {$row['version']};</script>";
// Display heading
$data .= '<div id="problem_title">';
$data .= 'Problem: <b>' . $row['prob_id'] . '</b>';
$data .= '</div>';
$data .= '<div id="problem">';
$data .= '<div id="problem_header">';
$data .= '<b>Summary:</b> ' . $row['summary'];
$data .= '<br /><b>Weight:</b> ' . $row['weight'];
$data .= '<br /><b>Time limit:</b> ' . $row['time_limit'] . ' second(s)';
$data .= '<br /><b>Memory limit:</b> ' . $row['mem_limit'] . ' MB';
$data .= '<br /><b>Test cases:</b> ' . count($prob->tests);
$data .= '</div>';
// Display problem description (body)
$data .= "<div id=\"problem_body\">\n";
$data .= "<b>Description:</b><br /><div id=\"problem_body_text\">\n";
$data .= $prob->body;
$data .= "</div></div>\n";
// Display the formatting constraints
$data .= "<div id=\"problem_constraints\">\n";
$data .= "<b>Formatting/Constraints:</b>\n";
$data .= "<ul>\n";
foreach ($prob->constraints as $type => $points) {
$data .= '<li><i>' . ucfirst(strtolower($type)) . ":</i>\n<ol>\n";
foreach ($points as $point) {
$data .= "<li>{$point}</li>\n";
}
$data .= "</ol>\n</li>\n";
}
$data .= "</ul>\n</div>\n";
// Display the examples
$data .= '<div id="problem_examples">';
$data .= "<b>Examples:</b>\n";
$data .= "<ol>\n";
foreach ($prob->examples as $id => $text) {
$data .= "<li>\n";
$data .= "<b>Input:</b> <pre>";
$data .= html_strip($prob->tests[$id]->getInput());
$data .= "</pre>\n";
$data .= "<b>Output:</b> <pre>";
$data .= html_strip($prob->tests[$id]->getOutput());
$data .= "</pre>\n";
$data .= "<b>Analysis:</b> <div class=\"analysis\">\n";
$data .= $text;
$data .= "</div>\n";
$data .= "</li>\n";
}
if (count($prob->examples) == 0) {
$data .= "None.\n";
}
$data .= "</ol></div>\n";
$data .= "</div>\n";
$cache->save($data, $cache_id);
echo $data;
}
}
function test_cases(&$problem, &$solution, $tests = null, $verbose = true)
{
global $cfg;
$buf = '';
$passed = '';
// Get valid extensions for language
$lang = $solution['language'];
require_once $cfg['dir']['languages'] . '/' . $solution['language'] . '.php';
$extn_func = 'lang_' . $lang . '_extensions';
$extns = $extn_func();
$temp_dir = tempnam('/tmp', 'ogs');
unlink($temp_dir);
mkdir($temp_dir);
$source_file = $temp_dir . '/test.' . $extns[0];
$exec_file = tempnam($temp_dir, 'ogs');
// Load problem
$prob = problem_load($problem);
// Make the source code file
$handle = fopen($source_file, 'w');
$header_func = 'lang_' . $lang . '_header';
fwrite($handle, $header_func());
fwrite($handle, "\n");
fwrite($handle, $solution['source']);
fclose($handle);
// Compile in appropriate language
dump("<pre class=\"testing\">");
dump("Compiling [language={$lang}]...\n");
$compile_func = 'lang_' . $lang . '_compile';
if (!$compile_func($source_file, $exec_file)) {
// Error in compilation, error in $exec_file
$error = file_get_contents($exec_file);
dump("</pre>\n<pre class=\"test_error\">");
dump("<b>Compilation Error:</b>\n<br />{$error}");
dump("</pre>\n");
} else {
dump("Verifying binary...<b>OK</b>");
dump("</pre>\n");
dump("<pre class=\"testing\">");
$count = 0;
// test case counter
$correct = 0;
// correct test cases
// Check for test case filter
$custom = false;
if ($tests == null) {
$tests_to_do =& $prob->tests;
} else {
if (is_array($tests)) {
$tests_to_do = array();
/*
foreach ($tests as $id) {
array_push($tests_to_do, $prob->tests[$id]);
}*/
/*The following code pushes all tests into $tests, modified for TCL*/
/* Does not modify the calling function, just makes the params obsolete */
$tests2 = array_keys($prob->tests);
foreach ($tests2 as $id) {
array_push($tests_to_do, $prob->tests[$id]);
}
} else {
//Custom testing
$custom = true;
$tests_to_do = array(new TestCase(1, null, null));
$tests_to_do[0]->input = $tests;
$tests_to_do[0]->output = '';
}
}
foreach ($tests_to_do as $test_case) {
dump("Test case {$count}: ");
// Determine limits
$time_limit = $problem['time_limit'];
$mem_limit = $problem['mem_limit'];
if ($test_case->time_limit != null) {
$time_limit = $test_case->time_limit;
}
if ($test_case->mem_limit != null) {
$mem_limit = $test_case->mem_limit;
}
// Special case for Java
if ($lang == 'java') {
$mem_limit += $cfg['tester']['java_mem_overhead'];
}
// Execute and get output in $output
$output =& $test_case->getOutput();
$test_input =& $test_case->getInput();
$ret = system_gauge($exec_file, $test_input, $output, $time_limit, $mem_limit, $exec_time);
if ($custom == true && $ret != 1) {
dump("<b>done</b>\n");
dump("</pre>\n<pre class=\"test_success\">");
dump("<b>Execution time:</b> {$exec_time} seconds\n");
dump("<b>Program output:</b>\n");
// Print output returned
dump($output);
dump("(Please verify correctness of output yourself)\n");
} else {
if ($ret == 0) {
dump("<b>OK</b> ({$exec_time} seconds)\n");
++$correct;
$passed .= '1';
} else {
if ($ret == 1) {
// Execution failed, error msg in $output
dump("<b>failed </b>");
dump("\t(Reason: {$output})\n");
$passed .= '0';
} else {
if ($ret == 2) {
dump("<b>failed</b>");
/*Remove the comments if you wish to show which cases failed*/
/*
if (!$verbose) {
dump("\t(Reason: Output Incorrect)\n");
} else {
dump("\t(Reason: Output incorrect, shown BELOW)\n");
dump("-------------- Input used --------------\n");
dump($test_input);
dump("\n-------------- Your output --------------\n");
dump($output);
if ($output{strlen($output)-1} != "\n") {
dump("\n");
}
dump("-------------- Expected output --------------\n");
$output =& $test_case->getOutput();
dump($output);
if ($output{strlen($output)-1} != "\n")
dump("\n");
dump("\n");
}*/
/* And comment the following line */
dump("\t(Reason: Output Incorrect)\n");
$passed .= '0';
}
}
}
}
++$count;
}
dump("</pre>\n");
if ($custom == false) {
if ($correct == $count) {
$status = 'test_success';
} else {
if ($correct > 0) {
$status = 'test_warning';
} else {
$status = 'test_error';
}
}
dump("<pre class=\"{$status}\">");
dump("<b>Total cases passed: {$correct}/{$count}</b>");
dump("</pre>\n");
}
}
// Remove temprary files
@unlink($source_file);
@unlink($exec_file);
@rmdir($temp_dir);
if ($count == 0) {
return 0;
}
if ($correct == $count) {
return array(1, $passed);
} else {
return array($correct * 1.0 / $count, $passed);
}
}
require_once $cfg['dir']['languages'] . '/' . $soln['language'] . '.php';
$func = 'lang_' . $soln['language'] . '_description';
echo '<b>Language:</b> ' . $func();
echo '<pre class="solution_code">';
echo html_escape($soln['source']);
echo '</pre>';
ob_end_flush();
if ($contest['end_future'] != '1' && ($contest['tested'] == 1 || auth_user_in_group('Administrators'))) {
// Show test-case passing summary
require_once 'problem.php';
require_once 'HTML/Table.php';
$table = new HTML_Table();
$table->addRow(array('Test Case', 'Passed', 'Input'), null, 'TH');
$res =& db_query('problem_by_id', array($_GET['prob_id'], $_GET['id']));
$res->fetchInto($problem);
$prob = problem_load($problem);
$show_eg = strlen($soln['passed']) == count($prob->tests);
$i = '0';
foreach ($prob->tests as $id => $case) {
if (!$show_eg && array_key_exists($id, $prob->examples)) {
continue;
}
$passed = "no";
if ($soln['passed'][$i] == '1') {
$passed = "yes";
}
$table->addRow(array($i, $passed, '<pre>' . $case->getInput() . '</pre>'));
++$i;
}
$table->altRowAttributes(1, null, array("class" => "altrow"));
echo '<div class="overflow">' . $table->toHtml() . '</div>';
function submit_perform($contest_id, $team_id, &$problem, &$solution, $mode = null, $custom = null)
{
global $cfg;
require_once 'tester.php';
$prob = problem_load($problem);
// Compile and Test first
if ($custom != null) {
$ret = test_cases($problem, $solution, $custom);
} else {
if ($mode == 'practice') {
$ret = test_cases($problem, $solution);
} else {
// only test examples
$ret = test_cases($problem, $solution, array_keys($prob->examples));
}
}
$result = $ret[0];
if ($mode == 'submit') {
// Submit after testing
if ($result == 1) {
echo "<pre class=\"testing\">\n";
echo "Checking for previous submission(s)...";
$res = db_query('solution_by_id', array($contest_id, $team_id, $problem['prob_id']));
$res->fetchInto($row);
$res->free();
$initial = $problem['weight'];
if ($row['submits'] == '0') {
echo "none\n";
} else {
echo "found\n";
echo "Resubmission count...{$row['submits']}\n";
$initial1 = score_resubmit_penalty($initial, $row['submits']);
$percent = (1 - $initial1 / $initial) * 100;
echo "Cumulative penalty...{$percent}%\n";
$initial = $initial1;
}
$res = db_query('contest_time', $contest_id);
$res->fetchInto($row2);
$score = score_calc($initial, $row['elapsed2'], $row2['time']);
db_query('submit_solution', array($solution['language'], $solution['source'], $score, $contest_id, $team_id, $problem['prob_id']));
// Now that user has submitted, we clear his draft
db_query('delete_draft_by_user', $_SESSION['user_id']);
echo "</pre>\n<pre class=\"test_success\">";
echo "<b>Solution to problem </b><i>{$problem['prob_id']}</i><b> submitted for ";
printf("%.3f points!</b>\n", $score);
echo "Note: The above score is not final. The actual score will be determined by the system tests.";
echo "</pre>\n";
} else {
echo "<pre class=\"test_error\"><b>Solution failed to pass all tests. Refusing to submit!</b></pre>";
}
}
}
