示例#1
0
 function GetProblemLetter($contest_id, $problem_id)
 {
     if ($contest_id < 0) {
         $contest_id = $_SESSION['WT_contest_id'];
     }
     if (isset($this->cache['letters'][$contest_id][$problem_id])) {
         return $this->cache['letters'][$contest_id][$problem_id];
     }
     $this->UpdateTasksCache($contest_id, $problem_id);
     $arr = $this->cache['tasks'][$contest_id];
     $n = count($arr);
     for ($i = 0; $i < $n; $i++) {
         if ($arr[$i]['problem_id'] == $problem_id) {
             $res = core_alpha($arr[$i]['letter']);
         }
     }
     $this->cache['letters'][$contest_id][$problem_id] = $res;
     return $res;
 }
示例#2
0
文件: builtin.php 项目: Nazg-Gul/gate
 function core_alpha($a)
 {
     $arr = " ABCDEFGHIJKLMNOPQRSTUVWXYZ";
     if ($a < 27) {
         return $arr[$a];
     } else {
         $b = $a;
         $tmp = 0;
         while ($b > 0) {
             $tmp++;
             $b -= 26;
         }
         return core_alpha($tmp - 1) . $arr[$b + 26];
     }
 }