重命名 js submit_problem -> problem

static/src/js/app/oj/problem/problem.js

@@ -0,0 +1,33 @@
+require(["jquery", "code_mirror"], function ($, code_mirror) {
+    var code_editor = code_mirror($("#code-editor")[0], "text/x-csrc");
+
+    $("#language-selector").change(function () {
+        var language = $("#language-selector").val();
+        var language_types = {c: "text/x-csrc", cpp: "text/x-c++src", java: "text/x-java"};
+        code_editor.setOption("mode", language_types[language]);
+    });
+
+    function show_loading() {
+        $("#submit-code-button").attr("disabled", "disabled");
+        $("#loading-gif").show();
+    }
+
+    function hide_loading() {
+        $("#submit-code-button").removeAttr("disabled");
+        $("#loading-gif").hide();
+    }
+
+    $("#submit-code-button").click(function () {
+        show_loading();
+        setTimeout(
+            function () {
+                $("#a").animate({opacity: '1'})
+            }, 3);
+    });
+
+    $("#show-more-btn").click(function(){
+        $(".hide").attr("class", "problem-section");
+        $("#show-more-btn").hide();
+    })
+
+});